M2 Carbine Conversion Parts Kit - M1-->M2 - POST 86 - LAW LETTER REQUIRED All of the normal required parts for an M1 to M2 conversion - bolt, slide,selector,disconector, etc PRICE - $2,000 Caliber: 10mm. These changes in the type V slide corresponded to changes in the bolt design adopted by Ordnance Flat bolts manufactured by National Postal Meter having the pointed lug design appear to have been manufactured in lieu of the round bolt and are absent the other design changes. carbines needing a replacement in the future. Accessories Handguards Magazines Parts List Schematic The revolutionary .30-carbine 7.62x33mm round pushed a 110-gr. M2 Parts in M1 Carbine. Legality? - MachineGunBoards.com Forums M1 Carbine Slide. Those having a curved/flat tip on the front of the right bolt lug, shown in the series of photos in the column on the left below. any slide with a wide arm joint for use with the M2 carbine. Two types of slide stops and their associated spring were used. and are in excellent or new condition. Possession of an unregistered M-2 conversion kit, which consists of the following seven parts, constitutes possession of an unregistered NFA firearm; regardless of whether or not assembled; selector selector spring selector lever assembly stress on the right bolt lug. With a seventh footnoted as a variation The three parts that are exclusive to selective fire and have no place in a semi-auto are the disconnector, disconnector lever, and selector. letter/number indicates. In the meantime, there is a great Carbine forum at www.jouster.com They specialize in the M1 but there is a lot of M2 knowledge there as well. 226 Williams Ln. Historians to this day debate and struggle as to how best categorize the M2 carbine. Refer to the narrative on the M2 slides (below) for additional info on slides marked 7160091. This is HSA or High Standard Arms manufacture from the early to mid 1950's. These were produced to use as replacement /overhaul slides for the rifles retuning from the Korean War. While any bolt will work with any slide in any carbine, the best performance, reliability and safety can be expected by using a round bolt with all of the design changes in conjunction with a type V slide marked 7160091 on the bottom simple angle with compound cut on the left side of the firing pin at the rear, resulting in the type II firing pin. The carbine was polished and blued, the stock was sanded and . The item you are trying to purchase is currently out of stock.Please enter your name, email, and phone number below. Website by Hudson. We're in good shape when I received them. mmm. Compare specifications of Hi-Point Carbine TS (Target Stock) 10mm 1095TSFDE and Smith & Wesson M&P 10MM M2.0 Optics Ready Slide 10mm 13389. In reference to the slides, Riesch's method identifies six slide variations he designated as types I-VI. Used condition. Click Here. The King Arms M2 series gas airsoft guns are constructed from real wood and feature realistic operations [King Arms] M2 Carbine GBB Rifle[Top GAS Ver.] When actual production on the gun began, the decision was made to not include that feature. New: Smith & Wesson FPC 9mm Folding Carbine - ussanews.com Do not use the forked lever for disassembly as one of the prongs may break. It will be used during reassembly. L479 slide with government vendor (CAGE) code 28627 (High Standard Mfg. M2 Carbine: The Best Rifle Ever Used by the U.S. Military? Manufactured and registered by Broadhead Armory. The type I extractor was used from the beginning of production. The sear, trigger housing, slide come to mind. Show in Photo 16 and 17 are a flat slide box on the left, a . Additional springs are $ 4 each. Chambered in 9mm, the optics-ready FPC has a length of 30 inches and a compact folded length of 16 inches. 10mm. Smith & Wesson M&P FPC 9mm Pistol Carbine - Handguns On November 18, 1943 U.S. Army Ordnance standardized a number of design changes to various parts for the U.S. Carbines. (check here first) - Keep in mind that many early parts were unmarked, I'm listing the parts markings. into the proper position that will allow the extractor to be inserted in it's hole without being impeded. -Underwood: Didn't mark them. Why would an inspector over-stamp the part number, I mean it is a very bold F stamp? The M2 was a simple modification of the ubiquitous M1 Carbine. In today's episode of "I Carry," we have a Smith & Wesson M&P9 M2.0 Metal pistol with a Holosun EPS Red2 red-dot sight carried in a KSG Armory Lexington IWB holster. If the two are intermingled these surfaces should be inspected regularly as wear or damage in these The photos on this page show the slide characteristics both methods use. The military issued soldiers field conversion kits (T17 and T18) to easily convert M1s into serviceable M2s. $75.00. Turning the screw to force the bolt fully forward within the tool will cause the lever to push the plunger (arrow) The M1 Carbine modeled here shows the very early production, with a highwood stock with an I-cut, a narrow 2 rivet handguard, early flip-sight, flat-cam slide with narrow arm joint, flat-bolt, push button safety, and narrow barrel band. SOLD - $250.00 Shipping: $20.00 Accepted Payment Methods: Returns: No Returns Description: This is everything you need, minus the slide, to convert a semi-auto M1 Carbine into a select fire M2 Carbine (Class 2 manufacturers only. To simplify documenting this change, the data sheet While many carbines were manufactured as M2s the only real difference between the M1 and M2s was the fire control group they belonged to. Kingston, NY 12401, 2023 Numrich Gun Parts Corporation. Holding the bolt and tool together with one hand while turning the screw with the other will force the the extractor/spring Due to its simplicity, it has become the most commonly used method to describe part variations. This was an average of 17,625.5 carbines a day. Bolt lugs with the pointed tip have a width approximately .05" less than those with the curved/flat tip. into it's hole. Related Items M1 Carbine Slide Lock and Retainer Spring (0) (described in (1) through (5) below) can also be used on the carbine Ml. In March 1943 Ordnance reported these changes were already in effect at Inland, All Rights Reserved. to catch the plunger if it pops out while backing the screw out. more info Quick . Tracer1951 Rating - 100% 1 0 0 Joined Nov 24, 2012 Unissued, In the Wrap, Magazine Cap, Rubber, New (Showing Storage Wear), Magazine Re-Build Kit (Incl Mag Spring, Follower, Floorplate & Rubber Cap), Magazine Spring, Reproduction (15 Rounds But Can Be Cut Down For 5 Rounds), Rear Sight Aperture, Stamped, Made in Japan, Used, Recoil Spring Housing, Type II, Early Mfg (w/o Tab). Corp.) While it's possible to disassemble and reassemble the bolt group without a bolt tool (see below), depressing the ejector GUNS Magazine The M2 Carbine - GUNS Magazine Show more Show more The large amount of data submitted over the years has been the primary source used by Carbines are infantry rifles shortened for portability, originally conceived as a handier weapon for cavalry. That's not my guess..that the actual results of auction. and added a cam cut to the right side of the slide for the M&P 10MM M2.0 Thumb Safety Optics Ready Slide. The registered serialized part is trip lever so you can blast and build another new gun forever. Insert the plunger and its spring into the recess of the bolt with the plunger oriented with the cutout for the extractor lip The frame also contains a button-release folding mechanism at the front, and a buffer tube at the rear. Changes in parts designs were made to cut production costs and time, improve reliability and/or function, . of types II/IV. Whereas the M1 Carbine was only capable of semi-automatic-fire-only, the M2 variant brought a selective-fire capability with it as well as support for a 30-round, curved detachable box magazine. Description: This is replica of WW2 rifle is Green Gas operated model, which is made from high quality real-wood stock, full length inner barrel, with blow back action. Inland produced the most with 121,851 (average 4,061.7 a day). Numrich Gun Parts Corporation Parts List Sort by: Show Available 0 Schematic w/ Parts List 1 Buttplate Screw 2 Buttplate 4 Slide Lock 5 Slide 6 Slide Lock Spring 7 Recoil Plate Screw 8 Recoil Plate 10 observed. Ask Seller a Question. The lead-in angle of this ramp was slightly increased and appears as a slightly larger "hump". Will fit ANY M1 or M2 Carbine!! Each differed in the angles at the front of the ejector in an effort to improve ejection. Part M&P Pistol, Part Carbine. M1/M2 Carbine Slide I need help. As low as $0.00. Genius Ecommerce by 1Digital. Upon closer inspection, I have found that the slide is a type 6 slide with the milling to allow for the disconnector lever, the hammer is an m2 hammer, and the trigger frame has the milling in the mag well to accomadate the selector spring. Item Number: WC-126. Differences in M1 and M2 carbines | Mississippi Gun Owners 7161843, W, H, J, (all these stamps are in the slide well)and an I stamped outside of the well Type V Springs are USGI from WWII. The purpose of the tang on the rear of all firing pins is to engage a cut in the rear of the receiver bridge The plunger can be an eye hazard if allowed to launch while under spring tension, and good luck finding it. elimination of the lightening cut that produced the round bolt. During the month of November 1943 (when these particular bolt changes were standardized) M1 Carbine production peaked with 528,765 M1 Carbines manufactured by nine prime contractors at ten separate facilities. These changes were to the opening (black arrow) $1.50. WE JUST GOT IN 3 CRATES OF NEW UNISSUED SLIDES. areas can remove this important safety feature. Can a M1 Carbine be converted to a m2? The M1 Carbine was a weapon system, in the purest sense. The type III extractor remained in use through the end of production and beyond. If your Op slide is a type V (5) and an M2 the arm where it is connected to the slide body has an angle cut on the bottom front corner, can be used and is found on both M1 & 2. Be the first to write a review Use of a commercial hammer or bolt with a GI hammer or bolt is not recommended. Bob D The majority of flat bolts have the rounded/flat tip, though flat bolts with the pointed tip are not uncommon. Rating Required. M1 - M2 Carbine. M2 disconnector, disconnector spring, disconnector plunger and M2 hammer are classified as a machinegun. When originally designed, the M1 carbine was intended to have only selective-fire capabilities. Just good quality U.S.G.I. Class III Weapons - Machineguns - M2 Carbine firearm@verizon.net * Tel: (817) 481-6616 * Fax: CALL Western Firearms Co. * P.O. $75.00 more info Quick view Add to Cart. Skip to main content Skip to search. In 1994, author Craig Riesch, in his book US M1 Carbines: Wartime Production, introduced a different method for identifying the parts and variations. Quantity: USGI, Used, Good Condition. The screw can then be rotated out and the assembled bolt removed. along with the ejector and it's spring can be removed. Has government serial numbers. Add to Compare. This necessitated the development of a studier catch. Right side of the back of the mag well wall is cut away for the disconnector on the M2. M1 Carbine. Operating slide spring. USGI. M2. - Small Rifle Parts at Review Subject Required. more info Quick view Add to Cart. Price: $5.00. Will accept money orders or cashiers checks only. Likely made by a few manufacturers in lieu of the 45 degree bevel cut as opposed to a new design. Riverbank Armory Parts Page 4 - M1 Carbine the design changes that accompanied the round bolt. February 28, 2023 By Smith & Wesson. U.S. Winchester M2 Automatic Carbine, Class III/NFA Registered Fully Transferrable Machine GunManufactured concurrently with the M1, Winchester would produce carbine receivers with the model number left unstamped and strike them with the "1" or "2" as appropriate later in production depending on their needs. Box 451 * Grapevine, Texas 76099 Selective Fire Weapons Semi Auto Weapons Special Weapons Short Barrel Weapons / AOW's Suppressors Night Vision / Optics Magazines & Clips Custom Ammunition (w/ Bayonet Lug), Safety Spring & Safety Spring Plunger, Used, Magazine Catch Plunger & Spring Assembly, New, Stock Escutcheon, Early Type I, Used Factory Original, Trigger, G.I., In The Wrap, Unissued (Pack of 10), Trigger Springs, Pack of 10, G.I. May show signs of wear, marring, gime, surface rust, pitting, etc. least with 22,754 (average 758.46 a day). Along with the design of the rear The extractor can now be removed, followed by the firing pin. Using similar but less detailed characteristics in use by The Carbine Club, Reisch assigned each an easy to remember single digit number. Ordnance Department appreciated that the advent of paratroopers and fast-moving armored columns meant that rear-line support and . D7161843 (over-stamped with F), PI (In Slide well) Type V 2. The three basic It is stamped PI (Packard Inland) in the well and has the manufactures M2 code D716842. Swivel the forked end of the lever to engage the plunger to hold it and it's spring in place. Can be used and is found on many M1 carbines. Disassembly and reassembly of the bolt group is faster and much easier when using this tool. It has a dark green finish and does not have the slide lock included/installed. L479 slide with government vendor (CAGE) code 96567 (Dennison Machine Tool) The M2 Carbine: America's First Assault Rifle? to it has not provided sufficient details for reconstructing the history of value to researchers, collectors, authors, and historians. The M2 carbine has endured throughout the decades to grow into one of the most desirable Civilian NFA pieces for exactly the same reasons it won over thousands of GI s during its military service: it is a light, handy, well engineered weapon with a natural feel to it that is easy to master and enjoy the sport of Full?automatic shooting. I've watched quite a few videos on youtube, not sure if it would be worth the cost but it sure looks fun. Please use the forum for other questions. The M2 included improvements to the rear sight, the addition of a bayonet lug and other improvements off of the M1 design. Sorry, we are unable to offer specific rare parts or manufacturers from this listing at this time. M1/M2 Carbine Accessories. It's based on the M&P pistol architecture, and it's compatible with full-size and compact double-stack M&P 9 pistol mags. M2 Carbine Potbelly Stock Walnut used G.I. m2 carbine for sale on GunsAmerica. Buy a m2 carbine online L479 B slides manufactured for Ordnance as spares/replacements post WWII. More powerful than a submachine gun, it can be considered an assault rifle, despite it firing projectiles considerably less powerful than the StG 44s 7.9233mm Kurz. The small notch engaged by the extractor plunger did not reliably retain the extractor within the bolt, occasionally allowing the extractor to be thrown from the bolt by The fire prototypes of the M1 Carbine had actually been selective-fire guns, but that requirement had been dropped by the time the Winchester design was officially adopted as the M1. This will fit ANY M1 or M2 Carbine!! 100% Original USGI M1 Carbine Hammer Springs NOS from Package in grease Lot of 2 $13.59 Free shipping WW2 US M-1 M1 Carbine Front Sight SI-B marked good condition frontsight IBM $79.95 Free shipping WW2 US M-1 M1 Carbine oiler marked SI large font underwood inland winchester $29.95 Free shipping PLEASE SEND US AN EMAIL DETAILING WHAT YOU HAVE, M1 Carbine Stock Hardware Kit, New/Like New, Barrel Band, Type 1, without Bayonet Lug, M1 Carbine, Barrel Band, Type 2, without Bayonet Lug, M1 Carbine, Barrel Band, Type 3, with Bayonet Lug , USGI New, M1 Carbine, Disconnector Lever, USGI Like New, M2 Carbine, Ejector with Spring & Plunger, USGI New, M1 Carbine, Extractor Spring with Plunger, HD, M1 Carbine, Rear Sight, Complete, Adjustable, M1 Carbine, Rear Sight, Flip, New Commercial, M1 Carbine, Recoil Plate, Post-WW-II, Cast, USGI Excellent, M1 Carbine, Recoil Plate, Milled, USGI Excellent, M1 Carbine, Recoil Spring, Chrome Silicon, New, M1 Carbine, Trigger Housing, M2 Carbine, Milled, USGI, Trigger Housing, M2 Carbine, Stamped, USGI, Trigger Housing Retaining Pin, M1 Carbine. Have three sold two and have one left original New Old Stock USGI WWII Type VI (6) M1/M2 Carbine SAGINAW GEAR SG D-7161843 slide.It is very clearly marked on the bottom. During February 1943 Ordnance issued directions to change the design to the type III extractor with type I extractors already in service to be modified to This further required a modification on the slide, sear and stock. or the type VI slide. The two are stamped; 1. M2 Carbine (US Carbine, Caliber 30, M2) - Military Factory . There are several theories as to how this happened but they are only theories. M1 Carbine Parts M1 Carbine Parts All listed parts are original U.S.G.I. We have recently added some M1 Carbine stocks to our stock section. Identification of the type II versus type III extractors usually requires disassembly of the bolt and removal of the extractor. The U.S. Caliber .30 Carbines - Parts to escape before unlocking the bolt. and/or to increase safety. "Sleep well my friend, and dream of large women". This information may also give you insight into just one example of many that you'll be in for should you decide to get seriously involved in collecting these carbines. History looks back upon the M2 carbine as an anomaly of sorts. Great slide at a good price!! Related Items Share your knowledge of this product. We will contact you as soon as this product is available. M2 Carbine Stock - What A Country, Inc. These were produced to use as replacement /overhaul slides for the rifles retuning from the Korean War. *NOTE THE MARKINGS ON THE LID . Good quality part. more info Quick view. The M2 Carbine would remain in U.S. military service into the 1960s, even as the Army adopted the large M14 battle rifle and then the iconic M16 assault rifle still in use today. SOME ITEMS ARE ONLY COMPATIBLE WITH USGI SPEC CARBINES, WE DO NOT GUARANTEE COMPATIBILITY WITH REPRODUCTIONS OTHER THAN FA CARBINES. It comes equipped with three double-stack M&P pistol magazines, including one 17-round and two 23-round mags. There were four variations of the ejector. Posted by Michael L Bonomo on Aug 13th 2020. The Discussion Forum also serves as a reference desk for the more advanced material that could easily overwhelm a website and is often subject to opinions that may vary While this has been the easiest to remember and refer Each part may vary in finish, blued, parkerized, or unfinished / in the white. The ejector sits within the hole in the bolt face (bottom right). Expect first quality replacements. M2 Carbine Parts for Sale | Numrich Gun Parts The upgrade was considered a success, however, there were tradeoffs. is not as simple as 1-6 it provides additional valuable information with room to expand should additional variations be found. The type I firing pin was in use from the beginning of production. M2 Carbine Slide G.I. M1 Carbines Incorporated The M2 Carbine: Assault Rifle or Submachine Gun? - Forgotten Weapons Will fit ANY M1 or M2 Carbine!! Most guns in private hands will be M1, although a few M2 Carbines exist in private hands. Are Spare M2 Parts Legal? - The M1/M2 Carbine Message Board The M2 included a heavier 30-round magazine which put greater strain on the magazine catch. M1/M2 Carbine Slide - CMP Forums - Civilian Marksmanship Program M1/M2 Carbine 15rd Mag Springs (3 pack), New G.I. M15 Grenade Launcher Sight. M2 Carbine Pot Belly Stock & Handguard, new, M2 Carbine Disconnector Spring and Plunger. (SA on this slide identifies the manufacturer as Springfield Armory) L479 slide with government vendor (CAGE) code 28627 (High Standard Mfg. February 28, 2023 By Smith & Wesson. punch mark can be observed between the The M2 included improvements to the rear sight, the addition of a bayonet lug and other improvements off of the M1 design. Copyright 2023 SARCO, Inc. All rights reserved. M2 Carbine Schematic | Numrich Gun Parts What will be displayed is the actual selling cost (worth) of a M1. These parts are used specifically for fully automatic fire and have no application in a semiautomatic carbine. In 1943, the War Office decided to produce an M2 Carbine capable of automatic fire, entailing the addition of a small number additional parts, and strengthening the butt of the gun and the. The Discussion Forum also serves as a reference desk for the more advanced material that could easily overwhelm a website and is often subject to opinions .30 Carbine Rifle Parts, Carbine Hunting Quad Rails, Unbranded Rifle Parts .30 Carbine, Winchester .30 Carbine Rifle Parts, Steel Part Rifle Parts .30 Carbine, GLOCK Pistol Slide & Firing Parts, Slide & Firing Part Pistol Parts, GLOCK GLOCK Slide & Firing Part Pistol Parts, Smith & Wesson Pistol Slide & Firing Parts, Your friend will receive an email from you with a link to our site. The Carbine Collectors Club. It comes equipped with three double-stack M&P pistol magazines, including one 17-round and two 23-round mags. The M2 slide (Type VI / L479 B) retained the increased dwell time of the L379 B slide Compare specifications of Hi-Point Carbine TS (Target Stock) 10mm 1095TSFDE and Smith & Wesson M&P 10MM M2.0 Thumb Safety Optics Ready Slide 10mm 13388. . On the example at right the The one with PI in the well is an Inland slide type 6 M2 slide and the other as meplat said could very well be Winchester. Price: $99.95. Figure 2. Shop our selection of M2 Carbine parts and accessories today with Numrich. The upgrade was considered a success, however, there were tradeoffs. During the same month Ordnance had been discussing the end of production for several prime contractors in the near future. test firing. Looking for an M2 Carbine schematic and parts for your repair or restoration project? The spring remained unchanged throughout production. The M2 Carbine was a development of the highly successful US M1 Carbine (see FIR 6011). Commercially Manufactured M1 Carbine Replacement Parts What You Need to Know About Parts There is only one standard for the dimensions, machining, quality, and life span of every part on an M1 Carbine. We will contact you as soon as this product is available. The M2 hammer will work in an M1 with a shim. Smith & Wesson FPC 9, Folding Pistol Carbine - AR15.COM This fits, functions and is correct for all late model Inland M1 and M2 Carbine. Throughout production bolts were given a I've really enjoyed my M1 carbine since I bought it 2 years ago but I sometimes think what it would be like to shoot the Select Fire M2 carbine. Generally the shank on the type I plunger is longer -Quality Hardware: Marked "QU" Q-TX" "UI" Or . Get them here with Numrich Gun Parts - serving the firearms community with hard-to-find parts and accessories since 1950. SG had a contract with Inland to make type 6 slides for them. M1 carbine - Wikipedia Full automatic fire capabilities were included in the design of the M2 carbine, an upgraded selective-fire version of the M1 released in 1944. .30 carbine M1. Fulton Armory | M1 Carbine Parts Is it illegal to own an M2 carbine? - Sage-Advices Smith & Wesson Brands, Inc. has introduced its new folding pistol carbine, the M&P FPC. Numrich Gun Parts has been providing parts like these M2 Carbine parts since 1950 and has the experience and selection that you'd expect from the leading source of current and obsolete gun parts. Rebuild specifications called for modifying the right side of This fits, functions and is correct for all late model Inland M1 and M2 Carbine. -Winchester: Didn't mark them. The Carbine Collectors Club has identified nine basic slide variations with several additional uncommon variations. jacketed bullet to just a bit short of 2,000 feet per second. This was the case for the round bolt and the four other design changes that accompanied it. An Official Journal Of The NRA | I Carry: Smith & Wesson M&P9 M2.0 That drawing number indicates each was originally made for the M2, i.e. Since these are well known to many people the six types are shown in the left column below (Common Type). Late War Inland M1/M2 Carbine Operating Slide Type 6 | eBay that may vary due to a lack of original documentation. M1 Carbine Buttplate - Parkerized Steel. Should you have questions, assistance is available on our Discussion Forum. These slides were manufactured in WWII by Saginaw Gear to supplement Inland production. Ordnance documentation has been found that the presence of an X on top of a round bolt approximately 1/2" Insert the firing pin, then the extractor. New, Old Stock, excellent condition TypeV M1/M2 Inland Carbine Slide. Ordnance drawing/part number 7161843 was added to the M2 slide. New: Smith & Wesson FPC 9mm Folding Carbine | RECOIL OFFGRID Class III Weapons - Machineguns - M2 Carbine Having lived in the Market Garden area for 25 years, he has been studying the events for nearly as long. THESE ARE NEW UNISSUED WW2 AND HAVE BEEN PACKED IN COSMOLINE SINCE THE WAR. Springs are used and in excellent condition. Some people post stupid prices or have reserves. M1 Carbine Spring & Pin Kit. All Rights Reserved. M2's Disconnector Lever. Accessories - Iver Johnson Arms -Inland: Marked "UI" "U" Or unmarked. using a standard form (data sheet) since 1978. 30 caliber submachine gun developed in the 1940s. This modification was not implemented as a standard Birch, Beech, Walnut request honored if available. The cam cut was slightly changed with the net result of all changes adding .080" for the slide to travel in Vietnam in 1968 and had two M2 carbines that had been taken from NVA troops. 10+1. While most GI bolts (flat and round) have a very long lifespan, if a bolt is going to crack and/or break Numrich Gun Parts has been providing parts like these M2 Carbine parts since 1950 and has the experience and selection that you'd expect from the leading source of current and obsolete gun parts. Either can get the job done. Part M&P Pistol, Part Carbine. Dummy and Inert Grenades, Mortars & Rockets, Buttplates, Grips, Stocks, Forends & Handguards, Rocket Launcher, Bazooka, Cannon and Mortar Parts, Women's Tactical Gear, Accessories & Gifts, Flags, Stamps, Decals, Posters & Wallcharts, Everyday Carry Knives, Tools & Accessories, M1/M2 Carbine Extractor Spring and Plunger, M1/M2 Carbine Mag Catch Spring and Plunger. A number of researchers and authors are present on the forums, helping others and seeking information for various research projects. Winchester M2 slides are occasionally found with the 7160091 part number. A number of researchers and authors are present on the forums, helping others and seeking information The M2 Carbine (1945) - warhistoryonline prevent the hammer from hitting the firing pin when the bolt was not rotated and locked. GI specifications. Combat experience with the latter weapon suggested that a provision for fully automatic fire would be useful in certain circumstances - particularly in close terrain such as was frequently encountered in the Pacific theatre of operations.