Rifle Upper Receivers US Specifications
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 Bravo Company Ar 15/M4 Flattop Upper Receiver Assembly US Specifications
USD 119
(Indicative price - actual current price possibly lower)
Technical data & information: Forged aluminum flattop receiver includes fully-assembled forward assist and ejection port cover and accepts barrels with m4 barrel extensions. All final dimensions machined to correct mil-spec tolerances to readily accept standard ar-15 parts to help you complete an upper receiver. Laser-etched t-marks on picatinny rail enable easy removal and re-mounting of optics, sights, and other accessories in the correct position. Interior has dry film lubrication to help reduce wear. Inside diameter for barrel extension slightly undersized for a tighter fit to the barrel and a more accurate rifle. Please use a hair dryer to warm up threaded bore of receiver if barrel extension is too tight. Mfg: bravo company specs: 7075 t6 aluminum, hardcoat anodized, matte black. .250" (6.3mm) pivot/takedown pin holes. US specification & reliable quality rifle upper receivers by Bravo. Part Nr: BCM4URM4.
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Brownells Ar 15 Assembled Upper Receiver Keymod 300 Blackout Ar 15 Assembled Upper Receiver W/O Ch Or Bcg 300 Blk US Specifications
USD 284.99
(Indicative price - actual current price possibly lower)
Technical data & information: This brownells' exclusive ar-15 upper receiver is made in the usa. Chambered in 300 blackout and featuring a 16" barrel with a 1:8 twist. The standard a3 13-slot aluminum flat top receiver comes with a 10" handguard utilizing the keymod rail system. A low profile gas block, forward assist, ejection port cover and phosphate finish help to complete this package. Left out of this upper are the bolt carrier group as well as the charging handle so you can customize the upper any way you want! the a3 upper receiver will attach to almost any standard ar-15 lower receiver. Mfg: brownells. US specification & reliable quality rifle upper receivers by Brownells. Part Nr: BRO300MS16KM10S.
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J P Enterprises 308 Ar Pcs 12 Side Charging Upper Ar 308 Psc 12 Side Charging Upper Receiver US Specifications
USD 1269.99
(Indicative price - actual current price possibly lower)
Technical data & information: Building off the popularity of the psc-11 upper receiver kits, jp enterprises offers a .308 compatible psc-12 upper receiver kit to the home builder. The kit includes: psc-12 upper receiver ejection port cover and hardware forward assist and hardware top- and side-charging systems low mass jp bolt carrier jp enhanced bolt group (bolt, cam pin, firing pin and firing pin retaining pin) this kit assembles exactly like a traditional .308 upper with the simple addition of the side-charge handle, which slips into place as easily as a standard t-handle. If you can build an upper, you can build your own psc-12 and tap the potential yoursel mfg: j p enterprises specs: compatable with dpms pattern rifles and parts. US specification & reliable quality rifle upper receivers by JP. Part Nr: JPPSCURA4.
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Daniel Defense Ar 15 M4a1 Socom Block Ii 5.56 Stripped Upper Receiver M4a1 Stripped Socom Upper Receiver W/ Handguard Only US Specifications
USD 674.99
(Indicative price - actual current price possibly lower)
Technical data & information: For those looking to match the specs and performance on the m4a1 socom block ii carbines used by troops during operations iraqi freedom and enduring freedom, the daniel defense m4a1 socom block ii upper receiver is a great starting point. The daniel defense m4a1 socom block ii upper receiver features a quad-rail handguard equipped with a picatinny-compatible rail sections. The barrel is constructed from mil-spec chrome-moly vanadium steel and features a standard government profile (current socom issue) with a chrome-lined interior, matching military-style barrels with the same construction. Made from 7075-t6 aluminum barrel length: 16 inches twist rate: 1:7 mfg: daniel defense. US specification & reliable quality rifle upper receivers by Daniel. Part Nr: 100-025-582.
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Daniel Defense M4 Urg Mk 18 10.3" Complete Upper Receiver 5.56 US Specifications
USD 1092
(Indicative price - actual current price possibly lower)
Technical data & information: Daniel defense manufactures the highest quality complete ar15 upper receivers on the market today! every daniel defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of our customers. The daniel defense m4 urg, mk18 comes complete with bolt carrier group and charging handle, 10.3′ cold hammer forged barrel, ris ii mk18 rail system in black or flat dark earth, and daniel defense low profile gas block. Upper receiver: mil-spec with indexing marks and m4 feed ramps. Cnc machined of 7075-t6 aluminum, type iii hard coat anodized barrel: chrome moly vanadium steel, cold h mfg: daniel defense. US specification & reliable quality rifle upper receivers by Daniel. Part Nr: 2.30041E+11.
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Drd Tactical Ar 15/M16 Quick Takedown Build Kits Quick Takedown Upper Receiver Build Kit 7" Rail US Specifications
USD 694.99
(Indicative price - actual current price possibly lower)
Technical data & information: Specially-designed receiver and handguard incorporate a unique barrel mounting system that allows the user to quickly and easily remove the handguard and the barrel without tools and break down the rifle for easy storage or transport. Barrel and handguard are secured to the receiver with a hand-tightened barrel nut along with a pin and cam lock for a rigid, rock-solid setup. Accepts barrels with rifle-length gas systems and a2-style front sight tower/gas block or shorter barrels with low-profile gas blocks. Extra barrel nuts can be purchased to allow additional barrels to be used with the takedown system for maximum versatility. Mfg: drd tactical specs: made from 7075 aluminum mil-spec forged anodized upper with forward assist and dust cover complete 13" rail assembly barrel nut. US specification & reliable quality rifle upper receivers by DRD. Part Nr: 556BLDKIT7.
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Radical Firearms Ar 15 16" Upper Assembly 7.62x39 Hbar Fgs Rail No Bcg Or Ch US Specifications
USD 239.99
(Indicative price - actual current price possibly lower)
Technical data & information: Radical firearms 7.62x39 16" hbar radical upper receiver is a flat top, drop in receiver, ready to be mounted to any mil-spec ar-15 lower receiver. This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes assembled with upper receiver, forward assist, ejection port door, and barrel nut. 16" hbar profile barrel and a2 flash hider. 16" hbar melonite barrel 4150v chrome moly 1 in 10" twist rate 7.62x39 chamber 5/8x24 thread pitch hpt/mpi m4 feed ramps low profile micro gas block stainless pistol-length gas system (this will cycle subsonic loads) 16" mfg: radical firearms. US specification & reliable quality rifle upper receivers by Radical. Part Nr: FU16762X39HBAR.
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Aero Precision M4e1 Assembled Upper Receiver 10.5" 5.56mm Carbine Length M4e1 Assembled Gen2 Upper 10.5 Car Length 7 Handguard US Specifications
USD 379.99
(Indicative price - actual current price possibly lower)
Technical data & information: Aero precision's m4e1 5.56mm 10.5" carbine upper receiver comes fully assembled, lacking only a bolt/carrier group and charging handle, the two most popular components for customization. At its heart is aero's forged m4e1 receiver that combines the look of a custom billet receiver with "mil-spec" parts compatibility (including bcg and charging handle) and a proprietary attachment system for the included handguard. Aero has fitted the m4e1 5.56mm 10.5" carbine upper receiver with a barrel of high-grade 4150 chrome-moly-vanadium carbon steel chambered for 5.56mm nato ammunition, so it will safely handle civilian .223 remington ammo too. The versatile 10 mfg: aero precision. US specification & reliable quality rifle upper receivers by Aero Precision. Part Nr: APAR640211M3.
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Colt Ar 15 M4 Assembled Upper Receiver 5.56mm Ar 15 M4 Upper Receiver 5.56mm No Bcg Charging Handle US Specifications
USD 399.99
(Indicative price - actual current price possibly lower)
Technical data & information: While the colt m4 ar-15 assembled upper receiver is similar to the popular colt le6920ck upper receiver, this particular offering provides ar aficionados with the chance to further customize their upper, leaving room for particular components. The colt m4 ar-15 assembled upper receiver ships with a chrome lined barrel with a 1:7-inch twist rate and requires the end-user to add their choice of charging handle and bolt-carrier-group, since these two components are not included on this assembled upper. Otherwise, the colt m4 ar-15 assembled upper receiver is totally complete, having an all-black finish and chambered for the popular 5.56mm nato cartridge. Mfg: colt. US specification & reliable quality rifle upper receivers by Colt. Part Nr: 160-000-446.
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Colt Ar 15 5.56 Upper Receiver Complete Upper Receiver 16" US Specifications
USD 747.99
(Indicative price - actual current price possibly lower)
Technical data & information: Add the colt legend of reliability to your rifle or build with these complete upper receivers from colt. The le6920ck and le6921ck are based off the combat proven m4 upper receiver and features 1/7 rh twist in a 16.1" barrel on the le6920ck and 14.5" barrel in the le6921ck. All upper receivers include a charging handle, bolt carrier group, and back up sights. All nfa rules apply. Mfg: colt. US specification & reliable quality rifle upper receivers by Colt. Part Nr: LE6920CK.
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Aero Precision M4e1 Assembled Upper Receiver .300 Blackout Black M4e1 Assembled Gen 2 Upper Receiver 16 Pistol Length US Specifications
USD 430.99
(Indicative price - actual current price possibly lower)
Technical data & information: From aero precision, the ar-15 m4e1 .300 blackout assembled upper receivers. Chambered in 300 blackout, the upper is finished with black anodizing and available in three lengths, each with different length handguards. This upper does not come with the charging handle or bolt carrier group, allowing the user to personalize their upper receiver even more! the aero precision assembled upper receiver also features: m-lok em-7 7" for 8" barrel, 9" handguard for 10" barrel, 15" handguard for 16" barrel 8", 10", and 16" carbine length chrome moly barrel pistol length gas system w/ low profile gas block standard a2 mu mfg: aero precision. US specification & reliable quality rifle upper receivers by Aero Precision. Part Nr: APAR640251M14.
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D.S. Arms Ar 15 Flattop Upper Receiver W/Cover & Forward Assist Upper Receiver W/Cover & Fwd Assist US Specifications
USD 102.99
(Indicative price - actual current price possibly lower)
Technical data & information: M4/a3-style upper receiver is with the forward assist and ejection port cover already installed. Precision machined from a 7075 t6 aluminum alloy forging to usgi dimensions, and ready to mate with the mil-spec lower and internal components of your choice. Includes m4-type feed cuts and alphanumeric position markers stamped into the rail slots. Hardcoat anodized to resist wear, add strength, and protect from corrosion. Hard dry-lube surface treatment protects the anodizing from scuffs and reduces friction between bolt carrier and receiver walls for ultra-smooth operation, less wear, and longer service life. Mfg: d.S. Arms specs: 7075 t6 aluminum, hardcoat anodized, dry-lube finish, matte black. .250" takedown/pivot pin holes. Steel forward assist and ejection port cover; black oxide finish. US specification & reliable quality rifle upper receivers by DS. Part Nr: DSZM4R2C.
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Cross Machine Tool Co. Ar 15 Complete Upper Reciever M Lok .224 Valkyrie Complete Upper Receiver M Lok .224 Valkyrie 22" US Specifications
USD 1185
(Indicative price - actual current price possibly lower)
Technical data & information: Cross machine & tool (cmt) is now offering complete .224 valkyrie ar-15 upper receivers that feature the same proven formula that led cross machine & tool to victory in the 2017 precision rifle series tac lite pro division. The complete ar-15 upper chambered in .224 valkyrie features a 15" hdx mod 4 m-lok handguard, a 20" .224 valkyrie barrel made from 416r stainless steel and has been air gauged to -.0002" for the ultimate in precision. The i.B.C. Model is unique in that it has its muzzle brake and crown machined into the barrel to help keep your scope on target and track impacts. 20" 1:7 twist 416r stainless steel barrel ch mfg: cross machine tool co., inc. US specification & reliable quality rifle upper receivers by Cross. Part Nr: 224UPR22.
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Critical Capabilities Ar 15 8" 9mm Upper Receiver W/ 7" M Lok Rail No Bcg Or Ch US Specifications
USD 354.99
(Indicative price - actual current price possibly lower)
Technical data & information: The critical capabilities barreled ar-15 upper receiver in 9mm offers a reliable package for the sbr builder. This unique combination includes a 8" chrome moly nitride treated barrel with an 7" free float aluminum rail making this upper receiver an ideal blend of functionality and practicality. Forged 7075-t6 flat top m4 upper receiver 8" chrome moly nitride treated barrel 1-10 rh twist 7" free float 6061-t6 aluminum rail w/ m-lok the critical capabilities upper receiver allows for personal customization, and does not include the bolt carrier group or charging handle. Mfg: critical capabilities llc. US specification & reliable quality rifle upper receivers by Critical. Part Nr: C9U8M7.
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Radical Firearms Ar 15 16" Upper Assembly 5.56 M4 Hybrid Rail No Bcg Or Ch US Specifications
USD 291.87
(Indicative price - actual current price possibly lower)
Technical data & information: Radical firearms' 16" m4 upper receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any mil-spec ar-15 lower receiver. This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. The radical firearms 16" m4 upper receiver comes complete and assembled with upper receiver, forward assist, ejection port door, barrel nut. 16" m4 profile barrel and a2 flash hider. 16" m4 melonite barrel 4150v chrome moly 1 in 7" twist rate 5.56 nato chamber m4 feed ramps 12" radical firearms hybrid keymod handguard: features reverse keymod sections so your a mfg: radical firearms. US specification & reliable quality rifle upper receivers by Radical. Part Nr: FU16556M412F.
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Fightlite Industries Mcr Belt Fed Upper Receiver Semi 1913 Sp Mcr Belt Fed Upper Receiver Semi 16.25" 5.56mm 1913 Sp US Specifications
USD 3500
(Indicative price - actual current price possibly lower)
Technical data & information: The fightlite industries mcr belt fed ar-15 upper receiver allows you to convert your ar-15 from a standard, magazine fed rifle, into a multi-purpose belt-fed, that can also feed from a magazine. Simply attach the upper as you would any other, link up your ammunition and go to the range. This unique upper receiver includes a picatinny rail mounted to the top cover, as well as picatinny handguards. 16.25" quick change barrel features a chrome lined bore & chamber. 1-7 twist stabilizes standard, military ammunition, and β½-28 muzzle accepts standard muzzle devices. Receiver is machined from 7075-t6 billet & features a type iii matte black anodized finish. 6-lug rota mfg: fightlite industries. US specification & reliable quality rifle upper receivers by Fightlite. Part Nr: MCR036.
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Anderson Manufacturing Ar 15 Upper Receiver Assembly 300blk No Bcg US Specifications
USD 281.99
(Indicative price - actual current price possibly lower)
Technical data & information: The anderson manufacturing 300 blackout complete upper receiver is a great way to quickly and conveniently build out, or change an existing ar-15 to shoot the popular 300 blackout round. The 16" barrel has a 1-7 twist rate and a phosphate finish. The barrel utilizes a carbine length gas system with a .125 gas port, and has 5/8-24 threads with a 308 a2 flash hider. 16" m4 barrel 1-7 rate of twist 7075 t6 forged upper receiver a2 hand guard a2 flash hider the anderson manufacturing 300 blackout complete upper receiver comes without a bolt carrier group or charging handle, allowing you to select your choice of components to complet mfg: anderson manufacturing. US specification & reliable quality rifle upper receivers by Anderson. Part Nr: B2K611CF00.
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Brownells Ar 15 Slickside Upper Receiver Black US Specifications
USD 149.99
(Indicative price - actual current price possibly lower)
Technical data & information: The brownells ar-15 / m16 slickside upper receiver precisely mirrors the contours of the original, early ar-15 upper receiver. Perfect for your next "retro" or reproduction build, our upper has the following features specific to the original slickside: correct early-style carry handle contours no shell deflector no forward assist a1-pattern rear sight housing with help from the folks at nodak spud, this precise match was achieved by starting with 7075 t6 aluminum forgings that already have the proper profile built in. In machining to final dimensions, all points where other parts attach are finished current mil-spec dimensions, so current-producti mfg: brownells. US specification & reliable quality rifle upper receivers by Brownells. Part Nr: 078-000-363.
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Radian Weapons Ar 15 300blk Complete Upper Receiver Groups 300blk 14.5" Model 1 Blk Complete Upper Receiver Black US Specifications
USD 1401.25
(Indicative price - actual current price possibly lower)
Technical data & information: Sub-moa accuracy guarantee w/ black hills match grade ammunition billet machined 7075-t6 upper receiver w/ m4 feed ramps proprietary extended aluminum hand guard w/ magpul m-lok modular mounting system and integrated upper/hand guard stainless steel anti-rotation pin match grade 416r stainless steel barrel w/ polished crown and feed ramps, chambered in 300 blk, threaded 5/8 x 24 enhanced black nitride m16 bolt carrier group dlc coated lightweight titanium forward assist radian raptor-sd suppressor-optimized ambidextrous charging handle direct impingement gas system 8.7" & 14.5" 300 blk: pistol-length sil mfg: radian weapons. US specification & reliable quality rifle upper receivers by Radian. Part Nr: R0028.
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Knights Armament Sr 25 Precision Rifle Complete Upper Receivers 308 Win M Lok Upper Receiver Precision Rifle Kit 308 Win 20 Barrel US Specifications
USD 3500
(Indicative price - actual current price possibly lower)
Technical data & information: The knight's armament sr-25 precision rifle upper kit was built as a dual role 7.62 nato carbine. Every precision rifle upper receiver is adept at putting rounds on target past 1000 meters. Featuring knight's 20" cut rifled, precision barrel and their newly designed 3-prong qdc flash hider, the 20" precision rifle upper is the ultimate choice in the semi-auto precision rifle world. This complete upper assembly comes standard with a 15" urx4 m-lok handguard, knight's armament micro front sight, knight's armament micro 600m rear sight, sr-25 buffer, sr-25 action spring, and magpul m-lok cover kit. Barrel: 20" mid-weight contour, mfg: knights armament. US specification & reliable quality rifle upper receivers by Knights Armament. Part Nr: 111472.
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Radical Firearms Ar 15 16" Upper Assy 7.62x39 Hbar Std Keymod Rail No Bcg Or Ch US Specifications
USD 332.13
(Indicative price - actual current price possibly lower)
Technical data & information: Radical firearms 7.62x39 16" hbar radical upper receiver is a flat top, drop in receiver, ready to be mounted to any mil-spec ar-15 lower receiver. This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes assembled with upper receiver, forward assist, ejection port door, and barrel nut. 16" hbar profile barrel and a2 flash hider. 16" hbar melonite barrel 4150v chrome moly 1 in 8" twist rate 7.62x39 chamber 5/8x24 thread pitch hpt/mpi m4 feed ramps low profile micro gas block stainless pistol-length gas system (this will cycle subsonic loads) 16 mfg: radical firearms. US specification & reliable quality rifle upper receivers by Radical. Part Nr: FU16762X39HBAR.
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Aero Precision M4e1 Assembled Upper Receiver .223 Wylde Black M4e1 Assembled Gen 2 Upper Receiver 18 Rifle Length US Specifications
USD 359.99
(Indicative price - actual current price possibly lower)
Technical data & information: Aero precision's m4e1 .223 wylde upper receiver provides rifle-like performance, and versatility, in a carbine-sized package. It features a .223 wylde chamber that is optimized to deliver excellent performance from both military 5.56x45mm nato and civilian .223 remington ammunition, including long, heavy (up to 80 grain) target bullets. Aero put a longer gas tube on the m4e1 .223 wylde assembled rifle receiver to slow down gas velocity for gentler cycling that leads to improved reliability and reduced wear on moving parts and the receiver. The 16" barreled model comes with a mid-length gas system, while the 18" barrel comes with a rifle-length gas tube. The m4e mfg: aero precision. US specification & reliable quality rifle upper receivers by Aero Precision. Part Nr: APAR640251M42.
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