Aero Precision Ar 15 M4e1 Stripped Upper Receiver 5.56mm Ar 15 M4e1 Stripped Upper Receiver Black 5.56mm US Specs & Supply
Reliable Rifle Upper Receivers by Aero Precision in US specification & supply
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US gunsmith supply: Aero precision's m4e1 threaded stripped upper receiver is ready to serve as the core of your next custom ar-15 project. It combines the benefits of aero's m4e1 enhanced upper with threads up front to accept a standard ar-15 barrel nut and handguard attachment, for those who prefer to build a rifle with a different handguard from aero's gen 2 enhanced or atlas 'guards. The m4e1 threaded stripped upper receiver is forged from 7075 t6 aluminum, like a regular mil-spec receiver, but with angular external contours that add the strength, and custom look, of a "billet" receiver. The good news: parts compatibility is "mil spec" all the way. The a mfg: aero precision. Find here reliable & durable gunsmith supplies including rifle upper receivers by Aero Precision. US supply MPN: APAR700201C. Aero precision ar 15 m4e1 stripped upper receiver 5.56mm ar 15 m4e1 stripped upper receiver black 5.56mm. Distributor SKU: 100026237-100026237-11224.
 Indicative Price: USD 69.99
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Radical Firearms Ar 15 Complete 450 Bushmaster Upper Receivers Ar 15 20" Complete 450 Bushmaster Upper Receiver Black US Specs & Supply
USD 571.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The radical firearms complete .450 bushmaster upper receiver is a one-piece solution that allows ar owners to finish their big-bore ar builds easily or add a different caliber option for their standard ar-15 lower. The radical firearms complete .450 bushmaster upper receiver comes complete with everything needed for a fully functioning upper and is built with a 15-inch m-lok hybrid rail with picatinny-rail sections located at four different positions around the circumference of the forend. Hbar-contour barrel barrel length: 16 inches or 20 inches 16-inch barrel features mid-length gas system; 20-inch barrel features rifle-length gas system gas-block journal mfg: radical firearms. Find here reliable & durable gunsmith supplies including rifle upper receivers by Radical. US supply MPN: CFU20450BUSH1. Radical firearms ar 15 complete 450 bushmaster upper receivers ar 15 20" complete 450 bushmaster upper receiver black. Distributor SKU: 100025549-100025548-11224.
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Knights Armament Sr 15 E3 Mod 2 Upper Receivers M Lok Ar 15 Upper Receiver Cqb Mod 2 11.5" Urx 4 M Lok US Specs & Supply
USD 1,962.99
(Indicative price - actual current price possibly lower)
Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Knight's armament company, or kac, is known to many for their top tier, military issued rifles and parts. Brownells is proud to offer this line of knight's armament sr-15 mod 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5", 14.5" 16" & 18" lengths with a mod 2 gas block, and fitted with a kac 3 prong qdc suppressor compatible flash hider. The knight's armament sr-15 mod 2 complete upper receivers feature the urx m-lok handguards that each have 2 anti-rotation qd sling swivel sockets and ev mfg: knights armament. Find here reliable & durable gunsmith supplies including rifle upper receivers by Knights Armament. US supply MPN: 31963. Knights armament sr 15 e3 mod 2 upper receivers m lok ar 15 upper receiver cqb mod 2 11.5" urx 4 m lok. Distributor SKU: 100023386-100023386-11224.
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Stern Defense Ar 15 Sd Mod 4 9mm Upper Receiver M Lok Complete Sd Mod 4 9mm Upper Receiver 16.1in M Lok Complete Black US Specs & Supply
USD 544.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The stern defense sd mod 4 9mm upper receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 16.1 inch, 1-10 twist, melonited barrel, is free float in a 12in m-lok handguard attached to a 7075-t6 forged aluminum receiver. 16.1in barrel 12in m-lok free float handguard complete assembly with 9mm bolt and charging handle β½-36 muzzle thread pitch sd bu9 9mm bolt cartridge: 9mm nato included in the upper receiver is charging handle and the stern defense 9mm bolt which is compatible with both glock and colt smg magazines, has a melonite finish, and is works in c mfg: stern defense, llc. Find here reliable & durable gunsmith supplies including rifle upper receivers by Stern. US supply MPN: 015SD15INCHMOD4. Stern defense ar 15 sd mod 4 9mm upper receiver m lok complete sd mod 4 9mm upper receiver 16.1in m lok complete black. Distributor SKU: 100032661-100032661-11224.
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Aero Precision M4e1 Assembled Upper Receiver 5.56 Mid Pencil Length M4e1 Assembled Gen 2 Upper 16 Mid Pencil Length US Specs & Supply
USD 394.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Aero precision's m4e1 5.56mm pencil barrel mid-length upper receiver replicates the feature set of their standard m4e1 mid-length carbine with one "addition by subtraction": a narrow-diameter "pencil" barrel that saves weight. The result is ready to form the top half of a lightweight, fast-handling tactical carbine that doesn't skimp on extra features. The m4e1 5.56mm pencil barrel mid-length upper receiver comes fully assembled, lacking only a bolt/carrier group and charging handle, two components customizers typically replace any way. "mid-length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas veloci mfg: aero precision. Find here reliable & durable gunsmith supplies including rifle upper receivers by Aero Precision. US supply MPN: APAR640251M39. Aero precision m4e1 assembled upper receiver 5.56 mid pencil length m4e1 assembled gen 2 upper 16 mid pencil length. Distributor SKU: 100025510-100025507-11224.
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Aero Precision Ar 15/M16 Stripped Upper Receiver Black W/Markings US Specs & Supply
USD 49.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The aero precision stripped upper receiver is machined from 7075 aircraft aluminum for superior strength and features a super tough, type 3 hardcoat anodized finish for excellent wear resistance. Available with or without markings finish: matte black models available with laser-engraved t-marks and an american flag on the picatinny rail, or without markings. The aero precision stripped upper receiver is compatible with mil-spec ar lowers, standard components and features m4 feed ramps. Mfg: aero precision specs: 7075 t6 aluminum, hardcoat anodized, matte black. Uses .250" pivot and takedown pins. Available with black, fde/desert ,. Find here reliable & durable gunsmith supplies including rifle upper receivers by Aero Precision. US supply MPN: APAR501602C. Aero precision ar 15/m16 stripped upper receiver black w/markings. Distributor SKU: 100010612-100010612-11224.
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Fm Products Inc Ar 15 9mm Upper Receivers M Lok Assembled Ar 15 Fm 9 16" 9mm Upper Receiver M Lok Assembled Black US Specs & Supply
USD 425.00
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The foxtrot mike products 9mm upper receiver comes fully assembled and ready to drop on any pistol caliber lower receiver that uses glock magazines. With its full-length picatinny top rail and m-lok compatible handguard, the foxtrot mike 9mm upper offers plenty of mounting space for optics and other accessories. A unique interlocking connector between the upper receiver and handguard ensures the barrel nut will not work loose over time. Premium melonite-finished 4150 carbone steel button-rifled bore, 1-10" twist β½"-36 threaded muzzle ambidextrous, non-reciprocating forward charging handle bolt/carrier unit with hard melonite finish, to mfg: fm products inc. Find here reliable & durable gunsmith supplies including rifle upper receivers by FM. US supply MPN: FM916UR. Fm products inc ar 15 9mm upper receivers m lok assembled ar 15 fm 9 16" 9mm upper receiver m lok assembled black. Distributor SKU: 100024843-100024843-11224.
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Aero Precision M4e1 Assembled Upper Receiver .300 Blackout Black M4e1 Assembled Gen 2 Upper Receiver 16 Pistol Length US Specs & Supply
USD 430.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: 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. Find here reliable & durable gunsmith supplies including rifle upper receivers by Aero Precision. US supply MPN: APAR640251M14. Aero precision m4e1 assembled upper receiver .300 blackout black m4e1 assembled gen 2 upper receiver 16 pistol length. Distributor SKU: 100025514-100025512-11224.
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Stern Defense Ar 15 Sd Mod 5 9mm Upper Receivers M Lok Complete Sd Mod 5 9mm Upper Receiver 8.5in M Lok Complete Black US Specs & Supply
USD 486.99
(Indicative price - actual current price possibly lower)
Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The stern defense sd mod 5 9mm upper receivers are unique with handguards that extend beyond the end of the barrels. The 8.5" barreled upper has a 10" m-lok free float handguard, and the 6" barreled upper has an 8" m-lok free float handguard. To bring the muzzle out beyond the end of the handguard both uppers have sd hbc 9mm blast can installed. Both barrels have a 1-10 rate of twist, β½-36 muzzle thread pitch, and a melonite finish. 8.5" or 6" barrels m-lok free float handguard complete assembly with 9mm bolt and charging handle β½-36 muzzle thread pitch sd bu9 9mm bolt included in the upper receiv mfg: stern defense, llc. Find here reliable & durable gunsmith supplies including rifle upper receivers by Stern. US supply MPN: 015SD10INCHMOD5. Stern defense ar 15 sd mod 5 9mm upper receivers m lok complete sd mod 5 9mm upper receiver 8.5in m lok complete black. Distributor SKU: 100032662-100032662-11224.
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Sharps Bros Ar 15 Billet Upper Receiver Assembled US Specs & Supply
USD 231.20
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The sharps bros. Ar-15 billet upper receiver is machined from 7075-t6 aluminum and features a forward assist, but does not including a dust cover to allow users a chance to further customize their build. Mil-spec type iii hardcoat anodized with additional interior lubricity coating works with standard ar-15 calibers fits with most any receiver, especially sharps bros. Lower receivers forward assist installed weighs 9 oz the sharps bros. Receiver is meant for builds in the .223, 5.56, .300 blk, and 6.5 grendel calibers. The port opening is not large enough for 450 bushmaster, 458 socom, or 50 beowulf calibers. Mfg: sharps bros. Find here reliable & durable gunsmith supplies including rifle upper receivers by Sharps. US supply MPN: SBUR02. Sharps bros ar 15 billet upper receiver assembled. Distributor SKU: 100027174-100027174-11224.
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Double Star Ar 15 16" Ds 4 Barreled Upper With Low Profile Gas Block Ar 15 16" Ds 4 Barreled Upper W/ Low Profile Gas Block US Specs & Supply
USD 199.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Double star upper with 16" ds-4 barrel, ready to be your next build's foundation. Ds-4 barrel features a 1-9 twist, m4 feedramps and a matte black, phosphate finish. Barrel is chambered in 5.56x45mm nato, and does not have chrome lining. Flat top upper receiver is ready for the attachment of picatinny accessories and barrel. Carbine gas tube and barrel assembly are ready for your choice of handguard and muzzle device. Muzzle is threaded β½-28, for attachment of standard ar-15 devices. Low profile gas block installs onto the barrels .750" od gas shoulder. Upper features standard gi barrel nut. Does not include: bolt car mfg: double star specs: fits, standard ar-15/m16 components. Does not include: bolt carrier group, charging handle, handguard, muzzle device or crush washer. Find here reliable & durable gunsmith supplies including rifle upper receivers by Double Star. US supply MPN: ARBUS102. Double star ar 15 16" ds 4 barreled upper with low profile gas block ar 15 16" ds 4 barreled upper w/ low profile gas block. Distributor SKU: 100016898-100016898-11224.
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Red X Arms Ar 15 7.5" Rxa15 Mod Upper Receiver Ar15/M16 7.5" Rxa15 Ss Mod Upper Receiver US Specs & Supply
USD 249.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Upper receiver assemblies complete with barrel, gas block and handguard installed. These upper receivers feature 416r stainless steel barrels, with 1-9 twists and chambered in 5.56mm. Barrel extensions and upper receiver include m4 feedramps. Upper receiver is forged 7075-t6 aluminum and has t-marks. M4 and 7.5" models feature stainless steel a2 flash hiders, 1/2-28 threads, modular handguard compatible with magpul rails and .750" gas blocks. All upper receivers do not include a charging handle or bolt carrier group.All nfa rules apply. Mfg: red x arms. Find here reliable & durable gunsmith supplies including rifle upper receivers by Red X. US supply MPN: 100-013-602. Red x arms ar 15 7.5" rxa15 mod upper receiver ar15/m16 7.5" rxa15 ss mod upper receiver. Distributor SKU: 100013602-100013602-11224.
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Primary Weapons Ar 15 Mk1 Mod 1 M Upper Receiver Assembly 223 Wylde M Lok Mk114 Mod 1 M Upper Receiver 14.5 Barrel .223 Wylde US Specs & Supply
USD 892.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The pws mk1 mod 1-m line of upper receivers feature the pws long stroke piston system. Internally, this line offers the tried and true system that pws owners have grown to know and love. Featuring a free-float mlok handguard, forward assist controls, and a more true to mil-spec design, the mk1 mod 1-m line is a go-to for not only civilians, but also law enforcement. With the fully forged upper, the mk1 mod 1-m is a no-nonsense tool for when you need a high value option that is relentless and unstoppable. The shortest available option in the mk1 mod 1-m series, the mk107 is based off of the first firearm developed by pws. Known as "the diablo", the mk107 was designed to rep mfg: primary weapons. Find here reliable & durable gunsmith supplies including rifle upper receivers by Primary. US supply MPN: 18M114UA0B. Primary weapons ar 15 mk1 mod 1 m upper receiver assembly 223 wylde m lok mk114 mod 1 m upper receiver 14.5 barrel .223 wylde. Distributor SKU: 100031914-100031912-11224.
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V Seven Weapon Systems Ar 15 Upper Receiver Lithium Aluminum Blk US Specs & Supply
USD 338.53
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Billet 2055 lithium/aluminum ar-15 upper receiver type iii hardcoat anodized weighs 5.8 oz advanced lithium/aluminum alloy is lighter, stronger, more rigid, & has greater corrosion resistance than standard 7075 t6 aluminum v seven recommends all pins, springs, screws, & components to be installed with a quality lubricating oil/grease. Enlightened 2055 upper is not compatible with geissele mk8 rails without minor fitting of the rail to the upper. Mfg: v seven weapon systems. Find here reliable & durable gunsmith supplies including rifle upper receivers by V Seven. US supply MPN: ENLIURLIT. V seven weapon systems ar 15 upper receiver lithium aluminum blk. Distributor SKU: 100500003-100500003-11224.
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Geissele Automatics Ar 15 Colt Clone Complete Upper Receiver Group Improved (Urgi) Ar 15 Colt Clone Urgi Complete Pinned/Welded US Specs & Supply
USD 1,499.00
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The geissele urgi ar-15 upper receiver is an exact clone of the "upper receiver group improved" currently going into service with the united states army special operations command (usasoc). Brownells offers the geissele urgi upper for the colt clones in a complete upper receiver group, one option being pinned and welded, and one that is not. Geissele has installed a 14.5" daniel defense barrel optimized to handle the full rigors of the new m855a1 (ab57) ammunition, with the contract surefire sf4p four-prong flash hider pinned up front. Functioning as a highly effective flash suppressor, the urgi's contract sf4p four-prong flash hider also serves as a rock-solid a mfg: geissele automatics llc. Find here reliable & durable gunsmith supplies including rifle upper receivers by Geissele. US supply MPN: 5857. Geissele automatics ar 15 colt clone complete upper receiver group improved (urgi) ar 15 colt clone urgi complete pinned/welded. Distributor SKU: 100031174-100031174-11224.
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Item on this page: Aero Precision Ar 15 M4e1 Stripped Upper Receiver 5.56mm Ar 15 M4e1 Stripped Upper Receiver Black 5.56mm US Specs & Supply
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