D.S. Arms Ar 15 Flattop Upper Receiver W/Cover & Forward Assist Upper Receiver W/Cover & Fwd Assist US Specs & Supply
Reliable Rifle Upper Receivers by DS in US specification & supply
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US gunsmith supply: 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. Find here reliable & durable gunsmith supplies including rifle upper receivers by DS. US supply MPN: DSZM4R2C. D.s. arms ar 15 flattop upper receiver w/cover & forward assist upper receiver w/cover & fwd assist. Distributor SKU: 274000021-274000021-11224.
 Indicative Price: USD 102.99
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Aero Precision M4e1 Assembled Upper Receiver 5.56 Mid Length M4e1 Assembled Gen 2 Upper Receiver 16 Mid Length US Specs & Supply
USD 390.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Aero precision's m4e1 5.56mm mid-length upper receiver comes fully assembled, lacking only a bolt/carrier group and charging handle, the two components most often replaced by customizers. "mid-length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5" or civilian 16" barrel (see gun tech note below). The core of the m4e1 5.56mm mid-length upper receiver is aero's forged m4e1 receiver that combines the looks of a machined receiver with "mil-spec" parts compatibility (including bcg mfg: aero precision. Find here reliable & durable gunsmith supplies including rifle upper receivers by Aero Precision. US supply MPN: APAR640251M7. Aero precision m4e1 assembled upper receiver 5.56 mid length m4e1 assembled gen 2 upper receiver 16 mid length. Distributor SKU: 100025509-100025506-11224.
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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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Cross Machine Tool Co. Ar 15/M16 Billet Upper Receiver US Specs & Supply
USD 209.95
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Machined from 7075 t6 aluminum billet, the ultra precision upper receiver from cross machine tool is 65% stronger and more rigid than standard 6061 aluminum receivers. Wall thickness has also been increased for added rigidity. Type iii hardcoat anodized finish for added surface strength, abrasion resistance, and corrosion resistance. Upper is compatible with mil-spec parts and also with most aftermarket handguards and rail systems. Features m4-type feed ramps and a flattop 1913 picatinny rail with alphanumeric t-markings stamped into the slots. Both dust cover port and forward assist are machined into the receiver. Does not come with dust cover or forward assist assembly. Mfg: cross machine tool co., inc. Specs: 7075 t6 billet aluminum, hardcoat anodized, matte black. .250" (6.3mm) diameter pivot and takedown pin holes. Find here reliable & durable gunsmith supplies including rifle upper receivers by Cross. US supply MPN: UPUR1. Cross machine tool co. ar 15/m16 billet upper receiver. Distributor SKU: 100013316-100013316-11224.
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Daniel Defense Ddm4v11 16" 5.56mm Nato Upper Receiver Black Ddm4v11 16" 5.56mm Nato 1 7 15" Slim Rail Upper US Specs & Supply
USD 987.00
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The daniel defense ddm4v11 carbine upper receiver was designed for shooters who prefer to run the new slim rail with keymod technology. The new 15" slim rail has incredible weight savings while maintaining strength and durability, but still allowing users to have their support hand extended out to drive the gun more precisely. The ddm4v11 upper receiver features a hard coat anodized mil-spec aluminum upper with m4 feed ramps and a hammer forged chrome moly 16" barrel in a 1-7 twist with a government profile. Threaded muzzle: 1/2-28 tpi pinned low profile gas block machined from 4140 hardened steel, mid-length daniel defense 17-4 ph stainless steel mfg: daniel defense. Find here reliable & durable gunsmith supplies including rifle upper receivers by Daniel. US supply MPN: 2.3151E+11. Daniel defense ddm4v11 16" 5.56mm nato upper receiver black ddm4v11 16" 5.56mm nato 1 7 15" slim rail upper. Distributor SKU: 100024474-100024474-11224.
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Double Star Ar 15 Stripped Ds4 Upper Ar 15 16" Ds 4 Upper W/ Lpgb No Barrel Nut 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. Low profile gas block installs onto the barrels .750" od gas shoulder. Mfg: double star. Find here reliable & durable gunsmith supplies including rifle upper receivers by Double Star. US supply MPN: ARBUS105. Double star ar 15 stripped ds4 upper ar 15 16" ds 4 upper w/ lpgb no barrel nut. Distributor SKU: 100017657-100017657-11224.
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Yankee Hill Machine Co. Ar 15 5.56 16" Black Diamond Specter Upper Receiver Black Diamond Specter Xl Upper Receiver US Specs & Supply
USD 1,112.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Flattop upper comes with high-end custom features and accessories already installed, ready to snap on the mil-spec lower receiver of your choice. Comes fully assembled with bolt/carrier, charging handle, tactical handguard, gas block, and barrel.Features a free-floated diamond handguard with uniquely-patterned holes machined between the rails to reduce weight and enhance barrel cooling. Four full-length mil-std 1913 picatinny rails have individually marked slots for quick reference. The handguard bridges the gap to the front of the receiver to form one continuous, uninterrupted top rail; extends over the low-profile gas block for a smooth, streamlined appearance. Specter upper features sp mfg: yankee hill machine co., inc. Specs: receiver 7075 t6 aluminum alloy, mil-spec type iii hardcoat anodized finish, matte black. Barrel chrome-moly vanadium steel alloy, heat treated to rc 25-32, matte black finish. Chrome-lined. 16" (40.6cm) long. 1-9" twist, chambered for 5.56mm nato. Handguard &ndas. Find here reliable & durable gunsmith supplies including rifle upper receivers by Yankee Hill. US supply MPN: YHM78209. Yankee hill machine co. ar 15 5.56 16" black diamond specter upper receiver black diamond specter xl upper receiver. Distributor SKU: 100010668-100005754-11224.
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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 Specs & Supply
USD 399.99
(Indicative price - actual current price possibly lower)
Rifle Upper Receivers US Specs & Supply
US gunsmith supply: 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. Find here reliable & durable gunsmith supplies including rifle upper receivers by Colt. US supply MPN: 160-000-446. Colt ar 15 m4 assembled upper receiver 5.56mm ar 15 m4 upper receiver 5.56mm no bcg charging handle. Distributor SKU: 160000446-160000446-11224.
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Brownells Ar 15 M16 A1 Upper Receiver Brn 16a1 M16a1 Upper Receiver Black US Specs & Supply
USD 150.00
(Indicative price - actual current price possibly lower)
Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Designed in conjunction with nodak spud, the brownells m16a1 upper receiver matches the features of the original m16a1 receiver. Perfect for a "retro" or reproduction build, these uppers precisely mirror the original profile. This match is only possible by utilizing forgings with the proper profile built-in. Features specific to the brownells m16a1 upper receiver are the original a1 profile, with no shell deflector, a1 rear sight housing and proper carry handle contours. The upper starts off as a 7075 t6 aluminum forging, then is machined to mil-spec dimensions. Once machined, the upper is finished with a matte gray or matte black hard anodized finish. The gray finish mim mfg: brownells specs: fits standard ar-15 components. Finish: matte black hard anodized. Profile: m16a1. Does not have m4 feedramps. Find here reliable & durable gunsmith supplies including rifle upper receivers by Brownells. US supply MPN: 080-001-303. Brownells ar 15 m16 a1 upper receiver brn 16a1 m16a1 upper receiver black. Distributor SKU: 080001303-080001303-11224.
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Brownells Ar 15 Gen 2 Complete Upper Receiver Black M Lok 5.56 US Specs & Supply
USD 259.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Brownells upped its offerings to custom ar-15 builders with an all-new brownells gen 2 complete ar-15 upper receiver, which provides consumers with all of the elements needed to have a fully functioning upper straight from the box. The brownells gen 2 complete ar-15 upper receiver features a standard flattop a3 profile and is built with a standard m4-profile barrel machined from 416r steel. The barrel is surrounded by a free-float handguard measuring 10 inches long and provides m-lok accessory-attachment points for added customization options. The receiver is machined from 7075 aluminum and features m4-style feedramps and a standard a2 birdcage flash hider. Barrel length: 16 mfg: brownells. Find here reliable & durable gunsmith supplies including rifle upper receivers by Brownells. US supply MPN: BRO556MSML10. Brownells ar 15 gen 2 complete upper receiver black m lok 5.56. Distributor SKU: 100027148-100027148-11224.
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Daniel Defense Mk12 Spr 18" 5.56mm Nato Upper Receiver Black Mk12 Spr 18" 5.56mm Nato 1 7 12" Ddm4 Rail Upper US Specs & Supply
USD 1,326.00
(Indicative price - actual current price possibly lower)
Rifle Upper Receivers US Specs & Supply
US gunsmith supply: The mk12 upper receiver from daniel defense is built around an 18" stainless steel barrel, engineered with a rifle-length direct impingement gas system and utilizing the mk12 gas block, which is built to crane specifications for ussocom. The daniel defense mk12 upper receiver features a rugged hard coat anodized mil-spec aluminum upper with a hammer forged stainless steel 18" barrel in a 1-7 twist with a mk12 profile. Mk12 low profile gas block machined from 416 hardened steel, rifle length daniel defense 17-4 ph stainless steel flash suppressor chrome lined m16 profile bolt carrier group 6061-t6 hard coat anodized 12" daniel defense mfg: daniel defense. Find here reliable & durable gunsmith supplies including rifle upper receivers by Daniel. US supply MPN: 2314210035. Daniel defense mk12 spr 18" 5.56mm nato upper receiver black mk12 spr 18" 5.56mm nato 1 7 12" ddm4 rail upper. Distributor SKU: 100024477-100024477-11224.
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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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Brownells Ar 15 Complete Upper Receiver Black Keymod 300 Blk US Specs & Supply
USD 425.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: This brownells' exclusive complete ar 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, bolt carrier group, charging handle, forward assist, ejection port cover and phosphate finish help to complete this outstanding package. This complete a3 upper receiver will attach to almost any standard ar-15 lower receiver. Mfg: brownells. Find here reliable & durable gunsmith supplies including rifle upper receivers by Brownells. US supply MPN: BRO300MS16KM10. Brownells ar 15 complete upper receiver black keymod 300 blk. Distributor SKU: 100023018-100023018-11224.
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Brownells Ar 15 M4 Stripped Upper Receiver Black US Specs & Supply
USD 42.99
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Rifle Upper Receivers US Specs & Supply
US gunsmith supply: Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into quality, rather than bells and whistles. The brownells m4 stripped upper receiver is that component, the perfect starting point for many an ar-15 build. Starting with a 7075 t6 aluminum forging, our stripped m4 flattop upper is precision machined to final dimensions that make it compatible with the multitude of available "mil-spec" ar-15 components. It has a matte black, type iii hardcoat anodized finish, mirroring the military requirement. Machined from 7075-t6 aluminum forging matte black type iii hardcoat anodize mfg: brownells. Find here reliable & durable gunsmith supplies including rifle upper receivers by Brownells. US supply MPN: 078-000-371. Brownells ar 15 m4 stripped upper receiver black. Distributor SKU: 078000371-078000371-11224.
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Item on this page: D.S. Arms Ar 15 Flattop Upper Receiver W/Cover & Forward Assist Upper Receiver W/Cover & Fwd Assist US Specs & Supply
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