UPPERS

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The FoldAR complete upper is ideal for your next build by giving you all the advantages of our Type II technology or to upgrade your favorite lower! Stocked right out of the box with a precision barrel and the overall quality you would expect from the most well-built ARs.Type:  CompleteCaliber:  223..
$861.90
Availability:Out Of Stock
The Adams Arms PZ model is the perfect platform for shooters who enjoy building and customizing their rifle. The PZ model includes our Picatinny Railed Gas Block with 3 adjustable settings and M4 furniture. The PZ is your Piston Driven foundation, ready to be customized to fit your needs. Features ..
$468.19
Availability:2
Adams Arms FGAA01235 P1  
223 Rem,5.56 NATO 16
Adams Arms'' P1 is the introductory model to the P-Series. This model features an ergonomic, mid-length Magpul MOE handguard and the standard adjustable Picatinny railed piston system. The P1 is perfect for any and all AR enthusiasts looking for a self-cleaning, piston driven upper that provides sup..
$530.62
Availability:3
The Adams Arms PZ model is the perfect platform for shooters who enjoy building and customizing their rifle. The PZ model includes our Picatinny Railed Gas Block with 3 adjustable settings and M4 furniture. The PZ is your Piston Driven foundation, ready to be customized to fit your needs. Features ..
$468.19
Availability:1
Adcor Defense 2014000E B.E.A.R. Elite AR-15 Piston Upper Assy. With sights
Adcor uppers attach to any mil-spec lower, making it easy to upgrade your existing gas-impingement AR to a free-floating piston system. These complete uppers attach easily to the lower receiver, and one upper features folding Magpul front and rear sights. It is manufactured in the USA.Type:  Complet..
$1,520.53
Availability:Out Of Stock
Adv Armament 102129 Blackout 300AAC 12.5
The Advanced Armament 300 AAC Blackout 12.5" Upper is a a complete receiver assembly. It is a 12.5" Nitrided 1:7" twist barrel that is also threaded at 5/8-24. It has an AAC 51T Blackout Flash Hider, "Full Auto" BCG, and KAC URX Rail. It is ready to drop onto your AR15/M16/M4 lower with Mil-Spec pus..
$882.25
Availability:1
Advanced Armament 102780 5.56 NATO 223 Rem/5.56 NATO 16
The complete 5.56NATO upper receiver assembly from Advanced Armament features a 16" Nitrided 1:7 Twist Barrel that is threaded 5/8-24. It has a AAC 51T BLACKOUT Flash Hider and "Full Auto" BCG. It has a Mid-Length Gas System and KAC URX Rail. IT is ready to drop onto your AR15/M16/M4 lower. It works..
$1,045.08
Availability:Out Of Stock
This Complete Upper includes Aero Precision''s Gen 2 Enhanced Handguard. Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a profile for the picatinny top rail.Type:  Complete UpperCaliber:  308 Win,7.62 NATOSights:  None, Opt..
$526.48
Availability:8
Aero''s M5E1 Upper Receiver is a one-piece design combining the handguard mounting platform with the upper itself. Aero has condensed the parts needed to mount a free-floated handguard to 8 screws. Since the handguard mounting surface and upper are of the same forging it a stronger system, but has a..
$163.99
Availability:15
The Aero Precision XL Upper is forged from 7075-T6 aluminum and features an enlarged ejection port. The XL Upper Receiver is your best choice when you''re planning a build to send big rounds down range. Features- Port door opening enlarged to enhance larger diameter brass ejection (.450 Bushmaster, ..
$93.16
Availability:1
The AR15 Stripped Upper Receiver is one of our most popular products. This stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Features- Port door opening have been enl..
$70.63
Availability:14
ATI 410 Upper Kit 18" 410 ga, Upper 410 Buffer & Spring, 5rd magazine.Caliber:  410 GaBarrel Length:  18"Barrel Length Range:  18.00" to 18.99"..
$444.62
Availability:Out Of Stock
ATI GOMX556S Omni Maxx 5.56x45 16
Omni Hybrid Maxx features a fully-patented metal reinforced polymer upper receiver along with a fully-patented metal reinforced polymer lower receiver. The Omni Hybrid lower features a patented hammer and trigger pin retainment system, preventing movement from the hammer and trigger pin during firi..
$537.03
Availability:Out Of Stock
The Bushmaster XM-15 Minimalist-SD is built on the versatile Bushmaster modular MSR upper platform. The barreled upper receivers can be used on existing MSR-type lower receivers, all receivers feature integral brass deflectors. The 4150 chome-moly-vanadiem steel barrels feature hard-chrome lining in..
$681.51
Availability:16
The Bushmaster XM-15 Minimalist-SD is built on the versatile Bushmaster modular MSR upper platform. The barreled upper receivers can be used on existing MSR-type lower receivers, all receivers feature integral brass deflectors . The 4150 chome-moly-vanadiem steel barrels feature hard-chrome lining i..
$681.51
Availability:2
The Bushmaster XM-15 ORC is built on the versatile Bushmaster modular MSR upper platform. The barreled upper receivers can be used on existing MSR-type lower receivers, all receivers feature integral brass deflectors. The 4150 chome-moly-vanadiem steel barrels feature hard-chrome lining in both bore..
$578.45
Availability:2
Bushmaster 91702 Flattop Complete Upper Receiver Assembly 450 Bushmaster 20
Bushmaster''s complete upper allows you to add the hard-hitting punch of the 450 Bushmaster to your Bushmaster lower receiver instantly. The AR-type gas operating system drastically reduces recoil for excellent second shot control. This flattop upper includes a 20" heavy barrel with a hard-chrome li..
$570.71
Availability:43
Bushmaster 91820 A3 AR-15 Complete Upper 7.62x39mm 16
This is a complete upper with 16" chrome lined M4 profile barrel.Type:  Complete Gas ImpingementCaliber:  7.62x39mmSights:  AR-15Barrel Length:  16.0"Barrel Material:  SteelBarrel Description:  M4 ProfileBarrel Finish:  BlackReceiver Description:  A3Receiver Finish:  BlackHandguards:  SyntheticHandg..
$704.96
Availability:Out Of Stock
Bushmaster 91822 A3 AR-15 Complete Upper 223 /5.56 16
This popular complete upper features a light weight, chrome lined 16" barrel in a M4 "cutout" profile, designed to mount the M203 Grenade Launcher.Type:  Complete Gas ImpingementCaliber:  223 Rem,5.56 NATOSights:  A2 FrontBarrel Length:  16"Barrel Material:  SteelBarrel Description:  M4 ProfileBarre..
$500.03
Availability:28
The Bushmaster XM-15 is built on the versatile Bushmaster modular MSR upper platform. The barreled upper receivers can be used on existing MSR-type lower receivers, all receivers feature integral brass deflectors. The 4150 chome-moly-vanadiem steel barrels feature hard-chrome lining in both bore and..
$566.79
Availability:In Stock
Bushmaster 92194 A3 AR-15 Complete Upper ORC Flattop 223 Rem/5.56 NATO 16
The Optics Ready Carbine upper has a 16" 4150 chrome-moly-vanadium barrel with an M4 profile and hard chrome lining in bore and chamber for extended barrel life. The forged 7075 T6 aluminum flattop receiver is lightweight and has a hard anodized black finish. This model has a milled low-profile gas ..
$494.45
Availability:10
Bushmaster 92316 Dissipator A3 AR-15 Complete Upper 223 Rem/5.56 16
This is a complete upper. In the unique Dissipator, gas block placement is at the rifle length position and uses rifle length handguards on a carbine length barrel. Model offers reliable cycling, the accuaracy of the full sight radius, and cool operation. This upper comes complete with a carry handl..
$502.70
Availability:Out Of Stock
Bushmaster 92336 A3 AR-15 Complete Upper 223 Rem/5.56 NATO 16
This highly accessorized Upper Receiver/Barrel Assembly features a fluted, 16" chrome-lined chrome moly steel barrel with a milled gas block. The flattop upper receiver and modular four-rail forend with rail covers provide all the Picatinny rails necessary for mounting optics and accessories. The ..
$688.62
Availability:Out Of Stock
Bushmaster 92450 A3 AR-15 Complete Upper Predator 223 Rem/5.56 NATO 20
Adapted from the very accurate and successful 24" Varminter, the Predator Complete Upper Receiver/Barrel Assembly''s 20" Fluted Extra Heavy Barrel is button rifled 1 x 8" to stabilize the heavier 69-77 grain bullets that a predator hunter/caller would choose for bigger varmints and predators. This s..
$605.24
Availability:17
Bushmaster 92546 A2 Post Ban AR-15 Complete Upper 223 Rem/5.56 20
This complete upper Bushmaster model offers features that make it legal for sale in states where restrictions similar to the Assault Weapons Ban of 1994 are still in place. The Bayonet Lug is milled off on this Post-Ban model.Type:  Complete Gas ImpingementCaliber:  223 Remington/5.56 NATOSights:  ..
$471.72
Availability:Out Of Stock
Bushmaster 92820 A3 AR-15 Complete Upper Varminter 223 Rem/5.56 NATO 24
This complete upper assembly features a 24" Fluted Extra Heavy Barrel in 5.56mm/.223 Rem. caliber with 11 degree competition crown; heavyweight 1" diameter under the handguard; custom match hybrid chamber with a tighter SAAMI Spec headspace from the shoulder of the chamber to the bolt face, and long..
$579.59
Availability:Out Of Stock
The Charles Daly AR .410 Upper allows any AR-15 to be converted to a .410 shotgun. The CD .410 Upper features a picatinny quad rail forend and comes with a 5rd magazine.Type:  CompleteCaliber:  410 GaSights:  Adj Flip Up Front & RearBarrel Length:  19"Barrel Finish:  BlackHandguard Finish:  BlackBar..
$319.06
Availability:Out Of Stock
Chiappa Firearms 500093 M4-22 Gen-II Pro Carbine Conversion 22 LR Black Parkerized Steel 18.50
The Gen-II Pro Series carbine upper is an evolution of the M4 model, adding a 7.8" free float aluminium forend with 8 position Picatinny rail. All other characteristics remain unvaried: 18.5" heavy match, parkerized barrel, steel bolt, MIL-SPEC components. Fully functional with select fire lowers.Ty..
$283.27
Availability:1
Chiappa Firearms 500095 M4-22 Gen-II Pro Rifle Conversion 22 LR 18.50
The Gen-II Pro Series Rifle upper is an evolution of the M4 model, adding an 11.8" free float aluminium forend with 8 position Picatinny rail. All other characteristics remain unvaried: 18.5" heavy match, parkerized barrel, steel bolt, Mil-Spec components. Fully functional with select fire lowersTyp..
$294.96
Availability:2
Chiappa MKS 500057 MFour Complete AR-15 Upper 22 Long Rifle 16
This is an M4 22 LR rimfire Upper Conversion Kit, Mil-Spec size for the use with AR-15/M16 firearms. The kit features complete upper with a barrel designed specifically for 22LR ammo. It includes all necessary parts for converting your existing caliber to the inexpensive 22LR rimfire. The conversion..
$304.69
Availability:Out Of Stock
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