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Upper Receivers (31 Items)

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  • Bushmaster A3 AR-15 Complete Upper ORC Flattop 223 Rem/5.56 NATO  - 16

    Our Price: $459.99

    MSRP: $599.00 | You Save: $139.01

    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 block and a target crown.
  • Bushmaster A3 AR-15 Complete Upper Predator 223 Rem/5.56 NATO  - 20

    Our Price: $549.99

    MSRP: $739.00 | You Save: $189.01

    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 superb barrel features fluting for increased cooling and weight reduction; an 11 degree competition crown; 1" diameter heavy profile under the handguard; custom match hybrid chamber with a tighter SAAMI Spec headspace from the shoulder of the chamber to the bolt face, and longer chamber throat or "Leade". This chamber accommodates 5.56mm ammunition without developing higher pressures encountered when firing 5.56mm ammo in a .223 chamber with shorter "Leade" (both calibers can be used safely). This Upper is sold complete with Bolt, Bolt Carrier and Charging Handle to ensure positive lockup between bolt and barrel extension. The Predator Upper also features a Vented Tubular Aluminum Free-Float Forend with Bipod Stud (free-floats the barrel from the barrel nut forward) and B.M.A.S. 1/2" Mini-Risers to add scope height for correct sight picture and comfortable cheek weld.
  • Daniel Defense M4 URG 223 Rem/5.56 NATO  - 16

    Our Price: $1,015.55

    MSRP: $1,069.00

    Daniel Defense's M4 Carbine V11 Upper Receiver Group was designed for shooters who prefer the benefits of the KeyMod system integrated in the SLiM Rail (Slim Lightweight Modular). The SLiM Rail 15.0 offers incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability. Its long, 15" rail gives operators the option to have the support hand extended out close to the muzzle allowing them to drive the gun more precisely and prevents over travel when transitioning between multiple targets. This combined with a mid-length gas system, which is known to have a smoother recoil impulse, allows for quick, but precise rapid fire. An uninterrupted picatinny rail on top and KeyMod attachment at 3, 6, and 9 o'clock, ensures plenty of real estate for optics and accessories and allows for maximum sight radius for accurate shooting with rail mounted iron sights. The DDM4v11 URG is equipped with a free-floating, cold hammer forged, 16" Government profile barrel and a bolt carrier group and charging handle.
  • Bravo Large -STK-MOD BCM Multi-Caliber   - Black Finish

    Our Price: $119.00

    MSRP: $149.00 | You Save: $30.00

    Bravo's BCM M4 Upper Receiver Assembly is precision machined to correct Mil-Specs from 7075 T6 forgings extension, providing the user with superior strength when dropped or when mortaring malfunction clearance drills. It has Mil-Std 1913 Rail for mounting optics and accessories, Mil-Spec forward assist with heat treated tool steel pawl, press fit and pinned cap, and a hard coat anodized finish.
  • Bushmaster 450 Bushmaster Pre Ban 450 Bushmaster - 16

    Our Price: $519.99

    MSRP: $689.95 | You Save: $169.96

    This Bushmaster upper receiver is made of carbon steel with carbine length hand guards. Its barrel is parkerized black and the receiver and hand guard are finished black teflon.
  • Bushmaster Flattop Complete Upper Receiver Assembly 450 Bushmaster  - 20

    Our Price: $519.99

    MSRP: $699.95 | You Save: $179.96

    Bushmasters complete upper allows you to add the hardhitting punch of the 450 Bushmaster to your Bushmaster lower receiver instantly. The ARtype gas operating system drastically reduces recoil for excellent second shot control. This flattop upper includes a 20" heavy barrel with a hardchrome lined bore and chamber for exceptional durability and 1:24" twist optimized for the .450 bullet. The aluminum forearm freefloats the barrel for optimum accuracy. It includes the bolt carrier assembly and a 5-round 450 Bushmaster magazine.
  • Bushmaster Flat Top M4 Pre Ban 300 AAC Blackout/7.62x39mm  - 16

    Our Price: $529.99

    MSRP: $709.00 | You Save: $179.01

    This Bushmaster 300 Blackout upper receiver is made of carbon steel and finished in black teflon. Its barrel is finish in parkerized black. Included is rifle length hand guards.
  • Bushmaster Complete Upper Assembly Minimalist-SQ 223 Remington/5.56 NATO  - 16

    Our Price: $619.99

    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 both bore and chamber for extended barrel life.The XM-15 5.56 features a free-floated rifle length SquareDrop handguard, AAC Blackout flash hider and a lightweight gas block.
  • out of stock
    Bushmaster A3 AR-15 Complete Upper 223 Rem/5.56 NATO - 16

    Our Price: $469.99

    MSRP: $599.96 | You Save: $129.96

    This popular complete upper features a light weight chrome lined 16" barrel in a M4 "cutout" profile designed to mount the M203 Grenade Launcher.
  • out of stock
    Daniel Defense DDMK18 223 Remington/5.56 NATO  - 10.3

    Our Price: $1,179.90

    MSRP: $1,242.00

    Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today. The M4 URG, MK18 comes complete with a bolt carrier group, charging handle, 10.3 inch Cold Hammer Forged Barrel, RIS II MK18 Rail System that is finished in Flat Dark Earth, and a Daniel Defense low profile gas block.
  • out of stock
    Adams Arms  PZ 5.56 x 45 mm Nato - 16

    Our Price: $439.99

    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 full-auto rated 1 piece w/integral piston strike force bolt carrier; Carbine, short stroke piston operated gas system length, and 0.750" gas block diameter.
  • out of stock
    Adams Arms  PZ 5.56 x 45 mm Nato  - 11.5

    Our Price: $439.99

    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 full-auto rated 1 piece w/integral piston strike force bolt carrier; Carbine, short stroke piston operated gas system length, and 0.750" gas block diameter.
  • out of stock
    Adams Arms  P1 223 Remington/5.56 NATO  - 16

    Our Price: $479.99

    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 superior performance. The bolt carrier is full auto-rated, one-piece with an integral piston strike face. The 16" barrel has a government profile, A2 flash hider, and a QPQ melonite/black nitride finish. It has an optic ready, forged A4 flattop receiver, a 0.750" gas block diameter, and M4 feed ramps. This upper receiver weighs 4.46 lbs.
  • out of stock
    Aero Precision New 308 Winchester/7.62 NATO  - 16.0

    Our Price: $469.99

    This item does not include the bolt carrier group or the charging handle.
  • out of stock
    Aero Precision M5E1 308 Winchester/7.62 NATO  - 16

    Our Price: $479.99

    This item does not include the bolt carrier group or the charging handle.
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