Upper Receiver Parts

Geissele Automatics

Geissele Automatics, Super Duty MOD1, Complete Upper 11.5"

The Super Duty® MOD1 is the current evolution of the Super Duty® platform, incorporating continuous design development to provide superior ergonomics and modularity while maintaining the legendary balance of performance and reliability...

KAK

KAK Industry Low Profile Gas Block .750

750 LOW PROFILE GAS BLOCK GAS BLOCKS ARE MACHINED IN HOUSE FROM 4140 STEEL FINISHED WITH A BLASTED MANGANESE PHOSPHATE FINISH. KNURLED SET SCREWS INCLUDED GAS TUBE ROLL PIN INCLUDED .425 set screw spacing

KAK

KAK Industry AR-15 Upper Completion Kit

AR-15 Forward Assist Kit- Complete • Complete forward assist button with pawl (claw) • Forward assist helical spring • Forward assist roll pin • Ejection port cover • Ejection port rod • Ejection port C clip • Ejection...

KAK

KAK Industry K-SPEC Enhanced AR15 Bolt- 5.56/ 300 BLK, Dual Ejector, Phosphate

The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts. Ejector holes are centered on the lugs to avoid any reduction in strength of the bolt. The dual ejector system increases the ejection reliability and...

KAK

KAK Industry K-SPEC Enhanced AR15 BCG- 5.56/ 300 Blackout, Dual Ejector, Down Vent, Sand Cuts, Chrome Lined Phosphate

Patent Pending The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR-15 style firearm no matter if you are running suppressed or unsuppressed, and regardless of conditions. The K-SPEC is a truly plug and play BCG...

KAK

KAK Industry XM177 Flash Hider- Clone Correct

Integrated gernade ring gives the retro look you desire without hassle or extra parts Can be used with a crush washer that's hidden in the grenade ring counter bore and not show once installed Design inspired by the XM-177 Moderator, this extended flash...

KAK

KAK Industry A1 Flash Hider- 1/2-28

Retro A1 Flash hider 1/2-28 • Overall Length- 1.750" • Weight- 2.03oz • Heat Treated for strength and durability • Phosphate Coated for corrosion resistance • Milled flats for easy installation • Fully Precision Machined in...

KAK

KAK Industry AR-15 Carrier Completion Kit Chrome

AR15 BCG CAM PIN 4140 steel, Swiss turned, heat treated, Hard Chrome finish Mil-Spec AR15 M16 556 BCG FIRING PIN Machined to the Mil-spec Print from High Qulity 8740 Steel, Precision ground, Properly heat treated, Chrome plated Material- High Quality...

KAK

KAK Industry K-SPEC Enhanced AR15 Bolt- 5.56/ 300 BLK, Dual Ejector, Chrome

The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts. Ejector holes are centered on the lugs to avoid any reduction in strength of the bolt. The dual ejector system increases the ejection reliability and...

KAK

KAK Industry K-SPEC Enhanced AR15 Carrier, Down Vent, Sand Cuts, Chrome Lined, Phosphate

Patent Pending KAK Industry K-SPEC AR15 Carrier This is the carrier with gas key only Carrier is cross-compatible, will work with any direct impingement AR15 bolt The K-SPEC BCG combines multiple key features focused on increasing the reliability of your...

Rosco Manufacturing

Rosco K9 16" Sauce Pack (5.56 NATO)

Rosco K9 16" Sauce Pack (5.56 NATO) The Rosco “Sauce Pack” bundles were created after direct requests from our customers to provide them with the key components needed for their carbine/ pistol builds at a great combined price. The result is...

Rosco Manufacturing

Rosco K9 13.95" Sauce Pack (5.56 NATO)

Rosco K9 13.95" Sauce Pack (5.56 NATO) The Rosco “Sauce Pack” bundles were created after direct requests from our customers to provide them with the key components needed for their carbine/ pistol builds at a great combined price. The result...

Rosco Manufacturing

Rosco K9 11.5" Sauce Pack (5.56 NATO)

Rosco K9 11.5" Sauce Pack (5.56 NATO) The Rosco “Sauce Pack” bundles were created after direct requests from our customers to provide them with the key components needed for their carbine/ pistol builds at a great combined price. The result...

Comstock Armory

Comstock Armory Compact Flash Hider, 5/8x24

Compact flash hider available in 1/2×28 and 5/8×24 threads to mount on your rifle and allows you to attach a suppressor that features a mount compatible with .900×24 muzzle devices. Allows for the quick attachment and removal of...

Comstock Armory

Comstock Armory Compact Flash Hider, 1/2x28

Compact flash hider available in 1/2×28 and 5/8×24 threads to mount on your rifle and allows you to attach a suppressor that features a mount compatible with .900×24 muzzle devices. Allows for the quick attachment and removal of...

KAK

KAK Compensator 5.56 1/2x28

KAK Industry, Compensator, 556NATO, Fits 1/2x28, Phosphate Finish, Black 1/2X28 Thread Pitch 1.750" Overall Length Heat Treated Phosphate Coated Milled Flats Crush Washer Not Included

KAK Industry AR-15 Carrier Completion Kit Phosphate

AR15 BCG CAM PIN 4140 steel, Swiss turned, heat treated, phosphate finish Mil-Spec AR15 M16 556 BCG FIRING PIN Machined to the Mil-spec Print from High Qulity 8740 Steel, Precision ground, Properly heat treated, Chrome plated Material- High Quality...

KAK Industry AR15 BCG- 5.56/ 300 Blackout, Full Chrome

KAK Industry Complete Chrome AR15 BCG, Heavy Chrome (Machine Gun Chrome Finish) M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, Chrome Finish, Heavy Chrome (Machine Gun Chrome...

KAK Industry K-SPEC Enhanced AR15 Carrier, Down Vent, Sand Cuts, NP3, Chrome Lined

Patent Pending The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or unsuppressed, and regardless of conditions. The K-SPEC is a truly plug and play BCG...

Ballistic Advantage

Ballistic Advantage Gas Tube - Rifle Length - Melonite

Ballistic Advantage, Gas Tube, Rifle-Length, Fits AR15, Melonite Finish, Black Warning Roll pin included Rifle length 15.125" Melonite Finish Product Description   Ballistic Advantage's melonite coated gas tubes offer increased heat...

Rearden

Rearden R2S, 1/2x28, Heat Treat, Square

Rearden R2S, 1/2x28, Heat Treat, Square (.40) The aesthetic of a bird cage that doubles as a great suppressor mount. The Rearden R2S is not only great as a flash hider, but it is also an incredible suppressor mount. The Rearden R2S is a short bird cage...

Bootleg Inc

Bootleg 5.56 Phosphate Complete Bolt Assembly Kit

Bootleg, 5.56 Phosphate Complete Bolt Assembly Cam Pin, Firing Pin and Retaining Pin, Phosphate Coated, Uses all Standard Mil Spec Components Fits with Bootleg adjustable gas carrier Contains 5.56 phosphate complete bolt, cam pin, firing pin, and...

Rearden

Rearden R2C, 1/2x28, Nitride, Square

Rearden R2C 1/2-28 Black Nitride (.375) The aesthetic of a partial ported bird cage that doubles as a great suppressor mount. The Rearden R2C is not only great as a flash hider, but it is also an incredible suppressor mount. The Rearden R2C is a...

Rearden

Rearden SPB, 1/2x28, .375, Nitride, Square

Rearden Mfg SPB Muzzle Brake, Black Nitride (1/2-28) The Rearden SPB is a single-port muzzle device and is compatible with Atlas, Atlas XL and Plan B mount interfaces. The SPB is constructed from 17-4 PH H900 and black nitride finished for corrosion...