Rock River Arms 16in 9mm Mid CM Barrel Black 9MM0203

Rock River Arms Car-15/M4 9mm Carbine Buffer - 9mm Carbine Buffer

9mm Carbine Buffer - Steel, matte black oxide finish. Mfg: Rock River Arms ... more

Rock River Arms Ar-15/M16 9mm Drop-Conversion Block - 9mm Magwell Conversion Block

Magwell Conversion Block - Steel with matte black oxide finish and aluminum with matte black, hardcoat anodized finish. Fits CAR-15/M4 collapsible stock models with .154" diameter receiver pin holes. Mfg: Rock River Arms ... more

Rock River Arms 16in 9mm CAR CM Barrel Black 9MM0201

Rock River Arms 16in 9mm CAR CM Barrel Black 9MM0201. 750 in Threads per Inch: 1/2x36 Barrel Twist Rate: 1-10 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 35 oz Package Contents: Rock River Arms 16in 9mm CAR CM Barrel Rock River... ... more

Rock River Arms 16in CAR CM Barrel Assembly Black AR0200ASY

Rock River Arms 16in CAR CM Barrel Assembly Black AR0200ASY. 56 Nato Barrel Assembly 16" Chrome MolyHandguard Cap &Front Sight Housing W/Bayonet Lug W/Barrel Nut Specifications for Rock River Arms 16in CAR CM Barrel Assembly: Manufacturer: Rock River... ... more

Rock River Arms 16in Mid LTWT CL Barrel Black AR0213CL

Rock River Arms 16in Mid LTWT CL Barrel Black AR0213CL. 56 Nato Lightweight Barrel With Extension And Pin 1:9 Twist Specifications for Rock River Arms 16in Mid LTWT CL Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome... ... more

Rock River Arms Completed Upper Receiver Mid-Length A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread A2 Flash Hider Black 9MM0388B

Rock River Arms Completed Upper Receiver Mid-Length A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread A2 Flash Hider Black 9MM0388B. Established using several of the most robust and dependable materials in existence these AR15 Upper Receivers via... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Brake Black 9MM0700.V1

Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Brake Black 9MM0700.V1. . Formulated working with several of the very most robust and dependable materials available these AR15 Upper... ... more

Rock River Arms 20in .308 CM Varmint Threaded Barrel Assembly w/Gas Blk Black 308A0234ASY

Rock River Arms 20in .308 CM Varmint Threaded Barrel Assembly w/Gas Blk Black 308A0234ASY. 308 CM Varmint Threaded Barrel Assembly w/Gas Blk: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome Cartridge: 7.62x51mm NATO Barrel Length: 20... ... more

Rock River Arms 16in CAR CM Barrel Black AR0200

Rock River Arms 16in CAR CM Barrel Black AR0200. 56 Nato Barrel With Extension And Pin Specifications for Rock River Arms 16in CAR CM Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome Moly Cartridge: 5.56x45mm NATO Barrel... ... more

Rock River Arms 7in 9mm CM Pistol Barrel Assembly Black 9MM0209ASY

Rock River Arms 7in 9mm CM Pistol Barrel Assembly Black 9MM0209ASY. 750 in Threads per Inch: 1/2x36 Barrel Twist Rate: 1-10 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 26 oz Package Contents: Rock River Arms 7in 9mm CM Pistol... ... more

Rock River Arms 16in Mid SS Barrel Post/No Threads Stainless Steel AR0216

Rock River Arms 16in Mid SS Barrel Post/No Threads Stainless Steel AR0216. 223 Wylde Barrel With Extension And Pin Unthreaded Specifications for Rock River Arms 16in Mid SS Barrel Post/No Threads: Manufacturer: Rock River Arms Color: Steel... ... more

Rock River Arms Completed Upper Receiver Mid-Length A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black

Rock River Arms Completed Upper Receiver Mid-Length A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black. 450 Bushmaster Completed Upper. Developed working with some of the most heavy duty and long lasting... ... more

Rock River Arms 16in Car CL LTWT Barrel Black AR0232CL

Rock River Arms 16in Car CL LTWT Barrel Black AR0232CL. 56 Nato Lightweight Barrel With Extension And Pin 1:9 Twist Specifications for Rock River Arms 16in Car CL LTWT Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome... ... more

Rock River Arms 16in Mid SS Barrel Post/Fluted/No Threads Stainless Steel AR0216F

Rock River Arms 16in Mid SS Barrel Post/Fluted/No Threads Stainless Steel AR0216F. 223 Wylde Barrel With Extension And Pin Unthreaded Specifications for Rock River Arms 16in Mid SS Barrel Post/Fluted/No Threads: Manufacturer: Rock River Arms Color:... ... more

Rock River Arms 7in 9mm CM Pistol Barrel Black 9MM0209

Rock River Arms 7in 9mm CM Pistol Barrel Black 9MM0209. 750 in Threads per Inch: 1/2x36 Barrel Twist Rate: 1-10 Flutes: No Gun Make: Rock River Arms Gun Model: Universal Weight: 22.1 oz Package Contents: Rock River Arms 7in 9mm CM Pistol Barrel Rock... ... more

Rock River Arms Completed Upper Receiver Carbine A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0328B

Rock River Arms Completed Upper Receiver Carbine A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0328B. . These AR15 Upper Receivers through the professional product experts at Rock River Arms are designed... ... more

Rock River Arms 10.5in 9mm CL Pistol Barrel Black 9MM0225CL

Rock River Arms 10.5in 9mm CL Pistol Barrel Black 9MM0225CL. 5 Inch Pistol Specifications for Rock River Arms 10.5in 9mm CL Pistol Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome Cartridge: 9mm Luger Barrel Length: 10.5 in... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 4.5 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Vortex Flash Hider Black 9MM0368

Rock River Arms Completed Upper Receiver A4 9MM Luger 4.5 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Vortex Flash Hider Black 9MM0368. . Formulated working with several of the very most robust and dependable materials available these... ... more

Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black LH0400

Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black LH0400. 223/5.56mm Completed Upper then you have turned up at the absolute appropriate spot.. Formulated... ... more

DEMO Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black

DEMO Rock River Arms Completed Upper Receiver Left Handed RAGE .223/5.56mm 16 Inch Barrel 1/2-28 Thread Free-Float Handguard A2 Flash Hider Black. 223/5.56mm Completed Upper then you have turned up at the absolute appropriate spot.. Formulated working... ... more

Rock River Arms Completed BilletvUpper Receiver .308/7.62X51mm 18 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard Brake

Rock River Arms Completed BilletvUpper Receiver .308/7.62X51mm 18 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard Brake. 308/7.62X51mm Completed Billet Upper was developed in order to function as the ideally suited product... ... more

Rock River Arms Completed Upper Receiver Operator ETR .308/7.62x51mm 16 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard

Rock River Arms Completed Upper Receiver Operator ETR .308/7.62x51mm 16 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard. 308/7.62X51mm Completed Upper. Developed using some of the most extremely robust and dependable... ... more

Rock River Arms Upper Receiver A4 .223 Wylde 24 Inch Barrel Varmint Profile 1-12 Twist Free-Float Handguard Black AR0576

Rock River Arms Upper Receiver A4 .223 Wylde 24 Inch Barrel Varmint Profile 1-12 Twist Free-Float Handguard Black AR0576. 223 Wylde Completed Upper was created to be the ideally suited product for anybody looking for an outstanding option.. These AR15... ... more

Rock River Arms 16in R4 CM LTWT Barrel Black AR0205

Rock River Arms 16in R4 CM LTWT Barrel Black AR0205. 56 Nato R-4 Barrel With Extension And Pin 1:9 Twist Specifications for Rock River Arms 16in R4 CM LTWT Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: 416R Stainless Steel... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 7 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard A2 Flash Hider Black 9MM0365B

Rock River Arms Completed Upper Receiver A4 9MM Luger 7 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard A2 Flash Hider Black 9MM0365B. . Formulated working with several of the very most robust and dependable materials available these AR15... ... more

Rock River Arms 18in Mid SS 1-8 Barrel Assembly w/Lp Gas Blk Stainless Steel AR0230ASY

Rock River Arms 18in Mid SS 1-8 Barrel Assembly w/Lp Gas Blk Stainless Steel AR0230ASY. 223 Wylde Barrel Assembly With Low Profile Gas Block Specifications for Rock River Arms 18in Mid SS 1-8 Barrel Assembly w/Lp Gas Blk: Manufacturer: Rock River Arms... ... more

Rock River Arms 16in Mid LTWT CL Barrel Assembly Black AR0213CLASY

Rock River Arms 16in Mid LTWT CL Barrel Assembly Black AR0213CLASY. 56 Nato Lightweight Barrel Assembly 1:9 Twist Specifications for Rock River Arms 16in Mid LTWT CL Barrel Assembly: Manufacturer: Rock River Arms Color: Black Fabric/Material: Chrome... ... more

Tiger Rock .308 AR-10 Rifle Build Kit Hybrid 17in 16in Barrel Heavy Mid 1x10 5/8x24 12in M-Lok Handguard Compensator Nitride Anodized Black

Tiger Rock .308 AR-10 Rifle Build Kit Hybrid 17in 16in Barrel Heavy Mid 1x10 5/8x24 12in M-Lok Handguard Compensator Nitride Anodized Black. 308 rifle. Specifications for Tiger Rock .308 AR-10 Rifle Build Kit: Manufacturer: Tiger Rock Cartridge: .308... ... more

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16

Tiger Rock Complete Upper Receiver AR-15 5.56 NATO 16in Mid Length 1-7 Twist w/ 16in Keymod Handguard Black Large UB15-FKM16. The Upper Receiver 16in Barrel and Bolt Carrier Group are made in specialized factories Included is a 16in Free Float Keymod... ... more

Rainier Arms Mountain MOD2 5.56 NATO Barrel 16in 1/2x28 Mid Len Black Medium RAB-CMV-556-16-M-HF-BLK

Rainier Arms Mountain MOD2 5.56 NATO Barrel 16in 1/2x28 Mid Len Black Medium RAB-CMV-556-16-M-HF-BLK. We have brought back our Mountain Series of barrels for those of you who want the accuracy you expect from Rainier Arms in a nearly indestructible... ... more

Rock River Arms Upper Receiver EOP .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0560

Rock River Arms Upper Receiver EOP .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0560. 223 Wylde Completed Upper then you have found yourself in the absolute correct location.. These AR15 Upper Receivers through the... ... more

Rock River Arms Completed Upper Receiver Predator HP A4 .308/7.62X51mm NATO 20 Inch Barrel 1-10 Twist Free-Float Handguard Brake Black 308A0567

Rock River Arms Completed Upper Receiver Predator HP A4 .308/7.62X51mm NATO 20 Inch Barrel 1-10 Twist Free-Float Handguard Brake Black 308A0567. 308/7.62X51mm NATO Completed Upper. Formulated by using several of the most robust and long lasting... ... more

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 20 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0587

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 20 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0587. 450 Bushmaster Completed Upper then you have come to the right spot.. Established working with several of the... ... more

Rock River Arms Completed Upper Receiver X-1 .308/7.62x51mm 18 Inch Barrel 1-10 Twist 5/8-24 Threat Free-Float Handguard Brake Black X308A0700B.V1

Rock River Arms Completed Upper Receiver X-1 .308/7.62x51mm 18 Inch Barrel 1-10 Twist 5/8-24 Threat Free-Float Handguard Brake Black X308A0700B.V1. 308/7.62X51mm Completed Upper was developed in order to be the best item for any person looking for a... ... more

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0592

Rock River Arms Completed Upper Receiver A4 .450 Bushmaster 16 Inch Barrel 1-24 Twist 5/8-32 Thread Free-Float Handguard Brake Black 450B0592. 450 Bushmaster Completed Upper then you have come to the right spot.. Established working with several of the... ... more

Rock River Arms Completed Upper Receiver Predator HP A4 .308/7.62X51mm NATO 16 Inch Barrel 1-10 Twist Free-Float Handguard Brake Black 308A0578

Rock River Arms Completed Upper Receiver Predator HP A4 .308/7.62X51mm NATO 16 Inch Barrel 1-10 Twist Free-Float Handguard Brake Black 308A0578. 308/7.62X51mm NATO Completed Upper. Formulated by using several of the most robust and long lasting... ... more

Rock River Arms Upper Receiver EOP .223 Wylde 24 Inch Barrel Varmint Profile 1-12 Twist Free-Float Handguard Black AR0580

Rock River Arms Upper Receiver EOP .223 Wylde 24 Inch Barrel Varmint Profile 1-12 Twist Free-Float Handguard Black AR0580. 223 Wylde Completed Upper then you have found yourself in the absolute correct location.. These AR15 Upper Receivers through the... ... more