Rock River Arms Mountain Pistol 10.5in Upper Black MT0364

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 Ar-15 Star Safety Selector - Star Safety Selector

Round thumb pad gives fast, positive operation; especially important when wearing gloves. Rolls easily under your thumb for faster application or release. Mfg: Rock River Arms SPECS: 4140 steel, black, matte finish. For semi-auto AR-15 only. ... 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

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTSCUBO10BR

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Bronze XTSCUBO10BR. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish OD Green

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish OD Green. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR. These XTS... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Purple XTSCUBO10PP

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Purple XTSCUBO10PP. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red XTSCUBO10RD

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red XTSCUBO10RD. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR. These... ... more

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 19.5in 10.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride

XTS Complete Upper Receiver w/o BCG w/ Ce Rail AR-15 .223/5.56 19.5in 10.5in Barrel Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride. 56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel capable of shooting both .223 and 5.56. With an... ... more

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Silver XTSCUBO10SL

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Silver XTSCUBO10SL. With an Anchor Harvey Upper and an XTS Hand Guard this will make your next build the ultimate AR.... ... more

TRYBE Defense AR-15 Pistol 10.5in Complete Upper M-LOK .300 Blackout 4140 CMV Black UPPER105300

TRYBE Defense AR-15 Pistol 10.5in Complete Upper M-LOK .300 Blackout 4140 CMV Black UPPER105300. You need it. If you're ready to enjoy the awesomeness that is an AR Pistol the TRYBE Defense AR-15 10.5" Upper chambered in .300 Blackout has everything... ... more

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit .300 Blackout 10.5in Pistol Light HBAR Barrel 1-8 Twist 9in M-LOK Freefloat Handguard Blk

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit .300 Blackout 10.5in Pistol Light HBAR Barrel 1-8 Twist 9in M-LOK Freefloat Handguard Blk. 300 Blackout Complete Upper Receiver w/Pistol Lower Parts Kit is full of them. Ghost Firearms expertly... ... more

Grey Ghost Precision Complete Upper 5.56mm 20.12in 10.5in Low Profile Carbine 1-7 1x2/28 M-LOK Black GGP-556-10-UC

Grey Ghost Precision Complete Upper 5.56mm 20.12in 10.5in Low Profile Carbine 1-7 1x2/28 M-LOK Black GGP-556-10-UC. 56 10.5 Complete upper is exactly what you need to build a AR pistol or SBR using the same quality parts offered in complete GGP rifles... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 10.5in 1-7 Twist 1/2x28 Thread Black 556N105CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 10.5in 1-7 Twist 1/2x28 Thread Black 556N105CUA. 56 NATO and built around a 1/7 twist barrel. 7-sided M-LOK Handguard and 7075 Aluminum Upper Receiver. These uppers have a pistol-length gas system... ... more

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 7.62x39 10.5in Carbine Light HBAR Barrel 1-10 Twist 9in M-LOK Freefloat Handguard Blk

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 7.62x39 10.5in Carbine Light HBAR Barrel 1-10 Twist 9in M-LOK Freefloat Handguard Blk. This complete upper assembly kit by Ghost Firearms comes with a solid 4150 Light H Bar Button Rifle Barrel... ... more

TRYBE Defense AR-15 Pistol Semi-Complete Upper M-LOK w/o BCG or Charging Handle 10.5in .300 Blackout 4140 CMV Black SCUPPER105300

TRYBE Defense AR-15 Pistol Semi-Complete Upper M-LOK w/o BCG or Charging Handle 10.5in .300 Blackout 4140 CMV Black SCUPPER105300. 5" Semi-Complete Upper chambered in .300 Blackout has everything you need. Featuring an ultra-durable high-performance... ... more

Tiger Rock Complete Upper Receiver AR 7.62X39 10.5in Carbine Length 1-9.5in Twist w/ 10in M-LOK Handguard Black Large UB762-P10.5-FSSM10

Tiger Rock Complete Upper Receiver AR 7.62X39 10.5in Carbine Length 1-9.5in Twist w/ 10in M-LOK Handguard Black Large UB762-P10.5-FSSM10. 62X39 Complete Upper Receiver. These AR15 Upper Receivers from the skilled product specialists at Tiger Rock are... ... more

Rock River Arms 10.5in CL 1-7 Full Auto Barrel Assembly Black AR0241ASY

Rock River Arms 10.5in CL 1-7 Full Auto Barrel Assembly Black AR0241ASY. 56 Nato 10.5 Inch Barrel Assembly 1:7 Twist 10.5" Chrome Lined Bore & Chamber Front Sight Housing W/Bayonet Lug W/Barrel Nut Specifications for Rock River Arms 10.5in CL 1-7 Full... ... more

Rock River Arms 10.5in CL 1-7 Full Auto Barrel Black AR0241

Rock River Arms 10.5in CL 1-7 Full Auto Barrel Black AR0241. 56 Nato 10.5 Inch Barrel With Extension And Pin 1:7 Twist Specifications for Rock River Arms 10.5in CL 1-7 Full Auto Barrel: Manufacturer: Rock River Arms Color: Black Fabric/Material: 416R... ... more

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 16 Inch Barrel Mid-Length Profile 1-9 Twist 1/2-28 Thread A2 Flash Hider Black AR0375B

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 16 Inch Barrel Mid-Length Profile 1-9 Twist 1/2-28 Thread A2 Flash Hider Black AR0375B. 223/5.56mm Completed Pistol Upper. These AR15 Upper Receivers through the skilled product... ... more

Rainier Arms Mountain MOD2 5.56 NATO Barrel 10.5in 1/2x28 Carbine Len Black Small RAB-CMV-556-105-C-HF-BLK

Rainier Arms Mountain MOD2 5.56 NATO Barrel 10.5in 1/2x28 Carbine Len Black Small RAB-CMV-556-105-C-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... ... more

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 16 Inch Barrel Mid-Length Profile 1-9 Twist 1/2-28 Thread A2 Flash Hider w/Gas Block

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 16 Inch Barrel Mid-Length Profile 1-9 Twist 1/2-28 Thread A2 Flash Hider w/Gas Block. 223/5.56mm Completed Pistol Upper. These AR15 Upper Receivers through the skilled product professionals... ... more

Rock River Arms Completed Pistol Upper Receiver Mountain .223/5.56mm 10.5 Inch Barrel 1-9 Twist 1/2-28 Threat A2 Flash Hider Black MT0600

Rock River Arms Completed Pistol Upper Receiver Mountain .223/5.56mm 10.5 Inch Barrel 1-9 Twist 1/2-28 Threat A2 Flash Hider Black MT0600. 223/5.56mm Completed Pistol Upper was developed to function as the best item for anyone needing an outstanding... ... more

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 4.5 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 4.5 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black. 223/5.56mm Completed Pistol Upper. These AR15 Upper Receivers through the skilled product... ... more

Rock River Arms Upper Receiver EOP .223 Wylde 18 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0530

Rock River Arms Upper Receiver EOP .223 Wylde 18 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0530. 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 FESP .223 Wylde 16 Inch Barrel Mid Lenght Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard Brake Black

Rock River Arms Completed Upper Receiver FESP .223 Wylde 16 Inch Barrel Mid Lenght Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard Brake Black. 223 Wylde Completed Upper. These AR15 Upper Receivers through the skilled product professionals at Rock... ... more

Rock River Arms Completed Upper Receiver Carbine SS .350 Legend 16 Inch Barrel 1-16 Twist 1/2-36 Thread Free-Float Handguard Brake Black 350L0326

Rock River Arms Completed Upper Receiver Carbine SS .350 Legend 16 Inch Barrel 1-16 Twist 1/2-36 Thread Free-Float Handguard Brake Black 350L0326. 350 Legend Completed Upper was developed in order to function as the best product for anyone trying to... ... more

Rock River Arms Completed Upper Receiver Coyote Rifle .223 Wylde 20 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black

Rock River Arms Completed Upper Receiver Coyote Rifle .223 Wylde 20 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black. 223 Wylde Completed Upper was created to function as the ideally suited product for anybody trying to... ... more

Rock River Arms Upper Receiver A4 .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0550

Rock River Arms Upper Receiver A4 .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0550. 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 Completed Pistol Upper Receiver A4 .223/5.56mm 10.5 Inch Barrel 1-7 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hide Black

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 10.5 Inch Barrel 1-7 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hide Black. 223/5.56mm Completed Pistol Upper. These AR15 Upper Receivers through the skilled product professionals at... ... more

Rock River Arms Completed Upper Receiver Predator Pursuit .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0567

Rock River Arms Completed Upper Receiver Predator Pursuit .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0567. 223 Wylde Completed Upper was developed in order to be the ideally suited item for any person looking for... ... more

Rock River Arms Completed Upper Receiver A4 9MM Luger 10.5 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0364B

Rock River Arms Completed Upper Receiver A4 9MM Luger 10.5 Inch Barrel 1-10 Twist 1/2-36 Thread R4 Handguard A2 Flash Hider Black 9MM0364B. . Formulated working with several of the very most robust and dependable materials available these AR15 Upper... ... more

Rock River Arms Upper Receiver A4 .223 Wylde 24 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0575

Rock River Arms Upper Receiver A4 .223 Wylde 24 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black AR0575. 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 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 Upper Receiver ATH V2 .223/5.56mm 18 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard RRA Operator Muzzle Break

Rock River Arms Completed Upper Receiver ATH V2 .223/5.56mm 18 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard RRA Operator Muzzle Break. 223 Wylde Completed Upper then you've turned up at the absolute appropriate place.. Established using... ... more

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 7 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hide Black AR0365B

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 7 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hide Black AR0365B. 223/5.56mm Completed Pistol Upper. These AR15 Upper Receivers through the skilled product... ... more