Quarter Circle 10 .40 SW Barrel 10.5in .578-28 Thread Black Nitride QC-BRL-40-10.5

Quarter Circle 10 Complete 9mm Upper w/ PMUR 10.5in Barrel 1/2 - 28 10.5in HG FH Black QC-CU-G9-10.5

Quarter Circle 10 Complete 9mm Upper w/ PMUR 10.5in Barrel 1/2 - 28 10.5in HG FH Black QC-CU-G9-10.5. 355 Caliber Features of Quarter Circle 10 Complete 9mm Upper w/ PMUR: QC10 Billet Rear Charging Upper Receiver 9x19mm QPQ Nitride-Treated Barrel... ... 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-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue

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

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

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

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

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish. 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-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Red

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

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish OD

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

Quarter Circle 10 .40 SW Barrel 5.5in .578-28 Thread Black Nitride QC-BRL-40-5.5

Quarter Circle 10 .40 SW Barrel 5.5in .578-28 Thread Black Nitride QC-BRL-40-5.5. 40 S&W barrels are threaded for the attachment of flash hiders suppressors and accessories and finished with a nearly indestructible protective treatment. Barrels have a... ... more

Quarter Circle 10 Side Charging Complete 45 ACP Upper Receiver Assembly 10.5in Barrel Black QC-CU-PSCU-G-45-10.5

Quarter Circle 10 Side Charging Complete 45 ACP Upper Receiver Assembly 10.5in Barrel Black QC-CU-PSCU-G-45-10.5. The patent-pending left side charging handle will allow you to charge your .45ACP cartridges out of the side of your receiver without fear... ... more

Quarter Circle 10 9mm Barrel 10.5in Black Nitride QC-BRL-9-10.5

Quarter Circle 10 9mm Barrel 10.5in Black Nitride QC-BRL-9-10.5. The thread pitch of these 9mm barrels is 1/2x28 which can mount on most auto-loading pistol magazines making these barrels a must have for any 9mm auto-loader build. Every Quarter Circle... ... more

Quarter Circle 10 .45 ACP Barrel 10.5in Black Nitride QC-BRL-45-10.5

Quarter Circle 10 .45 ACP Barrel 10.5in Black Nitride QC-BRL-45-10.5. 45 ACP Barrel to ensure you're shooting with maximum precision. These Rifle Barrels made by Quarter Circle 10 are designed with a QPQ nitride finish for superior strength and... ... more

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 10.5in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-105-M4-556-7-C

Rosco Manufacturing Bloodline 5.56 NATO Barrel M4 10.5in Carbine 1-7 Twist 1/2x28 Thread Nitride Black BL-105-M4-556-7-C. 56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. We are a long way from our daddy's "Sporter"... ... more

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 16in Barrel .578-28 15in HG FH Black QC-CU-G45-16

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 16in Barrel .578-28 15in HG FH Black QC-CU-G45-16. Leader in top of the line dedicated AR15 Pistol Caliber parts. This product is not compatible with DI gas systems or rifle-caliber bolts.... ... more

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 5.5in Barrel .578-28 5.5in HG FH Black QC-CU-G45-5.5

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 5.5in Barrel .578-28 5.5in HG FH Black QC-CU-G45-5.5. Leader in top of the line dedicated AR15 Pistol Caliber parts. This product is not compatible with DI gas systems or rifle-caliber bolts.... ... more

Veritas Tactical Pro Match Carbine Length Barrel 10.5in Medium Profile 1/7 Twist 1/2 x 28 Thread Black Nitride PB-105-M4-556-7-N

Veritas Tactical Pro Match Carbine Length Barrel 10.5in Medium Profile 1/7 Twist 1/2 x 28 Thread Black Nitride PB-105-M4-556-7-N. It is a combination of standard and polygonal rifling. The primary function of this innovation is to provide an improved... ... more

Quarter Circle 10 .40 SW Barrel 7.5in .578-28 Thread Black Nitride QC-BRL-40-7.5

Quarter Circle 10 .40 SW Barrel 7.5in .578-28 Thread Black Nitride QC-BRL-40-7.5. 40 S&W barrels are threaded for the attachment of flash hiders suppressors and accessories and finished with a nearly indestructible protective treatment. Barrels have a... ... more

Outerwild AR15 Barrel 5.56NATO AR Platform 10.5in Government Carbine Length 1-7 Twist 1/2x28 Thread Black Nitride 1101-0201-002-O

Outerwild AR15 Barrel 5.56NATO AR Platform 10.5in Government Carbine Length 1-7 Twist 1/2x28 Thread Black Nitride 1101-0201-002-O. Using fully automated robotically-driven production line drill ream rifle contour and assemble our barrels from raw bar... ... more

Veritas Tactical CMV AR 9mm Barrel 10.5in Medium Profile 1/10 Twist 1/2 x 28 Thread Black Nitride PCB-105-M4-9MM-10-N

Veritas Tactical CMV AR 9mm Barrel 10.5in Medium Profile 1/10 Twist 1/2 x 28 Thread Black Nitride PCB-105-M4-9MM-10-N. Specifications for Veritas Tactical CMV AR 9mm Barrel Medium Profile: Manufacturer: Veritas Tactical Finish: Black Nitride Barrel... ... more

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

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

Quarter Circle 10 .45 ACP Barrel 16in Black Nitride QC-BRL-45-16

Quarter Circle 10 .45 ACP Barrel 16in Black Nitride QC-BRL-45-16. 45 ACP Barrel to ensure you're shooting with maximum precision. These Rifle Barrels made by Quarter Circle 10 are designed with a QPQ nitride finish for superior strength and corrosion... ... more

Quarter Circle 10 Complete 9mm Upper w/ PMUR 16in Barrel 1/2 - 28 15in HG FH Black QC-CU-G9-16

Quarter Circle 10 Complete 9mm Upper w/ PMUR 16in Barrel 1/2 - 28 15in HG FH Black QC-CU-G9-16. 355 Caliber Features of Quarter Circle 10 Complete 9mm Upper w/ PMUR: QC10 Billet Rear Charging Upper Receiver 9x19mm QPQ Nitride-Treated Barrel Compatible... ... more

Quarter Circle 10 9mm Barrel 16in Black Nitride QC-BRL-9-16

Quarter Circle 10 9mm Barrel 16in Black Nitride QC-BRL-9-16. The thread pitch of these 9mm barrels is 1/2x28 which can mount on most auto-loading pistol magazines making these barrels a must have for any 9mm auto-loader build. Every Quarter Circle 10... ... more

Quarter Circle 10 9mm Barrel 5.5in Black Nitride QC-BRL-9-5.5

Quarter Circle 10 9mm Barrel 5.5in Black Nitride QC-BRL-9-5.5. The thread pitch of these 9mm barrels is 1/2x28 which can mount on most auto-loading pistol magazines making these barrels a must have for any 9mm auto-loader build. Every Quarter Circle 10... ... more

Quarter Circle 10 .40 S&W/10mm Auto Bolt Assembly Black Nitride QC-A-BLT-G-40

Quarter Circle 10 .40 S&W/10mm Auto Bolt Assembly Black Nitride QC-A-BLT-G-40. Every QC10 product is engineered specifically for pistol caliber ammunition not modified from an existing platform increasing functionality reliability and overall... ... more

Quarter Circle 10 Adjustable Pistol Caliber Buffer Assembly Black Nitride QC-BFS-ADJ

Quarter Circle 10 Adjustable Pistol Caliber Buffer Assembly Black Nitride QC-BFS-ADJ. 40 S&W and .45ACP. Quick change weight management allows use with multiple configurations. Specifications for Quarter Circle 10 Adjustable Pistol Caliber Buffer... ... more

Quarter Circle 10 .45 ACP Barrel 5.5in Black Nitride QC-BRL-45-5.5

Quarter Circle 10 .45 ACP Barrel 5.5in Black Nitride QC-BRL-45-5.5. 45 ACP Barrel to ensure you're shooting with maximum precision. These Rifle Barrels made by Quarter Circle 10 are designed with a QPQ nitride finish for superior strength and corrosion... ... more

Quarter Circle 10 .45 ACP Barrel 7.5in Black Nitride QC-BRL-45-7.5

Quarter Circle 10 .45 ACP Barrel 7.5in Black Nitride QC-BRL-45-7.5. 45 ACP Barrel to ensure you're shooting with maximum precision. These Rifle Barrels made by Quarter Circle 10 are designed with a QPQ nitride finish for superior strength and corrosion... ... more

Quarter Circle 10 Complete 9mm Upper w/ PMUR 7.5in Barrel 1/2 - 28 7.5in HG FH Black QC-CU-G9-7.5

Quarter Circle 10 Complete 9mm Upper w/ PMUR 7.5in Barrel 1/2 - 28 7.5in HG FH Black QC-CU-G9-7.5. 355 Caliber Features of Quarter Circle 10 Complete 9mm Upper w/ PMUR: QC10 Billet Rear Charging Upper Receiver 9x19mm QPQ Nitride-Treated Barrel... ... more

Quarter Circle 10 Complete 9mm Upper w/ PMUR 5.5in Barrel 1/2 - 28 5.5in HG FH Black QC-CU-G9-5.5

Quarter Circle 10 Complete 9mm Upper w/ PMUR 5.5in Barrel 1/2 - 28 5.5in HG FH Black QC-CU-G9-5.5. 355 Caliber Features of Quarter Circle 10 Complete 9mm Upper w/ PMUR: QC10 Billet Rear Charging Upper Receiver 9x19mm QPQ Nitride-Treated Barrel... ... more

Quarter Circle 10 9mm Barrel 7.5in Black Nitride QC-BRL-9-7.5

Quarter Circle 10 9mm Barrel 7.5in Black Nitride QC-BRL-9-7.5. The thread pitch of these 9mm barrels is 1/2x28 which can mount on most auto-loading pistol magazines making these barrels a must have for any 9mm auto-loader build. Every Quarter Circle 10... ... more