Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 7.5in Barrel Black QC-CU-PSCU-G-9-7.5 Inch

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver M-Lok Complete - Sd Mod 4 9mm Upper Receiver 16.1in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 16.1 inch, 1-10 twist, Melonited barrel, is free float in a 12in M-LOK handguard... ... more

Stern Defense Ar-15 Sd Mod 4 9mm Upper Receiver 4in M-Lok Complete - Sd Mod 4 9mm Upper Receiver 4in

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting. The 4 inch, 1-10 twist, Melonited barrel, is free float in a 4in M-LOK handguard... ... more

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 7.5in Barel .578-28 7.5in HG FH Black QC-CU-G45-7.5

Quarter Circle 10 45 ACP Complete Upper Receiver w/ PMUR 7.5in Barel .578-28 7.5in HG FH Black QC-CU-G45-7.5. 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

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash Hider

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash Hider. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... more

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 16in Barrel Black QC-CU-PSCU-G-9-16 Inch

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 16in Barrel Black QC-CU-PSCU-G-9-16 Inch. 355 Caliber Features of Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly: QC10 Side Charging Upper Receiver Compatible... ... more

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 5.5in Barrel Black QC-CU-PSCU-G-9-5.5 Inch

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 5.5in Barrel Black QC-CU-PSCU-G-9-5.5 Inch. 355 Caliber Features of Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly: QC10 Side Charging Upper Receiver Compatible... ... more

Jacob Grey Firearms Complete Upper Assembly 9mm 7.5in 1-10 Twist 1/2x36 Thread Black 9MM75CUA

Jacob Grey Firearms Complete Upper Assembly 9mm 7.5in 1-10 Twist 1/2x36 Thread Black 9MM75CUA. DISCLAIMER: Firearm specifications are subject to change at any time based on availability and supply chain shortage. Specifications for Jacob Grey Firearms... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash Hider

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash Hider. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... 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 Side Charging Complete 45 ACP Upper Receiver Assembly 16in Barrel Black QC-CU-PSCU-G-45-16

Quarter Circle 10 Side Charging Complete 45 ACP Upper Receiver Assembly 16in Barrel Black QC-CU-PSCU-G-45-16. The patent-pending left side charging handle will allow you to charge your .45ACP cartridges out of the side of your receiver without fear of... ... more

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 10.5 inch Barrel Midnight Bronze Charging Handle 10 inch Rail A2 Flash Hider U5610560

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 10.5 inch Barrel Midnight Bronze Charging Handle 10 inch Rail A2 Flash Hider U5610560. 56 family allowing the shooter to mount any accessory to the barrel without sacrificing the weight of a... ... more

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 7.5in 1-7 Twist 1/2x28 Thread Black 556N75CUA

Jacob Grey Firearms Complete Upper Assembly 5.56 NATO 7.5in 1-7 Twist 1/2x28 Thread Black 556N75CUA. 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

Grid Defense Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail A2 Flash Hider OD Green

Grid Defense Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail A2 Flash Hider OD Green. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build... ... more

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash. 5in Complete Upper Receiver w/ Pistol Lower Parts Kit features a 7.5in pistol profile made of 4150... ... more

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

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 9mm 9x19 Para 7.5in Pistol Light HBAR Barrel 1-10 Twist 7in M-LOK Freefloat Handguard Blk

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 9mm 9x19 Para 7.5in Pistol Light HBAR Barrel 1-10 Twist 7in M-LOK Freefloat Handguard Blk. These AR15 Lower Parts by Ghost Firearms contain everything you need to install the lower half onto an... ... more

Kaw Valley Precision Carbon Fiber 9mm Complete Barrel Upper Receiver 4.5in Barrel 7.25in CF Handguard XL Linear Compensator Black Medium KVP-CF9-4XLLC

Kaw Valley Precision Carbon Fiber 9mm Complete Barrel Upper Receiver 4.5in Barrel 7.25in CF Handguard XL Linear Compensator Black Medium KVP-CF9-4XLLC. After assembly each upper is test fired to prove its function before leaving our warehouse... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Grid Defense Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Rail A2 Flash Hider Black GD16E14GFR9MMBLK

Grid Defense Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Rail A2 Flash Hider Black GD16E14GFR9MMBLK. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable... ... 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

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 9mm Luger 6 inch Barrel M4 Profile .750 inch 1-10 Twist 1/2x28 Chromoly Black AAUT109006

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 9mm Luger 6 inch Barrel M4 Profile .750 inch 1-10 Twist 1/2x28 Chromoly Black AAUT109006. Ready to run with any 9MM AR-15 dedicated lower receiver. Specifications for Angstadt Arms AR-15... ... more

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 9mm Luger 10.5 inch Barrel M4 Profile 1-10 Twist 1/2x28 Chromoly Black AAUT109105

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 9mm Luger 10.5 inch Barrel M4 Profile 1-10 Twist 1/2x28 Chromoly Black AAUT109105. Ready to run with any 9MM AR-15 dedicated lower receiver. Specifications for Angstadt Arms AR-15 Complete... ... more

Brigade Manufacturing AR Complete Upper Receiver Forged 9mm 16 inch Barrel Black Mini Can 15 inch Rail No Charging Handle NO BCG U091161V

Brigade Manufacturing AR Complete Upper Receiver Forged 9mm 16 inch Barrel Black Mini Can 15 inch Rail No Charging Handle NO BCG U091161V. . These AR15 Upper Receivers through the expert product experts at Brigade Manufacturing are fashioned working... ... more

FM Products FM-9 AR 9mm Forward Charging Upper Receiver w/ Micro Brake 9x19mm Parabellum 10 inch 8.5in Barrel Blast Diffuser Black FM9-FS-109

FM Products FM-9 AR 9mm Forward Charging Upper Receiver w/ Micro Brake 9x19mm Parabellum 10 inch 8.5in Barrel Blast Diffuser Black FM9-FS-109. Built with a host of top tier features these AR15 Upper Receivers created by the experts at Foxtrot Mike... ... more

Angstadt Arms AR-9 Upper Receiver Assembly Kits 9mm Luger 16 inch Barrel M4 Profile 1-10 Twist 1/2x36 Chromoly Black AAUDP09X0R

Angstadt Arms AR-9 Upper Receiver Assembly Kits 9mm Luger 16 inch Barrel M4 Profile 1-10 Twist 1/2x36 Chromoly Black AAUDP09X0R. Kit includes 16 inch 9mm barrel 15 inch handguard and B5 Bravo Stock. Ready to install on any mil-spec upper receiver.... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Grid Defense Complete Upper Receiver 9mm 9x19 Para 5.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail Dimpled Flash Can Tactical

Grid Defense Complete Upper Receiver 9mm 9x19 Para 5.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail Dimpled Flash Can Tactical. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... more

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash. Ghost Firearms designed these AR15 Upper Receivers from 7075 T6 aluminum for a rugged build that won't... ... 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

Grid Defense Complete Upper Receiver 9mm 9x19 Para 5.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail Dimpled Flash Can Flat Dark

Grid Defense Complete Upper Receiver 9mm 9x19 Para 5.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch Octagon M-LOK Rail Dimpled Flash Can Flat Dark. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable... ... more