FM Products MIKE-9 9mm Complete Upper Receiver 12.75 inch 5 inch Barrel MIL-SPEC Rear Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black

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

Brownells Brn-16a4 Complete Upper Receiver - Brn 16a4 20" Upper Receiver

The BRN-16A4 features the correct components you're seeking in a M16A4 build. With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber,... ... more

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

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 7.5in Barrel Black QC-CU-PSCU-G-9-7.5 Inch. 355 Caliber Features of Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly: QC10 Side Charging Upper Receiver Compatible... ... more

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 5 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R54-B-MMKIT

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 5 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R54-B-MMKIT. 45 ACP Complete Upper Receiver Kit was made to be the ideal item for any person looking for an outstanding choice.. Established using... ... 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

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R1615-4-MMKIT

FM Products MIKE-45 .45 ACP Complete Upper Receiver Kit 16 inch Barrel Mil-Spec Rear Charge Black MIKE45U-R1615-4-MMKIT. 45 ACP Complete Upper Receiver Kit was made to be the ideal item for any person looking for an outstanding choice.. Established... ... more

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F1615-4

FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F1615-4. . These AR15 Upper Receivers through the professional product experts at FM Products are designed by... ... 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

FM Products MIKE-9 9mm Complete Upper Receiver 17.75 inch 10 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F109-B

FM Products MIKE-9 9mm Complete Upper Receiver 17.75 inch 10 inch Barrel Front Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black MIKE9U-F109-B. . These AR15 Upper Receivers through the professional product experts at FM Products are designed by... ... 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 OD Green

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 OD Green. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable... ... 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

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 Tungsten

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 Tungsten. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable... ... 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 Blue

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 Blue. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build... ... 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 Burnt Bronze

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 Burnt Bronze. 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 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

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

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

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

FM Products Mike-15 .223 Wylde Gen 2 Complete Upper Receiver 22.25 inch 12.5 inch Barrel Mid Length 1-8 Twist 1/2x28 Thread Free-Float Nitride Black

FM Products Mike-15 .223 Wylde Gen 2 Complete Upper Receiver 22.25 inch 12.5 inch Barrel Mid Length 1-8 Twist 1/2x28 Thread Free-Float Nitride Black. Specifications for FM Products Mike-15 .223 Wylde Gen 2 Complete Upper Receiver: Manufacturer: FM... ... 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

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 7.5 inch Barrel Tungsten Charging Handle 7 inch Rail A2 Flash Hider U5617530

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 7.5 inch Barrel Tungsten Charging Handle 7 inch Rail A2 Flash Hider U5617530. 5 Upper is a lightweight forged upper designed to be the ideal platform for your next project. With the 7.5-inch... ... 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 Tungsten Gray

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 Tungsten Gray. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build and... ... 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 Blue Titanium

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 Blue Titanium. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build and... ... more

Faxon Firearms AR-9 Complete Upper Receiver 9mm SAMMI 15 inch Aluminum Handguard 16 inch Taper Barrel Gen 2 BCG A2 Flash Hider Black FX916U URSSB762

Faxon Firearms AR-9 Complete Upper Receiver 9mm SAMMI 15 inch Aluminum Handguard 16 inch Taper Barrel Gen 2 BCG A2 Flash Hider Black FX916U URSSB762. Faxon Firearms designed these AR15 Upper Receivers with an ambidextrous charging handle to suit both... ... 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 Flat Dark Earth

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 Flat Dark Earth. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build... ... 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 Tactical Grape

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 Tactical Grape. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build... ... 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 OD Green

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 OD Green. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build and you... ... 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

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 Burnt Bronze

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 Burnt Bronze. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build and... ... more