Upper Receivers

KAK Complete AR10 Upper Receiver - 243 Winchester - 19" Barrel, 15: MLOK

KAK Complete Upper Receiver- 300 WSM - 19" Barrel 15" - MLOK

Complete AR15 Upper- Bravo Mount, 300BLK, 13.9" Pin/Weld (16" OAL)

KAK Complete AR15 Upper Receiver - 300 Blackout - 4.75" Barrel - 4" MLOK

Complete AR15 Upper Receiver - 5.56 - 10.5" Barrel - 9.8" MLOK - Pinned 6" FH

Complete Upper Receiver - 5.56 - 12.5" Barrel Mid Gas- 9.8" MLOK - Pinned and Welded

Complete AR15 Upper Receiver - 5.56 - 12.5" Barrel Carbine Gas - 13" MLOK - 4" Pinned Flash Hider

Complete AR15 Upper Receiver - 5.56 - 16" Barrel Mid Gas - 15" MLOK

Geissele autos Super Duty AR-15 Receiver Set, Semi-auto, Lower/Upper Set, 223 Remington/556NATO, Anodized Finish, Olive Drab Green 05-1171ODG

WMD Guns Upper/Lower Receiver Set NIBXMSF15-3PC, Semi-automatic, 223 Rem/556NATO, Free Float Hand Guard, Nib-X Finish NIBXMSF15-3PC

Spikes Tactical Snowflake Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Burnt Bronze, Includes 12 in SAR3 Rail STS1630-PT2S

Spikes Tactical Punisher Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Patriot Brown, Includes 9 in SAR3 Rail STS1615-PB9S

Spikes Tactical Punisher Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Barrett Brown, Includes 13.2 in SAR3 Rail STS1615-PN3S

Spikes Tactical Gadsden Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Magpul FDE, Includes 9 in SAR3 Rail STS1634-PM9S

Spikes Tactical Gadsden Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Flat Dark Earth, Includes 9 in SAR3 Rail STS1634-PFD9

Spikes Tactical Gadsden Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Coyote Tan, Includes 13.2 in SAR3 Rail STS1634-PC3S

Spikes Tactical Crusader Forged Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Combat Grey, Includes 7 in MLOK Rail STS1622-PG7M

Spikes Tactical Calico Jack Lower/Upper Receiver Set, Semi-automatic, 223 Remington/556NATO, Cerakote Finish, Magpul Foliage Green, Includes 7 in MLOK Rail STS1616-PF7M

WILSON COMBAT Forged Lower/Upper Matched Receiver Set (TR-LOWUPP-CTG-ATB)

RADIAN WEAPONS Model 1 Builder Kit Billet Upper/Lower Set w/ 8.5in MLOK Handguard (R0436)

RADIAN WEAPONS Model 1 Builder Kit Billet Upper/Lower Set w/ 10in MLOK Handguard (R0431)

DIAMONDBACK DB15 Combo 223 Remington/556NATO 16in 30rd Black Semi-Auto Rifle With Additional 300 Blackout Upper Receiver (DB1721K001)

Spikes Tactical Complete Upper Black 5.56 16 Barrel

Armalite AR10 Versital Sporting Rifle Upper 20" bbl UAR10VSR