MSR Uppers And Lowers

AERO PRECISION M5 COMPLETE UPPER 16" BARREL 308 WIN RM15

AERO PRECISION MOD 4 HANDGUARD 15" BLACK ANODIZED

Aim Sports AR5CUB8 Assembly 5.56x45mm NATO 10.50" Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver 10" M-LOK Handguard for AR-15

Aim Sports AR5CUB9 Complete Build Kit 5.56x45mm NATO 10.50" Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver 10" M-LOK Handguard for AR-15

Aim Sports ARCLPK Lower Parts Kit AR-15 Black

American Defense Mfg., UIC BILLET, Semi-automatic, Stripped Lower Receiver, 223 Remington/556NATO, Anodized Finish, Black, Includes Installed Ambidextrous Magazine Release and Bolt Catch

ATI ATI15AX410KIT18 Alpha Upper Kit 410GA 18.50" 5rd Black

ATI ATI15MS450BM Mil-Sport Upper Complete 450 Bushmaster 16" Black Nitride Barrel/7075-T6 Aluminum Black Anodized Receiver 15" M-LOK Handguard for AR-15

Battle Arms Development, WORKHORSE, Upper Receiver Assembly, 223 Remington/556NATO, 16" Barrel, Mid-length Gas System, Anodized Finish, Black, A2 Flash Hider, WORKHORSE 15" M-LOK Free Float Handguard, Does Not Include Bolt Carrier Group or Charging Handle

Bravo Company, Complete Lower Receiver, AR-15, Multi Caliber, Anodized Finish, Black, BCM SOPMOD 2 Widebody Stock, 7075 T6 Aluminum, Factory Cosmetic Blem

Bravo Company, Complete Lower Receiver, AR-15, Multi Caliber, Anodized Finish, Flat Dark Earth, BCM SOPMOD 2 Widebody Stock, 7075 T6 Aluminum, Factory Cosmetic

Bravo Company, BCM, Semi-automatic, Complete Lower Receiver, 223 Remington, Black, BCM SOPMOD