Results for 45 ACP Upper Receivers

AR-STONER AR-15 Complete Upper Receiver 45 ACP 16" Barrel

Stern Defense Complete Upper .45 ACP 6 Barrel M-LOK Handguard

TacFire AR Build Kit .45 ACP 16 Barrel for AR-Platform

AR-STONER AR-15 Pistol Complete Upper Receiver 45 ACP 4" Barrel

Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper

Stern Defense AR-15 SD 15 MOD5 Complete Upper Receiver 45ACP 16.1" M-LOK

Angstadt Arms Angstadt Upper Receiver Pistol Calibers 9mm/40sw/10mm/.45acp

AR-STONER AR-15 Pistol Kit 7" Barrel 45 ACP

Dirty Bird AR-15 Forged Multi-Cal Receiver Set + SRMS Handguard - FDE, 9.5"

CMMG Upper Group Resolute Fixed Ejector MkG . 45 ACP 16.1in 1-16 Twist 0.578-28 TPI Tungsten

CMMG Upper Group Resolute Fixed Ejector MkG . 45 ACP 16.1in 1-16 Twist 0.578-28 TPI Armor Black

CMMG Upper Group Dissent 45 Acp 16.1in 1-16 Twist 0.578 X 28 TPI 25.5in Tungsten

CMMG Upper Group Dissent 45 Acp 16.1in 1-16 Twist 0.578 X 28 TPI 25.5in Coyote Tan

CMMG Upper Group Dissent 45 Acp 16.1in 1-16 Twist 0.578 X 28 TPI 25.5in Armor Black

CMMG Upper Group Dissent 45 Acp 6.5in 1-16 Twist 0.578 X 28 TPI Tungsten

CMMG Upper Group Dissent 45 Acp 6.5in 1-16 Twist 0.578 X 28 TPI Midnight Bronze

CMMG Upper Group Dissent 45 Acp 6.5in 1-16 Twist 0.578 X 28 TPI Coyote Tan

CMMG Upper Group Dissent 45 Acp 6.5in 1-16 Twist 0.578 X 28 TPI Armor Black

CMMG Mkg Banshee Upper Receiver Group .45 ACP 8in Armor Black

CMMG MkG .45 ACP Resolute Upper Group Receiver 16.1in Tungsten

CMMG MkG .45 ACP Resolute Upper Group Receiver 16.1in Titanium

CMMG MkG .45 ACP Resolute Upper Group Receiver 16.1in Sniper Grey

CMMG MkG .45 ACP Resolute Upper Group Receiver 16.1in Midnight Bronze

CMMG MkG .45 ACP Resolute Upper Group Receiver 16.1in Coyote Tan