5.56x45mm NATO Upper Receivers

Aero Precision M4E1-T 5.56x45 11.4 inch MOD 4 Upper Receiver Government Carbine Length 1 in 7 Twist A2 Bird Cage Kodiak Brown

Aero Precision M4E1-T 5.56x45 12.7 inch MOD 4Upper Receiver Government Mid Length 1 in 7 Twist A2 Bird Cage Kodiak Brown

Aero Precision M4E1-T 5.56x45 13.5 inch MOD 4 Upper Receiver Government Mid Length 1 in 7 Twist A2 Bird Cage Kodiak Brown

Aero Precision M4E1-T PRO CHF M4 5.56mm 14.5 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized Kodiak Brown

Aero Precision M4E1-T 5.56x45 10.6 inch MOD 4 Upper Receiver Government Carbine Length 1 in 7 Twist A2 Bird Cage OD Green

Aero Precision M4E1-T 5.56x45 13.5 inch MOD 4 Upper Receiver Government Mid Length 1 in 7 Twist A2 Bird Cage OD Green

Aero Precision M4E1-T PRO CHF M4 5.56mm 14.5 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized OD Green

Aero Precision M4E1-T 5.56x45 11.4 inch MOD 4 Upper Receiver Government Carbine Length 1 in 7 Twist A2 Bird Cage Black

Aero Precision M4E1-T 5.56x45 12.7 inch MOD 4 Upper Receiver Government Mid Length 1 in 7 Twist A2 Bird Cage Black

Aero Precision M4E1-T PRO CHF M4 5.56mm 13.9 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized Black

Aero Precision M4E1-T PRO CHF M4 5.56mm 14.5 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized Black

Aero Precision M4E1-T PRO 5.56x45 16 in Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Kodiak Brown 21D112-1

Aero Precision M4E1-T PRO 5.56x45 16 in Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage OD Green 11D112-1

Aero Precision M4E1-T PRO 5.56x45 16 in Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Black 1D112-1

AERO M4E1-T PRO UPPER RECEIVER GROUP 14.5 KB

AERO M4E1-T PRO UPPER RECEIVER GROUP 16 KB

AERO M4E1-T PRO UPPER RECEIVER GROUP 14.5 ODG

AERO M4E1-T PRO UPPER RECEIVER GROUP 16 ODG

AERO M4E1-T PRO UPPER RECEIVER GROUP 14.5 BLK

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver OD Green

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver Kodiak Brown

Aero Precision SM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 11.5in Government Carbine Length 1 in 7 1/2 x 28 10.3in A2 Flash Hider Anodized Kodiak

Aero Precision Complete Upper Receiver M4E1-T SM-15 5.56x45mm NATO 16in Government Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Anodized OD Green