AR Parts in 5.56x45mm NATO

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 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 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

Ballistic Advantage 14.5" 5.56 M4 Profile Carbine AR-15 Barrel Modern Series 1:7 Twist

Ballistic Advantage 16" 5.56 1:7 Carbine Length Chrome/Phosphate Barrel

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

Aero Precision M4E1-T RM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1-E EM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision 5.56 CMV Barrel, Mid 16"

Aero Precision Rise Armament AP-140 Trigger Rifle Curved Bow 3.5lb Pull Black

Aero Precision M4E1 Builder Set w/ 7" ATLAS R-ONE M-LOK Handguard - FDE Cerakote

Aero Precision M4E1 Builder Set w/ 9" Enhanced M-LOK Handguard Gen 2 - FDE Cerakote

AERO PRECISION M4E1 Threaded 10.5" 5.56 No FA Complete FDE Upper

AERO PRECISION M4E1-T-NO FA-Comp. Upper, 10.5" 5.56 Carbine

Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth