Upper Parts
AR-45 4.5″ 45 CAL ACP 1:16 Twist 4150 BARREL / NITRIDE
AR-45 4.5″ 45 CAL ACP 1:16 Twist 4150 BARREL / NITRIDE
- 4.5" LENGTH
- MADE FROM 4150 CMV STEEL HARDENED TO 26-32 RC AND STRESS RELIEVED.
- BLOWBACK
- 1-16 RH TWIST
- CHAMBERED IN 45 ACP
- MEDIUM PROFILE
- 5/8X24 THREAD