Perfect for building your custom dedicated 22LR AR15 upper group.
- 16.1??
- M4 Profile
- 4140 Chrome Moly
- Salt Bath Nitride Finish inside and out
- 1:16 Twist
- 22LR Sprorting Chamber
- Threaded 1/2-28
- .750? Carbine length Journal
Perfect for building your custom dedicated 22LR AR15 upper group.