80% AR15 CNC Lower Receiver BLK
- Hard black anodize type III (mil spec) DI sealed.
- Mil-Spec broached magwell
- Glass bead blasted.
- 6-32 pin/screw for the bolt catch. (replaces roll pin)
- Added nylon tipped screw in rear of lower. (removes slop between upper and lower after a lot of use)