80% 308 CNC Lower Receiver BLK
- Matches with Aero Precision M5 upper receiver.
- Works with DPMS parts & magazines
- Hard black anodize type III (mil spec) DI sealed.
- Broached magwell
- Integrated trigger guard
- 6-32 threaded pin/screw, for the bolt catch. (replaces roll pin)
- Added nylon tipped torsion screw in rear of lower.