Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. Medium taper profile. 416 stainless steel. Bead blasted finish. 1:7 twist. Threaded 1/2-28. Midlength gas port. .750 inch gas journal.
| Manufacturer | CMMG
|
| Model | 55D590A
|
| UPC | 815835016160
|
| Caliber | 5.56x45mm NATO
|
| Unit/Measure | ea
|
| Stock | 0
|
| Availability | Out of stock |