- Our Rexus line of chrome-moly-vanadium 4150 tactical tough steel in our medium-light field profile for all-day carry
- Weight 1 lb 13.0 oz
- Black nitrided inside and out, including barrel extension with M4-style feed ramps, for all-weather durability
- Mid-length gas system (MLGS) for smoother recoil impulse; gas block diameter 0.750"
- SAAMI chamber; headspaced for Mk136, also called Type 2, AR15-style bolts with a boltface depth of 0.136 inches
- Button-rifled. Hybrid 5R 1:7.5 rifling with our unique 5R-EE (Easy Engraving) reduced-height rifling for decreased bullet deformation
- "Bull" chamber section reduces barrel whip for consistent accuracy while being closer to gun's center of balance for easier handling; also puts a good chunk of protective steel closest to the operator, where it counts in the event of an overcharge
- Muzzle threads 5/8x24 with 11-degree target crown
- Grendel "MONSTER" skull logo near muzzle!