- Machined from billet 7075-T6 aluminum vs. the more commonly used 6061 for a 70% increase in strength.
- Upper receiver has been re-designed to incorporate increased wall thicknesses for added strength.
- Lug Angle at the shell deflector has been altered to 60.0° for increased effectiveness.
- Black Hard anodized with a surface hardness of 60 Rockwell.
- M4 Feed Ramps
- Comes Without Forward Assist & Trap Door