Daniel Defense DELTA 5 PRO features an interchangeable barrel three-lug bolt with a 60-degree throw and floating bolt head 5/16-24″ removable bolt knob Picatinny scope base 20 MOA/5.8 MRAD of elevation with four #10-32 bolts M-LOK attachment at six positions along forend with one point on bottom of buttstock Ten M-LOK QD sling points Integral Arca Lock (RRS Spec) continuous along the entire lower portion of rail compatible with an extended pic rail and is compatible with night vision and thermal optics allows for lower height over bore even with scopes with large objective lenses AR-15 Grip attachment interchangeable to accommodate the users preference of aftermarket grips left/right adjustability to accommodate user’s preference and adjustable cheek riser. Includes Magpul PMAG 10 7.62 AC and Daniel Defense Full-Latch Impact plastic case.