The Super Duty Rifle features the latest in weapon technology. The rifle features a Nanoweapon coated Surefire Closed-Tine Warcomp mounted to a 16" Mag Phosphated Cold Hammer Forge, Chrome Lined Geissele barrel. The Geissele Length gas system and Geissele Super Compact Gas Block (with bomb-proof installation) ensures reliability and optimal performance in extreme conditions and heavy use. Exclusive to the Super Duty 16" Rifle is the brand new SSA-E X with Lightning Bow trigger. The nanocoated, two-stage trigger features a wide body and bow shape that finds the perfect balance between a classic M4 trigger and a flat body trigger. The BCG is machined from mil-spec 8620 steel, with a properly torqued and staked, chrome lined gas key. The Super Duty lower is precision machined from 7075-T6 aluminum and features Geissele's Ultra Duty Lower Parts Kit featuring our Ambidextrous Super Configurable safety and Ultra Precision trigger guard. A high quality mil-spec Geissele Buffer Tube with a Super-42 in H2 buffer ensures this rifle is properly tuned out of the box. The 15 MK16 Super Modular Rail, that mates to the Super Duty Upper Receiver via a center aligning tab that removes any chance of rail rotation.