Description
The Super Duty uses a 13.5″ SMR MK16 Modular Rail with M-LOK compatibility and slim design to benefit the user. It uses M-LOK attachment points at the 3, 6 and 9 o’clock positions as well as the 45 degree quadrants. A Super Duty lower is precision machined from 7075-T6 aluminum and includes a Ultra Duty lower parts kit and ambidextrous safety. The high quality mil-spec 6 position buffer tube uses a Super-42 action spring and H2 buffer.