The ZeroLok 15/13.5 is built for shooters who run their rifle like a machine—fast, precise, and with full-length control. At 13.5 inches, it’s the ideal match for 14.5″ and pinned 16″ barrels, giving you extended real estate for lights, grips, bipods, and mission-critical accessories without compromising strength or maneuverability.

Equipped with two Picatinny top rail sections and an integrated offset red dot mounting platform (compatible with the 51Fifty Red Dot Riser), it’s optimized for multi-optic setups and fast target transitions. Dual QD sling cups and full-length M-LOK slots offer modular adaptability, while the patented ZeroLok ARCA interface delivers zero flex, zero shift, and absolute repeatability under recoil, impact, or stress.

When you need every inch to count, the ZeroLok 15/13.5 delivers battlefield-grade performance in a lean, lethal package.

Own the front end. Lock in with ZeroLok.