The Reptilia 13" AR15 ARCA-S Handguard is a versatile free-float rail system designed for shooters who require a seamless interface between their rifle and precision support systems. This model features an integrated ARCA-Swiss rail along the 6 o'clock position, allowing for rapid attachment and smooth adjustment on tripods without the need for additional bolt-on adapters. Utilizing Reptilia's patented turnbuckle technology, the handguard achieves a rock-solid, anti-rotational lockup by applying high-tension pressure against a standard 1.25-inch barrel nut. Machined from 6061-T6 aluminum extrusion, it provides a slim profile with M-LOK slots at the 3 and 9 o'clock positions and a full-length Picatinny top rail, all finished in a durable Black MIL-STD Type III hardcoat anodizing.