PTS Centurion Arms EPF-MThe PTS EPF M (Enhanced Polymer Grip Modular) is designed to directly mount onto an M LOK rail system. The CNC machined aluminum locking system is fused into the polymer to make the grip more solid and durable. Its compact size makes it a perfect handstop length for all hand sizes and minimizes interference with barricades, obstructions, or your tactical gear. Like all PTS polymer products, it is manufactured using high strength, high quality Dupont