The NcSTAR Picatinny Hand Stop with QD Sling Base mounts onto the 1913 MIL-STD MIL-STD Picatinny rail of a handguard. It has a low profile, and compact, design to improve weapon control. It can be mounted in either direction on the rail for versatile holding. It features an integrated QD sling mount and is made from high-quality polymer.