Impact Weapons Components Reversible M-LOK Barrier Hand Stop is designed with an integrated Quad-Point Grip profile on one half and an ergonomic resistance point on the other half. The Barrier face of the Hand Stop provides a force point to drive the firearm against an object or for extra grip when wearing gloves. They designed the Smooth face of the Hand Stop to provide a comfortable, ergonomic and low profile leverage point for your hand to push or pull against or for placement between your fingers as you grip the firearm. It's in its element when placed at the front of a pistol or handguard. With their exclusive Captured Fastener Design, which retains the fastener in the mount, and reduces the size of the access hole needed for the fastener to one just big enough for the hex key to pass into, reducing the likelihood of the Hand Stop becoming clogged with dirt and debris. The ultra-lightweight design weighs only .501 ounces and directly attaches to any Magpul M-LOK compliant slot.