The Odin Works B1 Low Profile Handstop is designed to give you better control through a more ergonomic grip angle while not adding bulk to the front of your rifle or pistol. FeaturesLow profile ergonomic fitSize: 2.38" x 1.15" x 0.90"M-LOK is a modular locking accessory mounting system developed by MAGPULAdjusts in 1/2 slot increments for precise accessory placementNo access to back side of the rail is requiredAccessories can mount with either end facing forwardWorks with both metal and polymer accessories