Edgar Sherman Design Pebble Grip, Fine Texture, Fits AR Platform, Black ESD-PEB-SLK Like its big brother the Granite Grip" our Pebble Grip fuses ergonomic excellence with advanced manufacturing" now in a smaller form factor. Designed to optimize compact AR style rifles" the Pebble Grip" boasts a proprietary wrap-around texture in two variations: Fine for a moderately grippy surface" and Coarse" for those that need an aggressive texture for gloved hands and grip in extreme conditions.