Designed to optimize the AR platform, Granite Grip boasts a proprietary wrap-around texture in three variations: Fine and Topo for a moderately grippy surface, and Coarse, for those that need an aggressive texture for gloved hands and grip in extreme conditions. The reduced grip angle of 13.1 degree, compared to a standard mil-spec pistol grip, helps with precision but is versatile enough for all applications. Forgoing traditional manufacturing methods allowed us to create the unique tapered profile, which offers unmatched comfort and control, while the flat front face and chamfered edges inspired by precision shooting help build consistency.Features :Topo TextureMJF 3D Printing with Durable Nylon 12"Includes 1" 18-8 Passivated Stainless Steel Button Head Hex Drive Screw and a Belleville Lock Washer Hardware,Fits standard AR-pattern lower receivers like the AR15, M4, M16, AR10, M110, SR25, etc