Kinetic Development Group Sidelock Scope Mount Base is engineered specifically for Aimpoint Patrol Rifle Optic (PRO) and Comp M4 optics. Precision-machined from aluminum with a black anodized finish, it features a 4.30 length, 0.89 mount height, and a weight of 4.10 oz. It utilizes KDG's Sidelock quick-detach lever system for toolless mounting to Picatinny rails with rock-solid return-to-zero performance. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics, mounts, or bases. Verify proper mounting engagement and torque specifications before use to ensure gear security and safety.