The LG-404 P4 Pro Custom Carbon Fiber pattern LaserGrips are a beautiful addition to the Crimson Trace line-up for the 1911 Officer"s Compact and Defender sizes, and feature a stylish carbon fiber pattern, as well as all of the latest features available on our LG-404 standard LaserGrips. *(Laser only, gun not included)Specifications:- Activation Instinctive Activation; Front - Material Hard Polymer w/ Carbon Fiber Pattern, Rubber Front Activation Switch - User Adjustable Both Windage and Elevation - Warranty 3 Years Complete - Master On/Off Switch Yes - Beam Intensity 5mw peak, 633nm, class IIIa laser. Maximum output that federal law and technology allow. - Dot Size Approximately 0.5 diameter at 50 feet. - Power Source Two #2032 lithium batteries (included); over four hours of on-time use and a five year shelf life - Fit Details: 1911 and 1991A1 Officer"s Compact and Defender sized single-stack frames(Fits most 1911 models with grip screws measuring 2-11/16 apart.) - Ambidextrous-safety models require shortened safeties