LG-404 Instinctive Front Activation Fits Models: 1911 and 1991A1 Officer's Compact and Defender with single-stack frames, including: Auto-Ordnance, Les Baer, Colt, Kimber, Olympic Arms, Para-Ordnance, Sig Sauer. * Ambidextrous-safety models require shortened safeties, available from Crimson Trace. Kimber 1911 owners with ambi-safety must see a gunsmith. Distance on-center between 2 grip screws must be: 2 11/16" Our Flagship 1911 Front Activation Laser Grip The LG-404 LaserGrips are the flagship model in our line-up for the 1911 Officer's Compact and Defender sizes, and feature rugged hard polymer side-panels with a rubber overmolded front-activation button. These are the recommended Lasergrips for the most avid 1911 shooters Technical Specs Activation Instinctive Activation; Front User Adjustable Both Windage and Elevation Material Polymer Grip w/ Rubber Overmold Wrap-around activation 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 Fits most 1911 models with grip screws measuring 2-11/16" apart.