Machined to fit seamlessly while bringing both artistry and rugged engineering to John Browning’s classic 1911 design Green Master Series Lasergrips are sure to impress. Featuring ergonomic and aggressively durable G10 side panels with a rubber overmolded activation button; these are the ultimate laser sights. Standard to Crimson Trace Lasergrips the LG-904G features Instinctive Activation. This means that the laser sight automatically springs to life when the weapon is held in a natural firing grip. Lasergrisp fit 1911 and 1911A1 Full-Size Frames Including: Auto-Ordnance Les Baer Colt Kimber Nighthawk Custom Olympic Arms Para-Ordnance Dull-Size/Single-Stack Safari Arms Sig Sauer Smith & Wesson Springfield Armory Taurus Dan Wesson and most other 1911’s with grip screws measuring 3-1/16″ apart. Master Series Lasergrips are fully compatible with ambidextrous safeties.