Crimson Trace Front Activation 1911 Compact Green Lasergrips - Black - The LG-404G green laser sight for 1911 pistols combines Crimson Trace's celebrated Lasergrips platform with the visible advantages of green laser technology. Using the smallest green laser diode available, the LG-404G emits a powerful green beam while still providing over two hours of run time on (4) #2016 batteries. This product is not compatible with ambidextrous safety levers. We stock shortened ambi-safeties from Wilson Combat in BLACK and STAINLESS. Gunsmith installation is required. Activation Location: Front Activation Activation Type: Instinctive Activation Attachment: Grip Replacement Beam Intensity: 5MW Peak, 532NM, Class 3R Green Laser Dot Size: Approx. 0.50in At 50ft 1911 Compact: Fits Colt (Officer's And Defender), Kimber (Compact, Ultra-Carry And Ultra-Elite), Para-Ordnance (Compact, Single-Stack), Springfield Armory (Compact And Ultra-Compact) Wilson Combat And Most Other 1911's With Grip Screws Measuring 2-11/16in Apart