The new LaserMax for the Glock 37 in .45 G.A.P., with the new captive spring, is easy to install and is proven rugged and reliable on the range and in the field. The LaserMax gun sight, model LMS-1141P, performed a succession of testing with several thousand rounds of the G.A.P. (Glock Action Pistol) ammunition. All LaserMax sights can be installed in a matter of minutes and are compatible with all tactical lights and grips. They do not require speial holsters or alterations to the gun. LaserMax sighting systems increase accuracy in low-light conditions and often deter aggressive suspects simply by their deployment.