The LMS-G43 works exclusively with Glock 43/43X/48 pistols and replaces Glocks spring guide assembly with a high-powered red laser sighting system that offers increased accuracy and control. Users will find our laser for Glock 43X, 43, and 48 models easy to handle and install, even without advanced knowledge of weaponry or any special tools. This durable Guide Rod Laser is constructed with rugged, precision components including a stainless steel tube.