Offering a high level of security but an extremely fast draw, the M4X ALH is the latest addition to Galco's burgeoning Matrix holster line. Galco's patented locking device retains the pistol until the ergonomic and intuitive thumb-release lever is depressed, instantly releasing the pistol for a quick, smooth draw. Constructed from the same injection-molded thermoplastic as the other Matrix holsters, the M4X also maintains the same fierce durability and dependability. The locking mechanism has endured torture tests involving thousands upon thousands of draws, and is well-suited to hard, real-world use. Using the same paddle as the highly popular M5X holster, the M4X offers all the quick-on quick-off advantages of a paddle design, while remaining securely anchored on the belt when in use. The slight forward cant allows a fast and comfortable draw, while pulling the handgun in tight for good concealment. The M4X fits belts up to 1 3/4in. SIG fits work only with pistols with non-tapered slides. 1911 design does not fit pre-Series 80 Colts. Not for use with pistols equipped with LaserMax guide rod lasers.