Serpa Auto Lock solidly secures firearm, only releases during draw cycle. For Gun Make: Smith & Wesson, Glock. For Glock 20/21/37/M&P. 45-Pro. Type: Holster. Aids in rapid draw, target acquisition and re-holster.
Received holster and it is way to tight for a 21. Made some adjustments and still no satisfaction. It needs to be made a little bit looser to be correct. Other than that, good holster and material.
I have a S&W M&P .45 and it fit like a glove. I would highly recommend this to anyone who works on a ranch or just wants to open carry. I personally have a different holster for concealed carry, but do work on a ranch and find it a lot more convenient