Experience unmatched reliability with the ProMag Industries GLK-A19, a high-performance magazine designed specifically for Glock 19. Crafted from premium high carbon steel, this magazine ensures durability and precision for every shot. Employing advanced manufacturing techniques, each ProMag magazine features a robust construction that withstands rigorous use. It's built to last and performs seamlessly with your firearm. Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicon wire Made in USA Elevate your shooting experience with confidence, knowing you are backed by a lifetime guarantee against defects.