Aac g19 threaded barrle - Advanced Armament Corporation Threaded Barrel for Glock 19 9mm, 4.53 Inch, M13.5x1LH TPI 103551

Absolutely perfect, I chose the for my EDC G 19 pistol it is drop-in, No fitment whatsoever it is very accurate and the finish has worn well so far. All above is true and so is this part, I'm always having to tighten the thread Procter, in my holster Not even firing it constantly is coming loose.