Advanced Armament Corporation Barrel, 9mm, Threaded, Fits Glock 17 1/2x28, w/Thread Protector

This barrel delivered everything to be expected. Fast delivery and very well packaged. I am still waiting for my stamp for a suppressor so the threaded end will have to wait to be tested. So far I'm pleased.

My new barrel adds more velocity and is a perfect fit for my new suppressor and flash hider, also the Advanced Armament barrel came with a perfectly fitted Thread Protector. The finish is smooth and matched the color of my Glock 17,it also was an improvement in accuracy the lands and groves were smooth