The actual part fits well into the gun no issues there but I had to file a huge portion of the catch away to fit any magazines. The tapco 20s and les baer 30s likely won't work as I'd have to file even more off to fit. Tried filing the magazine to fit and it ends up too thin and I wasted a mag trying it. Ended up taking it out and putting the original back in. Wasted 100 bucks between the part and the magazine