Hello, I'm new here but wanted to tell you guys about the only problem i have had with this awesome weapon. went out and put 200 rounds through her the other day and when i got home i loaded the mag and checked the chamber(to make sure it was empty). And when i decocked it I heard a funny noise, then something was rattling around so i pulled the mag and a tiny rectangular piece fell out( about an 1/8 inch by 3/8). Then nothing would function I was very sad. So by looking at the exploded picture I deduced it to be the on the rear end of the trigger bar. pulled her all the way down and sure enough, BROKE. Anyways, the new one is on the way and i am in know way deterred from hk. I love this fine piece of machining awesomeness Just thought i would tell you guys about it and wonder if anyone had the same issue?