this is a well-built, sturdy mount. i use it on my HK USP Compact and it does exactly what it's supposed to (attach my TLR-2). i can also say the TLR-2 mounts perfectly to it and under fire there was no movement (i fired about 20-30 rounds with the light attached). the fitment of this mount is very tight and perfect so if you have a USP Compact and find that you need this mount for your attachment, you can order with confidence. This thing is great. I wish it were not so expensive. But for me, I can't put a price on the ability to identify a target at night - i would never want to point a gun at my loved ones.
This review was written in the old system and had content requirements that are different than reviews written today.