Well last month I put a LWD barrel in my 36. It was a rough start, and after polishing the feed ramp and firing 450 rounds for break in, the barrel is working flawlessly. In fact I have fired a couple hundred rounds of lead SWC with no hiccups. Not to mention that the barrel seems to be more accurate than the stock Glock barrel. Best $110 bucks I have spent on the ol' girl.