I don't own one but I have read a number of very spotty reviews, require a lot of fine tuning and often suffer long term issues. the ones that take colt mags like rock river arms and colt are a lot better and you're only sacrificing a single round from max capacity from 33 rounds to 32 over the glock styles.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
I never said half the stuff people said I did-Albert Einstein
You can't believe everything you read on the internet-Benjamin Franklin