I have been scouring the internet and calling all the local shops to try and find the sig mcx in 300blk. The reason im looking for this particular gun is because i currently own and Anderson Arms in 300 blk. With a CMMG gas piston kit and it just isnt that reliable. I know of two close friends that have reliability issue with the 300 blk. The issue is not picking up a round every once in a while. But love the quality of Sig and i want a reliable semi auto riffle. So with all that said im looking for #1 any experience with this riffle and #2 where to get my chubby little digits on it to in the end buy but to play woth to see if its what i really want or if there is a good 300blk that is piston driven to substitute it with. Thanks.