New to FN 5.7. Just purchased my first 5.7 handgun last week it is a IOM model with the circle trigger guard. Will shoot up pics after I get her back from gunsmith who is going over it. While I do plan to grab a MKII in the future when one becomes available and funds allow it I would like to replace barrel in my IOM as it has seem some use and the previous one owner did not take care of it, I don't think it had ever been cleaned until I got it.
Will all barrels, actually will all or most parts period from the USG and MKII work in the IOM? And where can I even find a barrel threaded or standard? I've looked everywhere and I can't even backorder one. I have read older posts on here saying, or assuming more manufacturers would be making these barrels and they should be somewhat plentiful by now but here we are in 2014 and I can't find one anywhere, other than some JA selling a EFK threaded for almost 700. While mags and most internals are easy to find the barrel is not. Is this something I should expect to continue to see or is there hope? Thanks.