I have this ILWT 8" barrel sitting in my safe not using it. I had it on my Sig MPX 9mm Carbine, but took it off. There is way less than 100 rounds through it. I have a Sig 3-lug adapter, and a mount depending on what can you're using, It's a DeadAir DA408, AND I DO NOT KNOW THE THREAD PITCH, and can't find it...LOL. I believe a new barrel costs $549.00, the threaded 3-lug adapter goes for $79.00, and the mount goes for $139.00 IF YOU CAN FIND ONE. I'd like $350.00 for everything. Possibly open to some trade deals. I like 1911's.