The 9mm Alice Comp/Hider suppressor design helps hide muzzle flash while compensating for muzzle rise. Turned from solid stainless steel bars on our lathes, then finished in our rotary mills to precision tolerances. We Nextride QPQ coat and laser engrave each part for a long lasting finish. Note: The Sig MPX and MCX have a tapered barrel. We include an adapter collar to properly install this product on your SIG. Two orderable models NLX731 (1/2x28) and NLX732 (13.5x1 LH). Compatible with AR-15 platforms.