WTT/WTS: Surefire SF3P-762-5/8-24 for a SFMB-762-5/8-24

[bblv]

I have a brand new in factory packaging Surefire flash hider/suppressor mount (SF3P-762-5/8-24), looking to trade for the muzzle brake version (SFMB-762-5/8-24).

Looking to trade straight up, or I'll sell it for $130.