Knight Rifles Breech Hex Head Plug FPJ W209/TK/USAK/BOR - M900021

Fixed vent breech plug designed for Knight muzzleloading rifles including W209, TK2000, USAK, MK, LK, BK, BH, and LH models. Provides 40% longer lifespan and reduced blowback compared to standard plugs, with a fixed and non-removable vent liner. Compatible with modern black powder formulations.