New, never used. (4) available. Believe these fit the Kral Puncher Pro, Mega and Breaker Bullpups. Will ship in a USPS small flat rate box for $8.55 CONUS. Buyer pays shipping charges. Paypal FF,Venmo/Good and Services (+3.3%). Asking $25 + shipping each (Or buy two or more and only pay one shipping charge).