COWCOW HopUp buckings are manufactured from high quality anti-oil rubber resistant to swelling and damage during heavy usage. The lips are designed for a better fit with the nozzle and prevent jamming. Flared chamber allows smoother BB.

This package includes 3 buckings in different hardnesses (70° / 60° / 50°) for use with different power levels.

Compatible with

• TM Hi-capa
• TM G series
• TM M&P9
• TM M4A1 MWS