Waldo Customs Hush Fill Valve O-Rings for Hi capa
Out of stock
Includes 5x Hush Fill Valve O-Rings.
Once these O-Rings are placed over your fill valve you will be able to silently fill your magazine. It also will not cause any gas spills. This is a renown inconvenience for some brands of GBBs, more specifically TM (but will work in competing brands).