Magazine Fill Valve O-Ring Rebuild Seal Kit For WE & KJ Works- Just Cause Airsoft

Magazine Fill Valve O-Ring Seal Kit For WE 7 KJ Works Valves.

Magazine Fill Valve O-Ring Seal Kit.

8 x O-Rings for fill valve repair

4 x Internal o-rings

4 x External o-rings

Enough to repair 4 x WE/KJ Works Valves.