Replacement external o-rings for the gas fill port on GBB (Gas blow-back) magazines and grenade shells. Compatible for WE, KJW, KWA, HFC, Bell, Tanaka, Marushin, Maruzen, WELL, SnowWolf and others. NOTE: Will not fit Tokyo Marui magazines due to smaller diameter of fill hole.
• MSRP $5.99
• Materials: Aerospace grade silicone
• Max Pressure: 1400psi
• Max Operating Temp: 450º F
• Min Operating Temp: -65º F
• Package Includes: 6 x O-rings