Our take: This reinforced fill valve can handle high-pressure gas and is compatible with gas blowback magazines from brands like WE, HFC and KJW. Constructed out of reinforced material, this WE Tech fill valve includes a built-in O-ring for tight air seal and replaces damaged or weakened valves.
- Fits most GBB/GBBR mags (HFC, KJW and more)
- 100% compatibility with WE GBB mags
- Reinforced material
- Tight-seal O-ring
Package includes: 1X fill valve