[Airsoft Revolution] Replacement#VG20MAG1H0 GBB Magazine Valve Base Seal[For Any VFC M4 / HK416 GBB Series] Description: Part No.: SIX-1115 The VG20MAG1H0 Gas Magazine Valve Base is a precision replacement component engineered for VFC and Umarex Elite Force M4, VMAG, and HK416 gas blowback magazines. This enhanced valve base features anti-freeze technology, maintaining reliable gas flow and magazine performance in cold weather conditions. Designed as a direct replacement for worn or damaged original components, it ensures consistent cycling and shot accuracy. Compatible with all VFC M4 and HK416 GBB series platforms, this OEM-spec part restores your magazine to factory performance standards with minimal installation effort. Specification: Colour: Black Compatibility: VFC / DNA / APFG M4 Gas Blowback GBB VMAG Magazine Weight: 4g* Material: TPR Rubber Length: mm Package Contents: