From G&G we have the Gas Magazine for GV2 Equipped Replicas
The Magazine
This is the gas magazine for replicas equipped with G&G's GV2 GBB Gearbox. It has a 30R Capacity and features G&G’s cold resistant rubber for the gas router. It is constructed from a G&Gs durable lightweight polymer with polymer feed lips and baseplate.
Compatibility
This magazine is designed for G&G’s GV2 GBB Equipped Replicas and there is no known compatibilty with other GBB Replicas.