SHS Steel Gas Inlet Valve for Airsoft GBB Magazines (Options) springer The Sig Sauer 21rd Metal

The Sig Sauer 21rd Metal P320 M17 Magazine

Durable high strength polymer construction

The Odin Innovations Sound-Dampening Buffer is constructed out of high-quality silicone rubber

Slip resistant surface

SHS Steel Gas Inlet Valve for Airsoft GBB Magazines (Options) springer The Sig Sauer 21rd MetalReplaces the fill valve in your Airsoft gas magazine or grenade shell. Precision machined, O ring included Stainless steel construction Suitable for most gas powered magazines and gas 40mm grenade shells Reinforced valve capable of withstanding Co2, Top Gas, and 134a 12. 3mm Length Valve, O ring (pre installed) Head diameter options Type A 6. 4mm Head diameter options Type B 5. 45mm