VFC Sig Sauer ProForce P320/M17 Airsoft Magazine Black (Green Gas / CO2) nineball which once open can be

which once open can be resealed to hold the BBs inside and protect them from moisture

especially when you don't have time for either

machined aluminum slide and barrel assembly and interchangeable backstraps

Gearbox: Avalon ECS V2 gearbox w/ quick spring change

from the 9mm version

VFC Sig Sauer ProForce P320/M17 Airsoft Magazine Black (Green Gas / CO2) nineball which once open can beThis magazine is compatible with the SIG AIR P320 M17. Please note that mags are not DUAL power. They are either green gas OR CO2. Compatibility: SIG AIR P320 M17 SIG AIR P320 M18 Capacity: 25 Rounds Power Source: Green Gas CO2 Includes: x1 SIG AIR 25rds Magazine for P320 M17 GBB (Green Gas OR CO2) Black (Licensed by SIG Sauer) (by VFC)