The Umarex 15rds 6mm Co2 magazine for Umarex HK45 non-blowback version is designed to work with the non-blowback, fixed slide version of the Umarex HK45 Co2 pistol.
The Umarex 15rds 6mm Co2 magazine for Umarex HK45 non-blowback version is designed to work with the non-blowback, fixed slide version of the Umarex HK45 Co2 pistol.