Prometheus Perfect Metal Chamber NEO (Complete Kit) H&K Airsoft Guns please ensure your suppressor cap

please ensure your suppressor cap is able to twist off into ‘two-pieces’ for the Suppressor Extension Unit to fit

Dimensions: 12mm deep x 20mm wide x 121

Includes a 300 round hicap magazine (M4 style)

and the rail mount is nice and secure

Prometheus Perfect Metal Chamber NEO (Complete Kit) H&K Airsoft Guns please ensure your suppressor capPrometheus Perfect Metal Chamber NEO (M4 Hopup Chamber, with Pressure Arm and Gear). This is a replacement hop up chamber for all M4 type AEG airsoft guns. It's a very high quality metal made chamber with all the parts to make it work better than your original. Made in Japan for highly upgraded guns, custom guns, etc. We recommend the Prometheus Purple bucking for use with this. M4 Hopup Chamber, with Pressure Arm and Gear