Prometheus Stainless Hard Cylinder Type D - 251mm-300mm September 2021 and it does not fit

and it does not fit standard recoil shock MP5 models or other AEG brand MP5

A 35rd magazine for the Tokyo Marui AKM & Tokyo Marui AKX GBBR

100rd and 200rd magazine from most brands

It sports a huge 40rd magazine and a chrome effect slide

Prometheus Stainless Hard Cylinder Type D - 251mm-300mm September 2021 and it does not fitPrometheus Cylinder Type D (251mm 300mm). Heatsink design. Accommodates all barrel lengths. The Prometheus Stainless Steel Cylinder series provides the ultimate option in maximizing your air volume. choose from a variety of cylinder types to match your inner barrel length and utilize 100% of your air volume with minimal over under volumization. The heatsink design dissipates heat and reduces wear on your piston head and o ring.