Rocket Airsoft Steel Ported Cylinder - M4

The Rocket Airsoft Stainless Steel Cylinder M4 fits airsoft AEGs that use a barrel length of 300mm - 400mm. Extremely durable for upgraded guns. (please note: packaging may be generic or labeled as 'Rocket Airsoft', but is made by SHS OEM).  Comes ported for use with most M4 length AEGs.

If you need a longer style barrel cylinder, consider the M16 variant.