Inner Barrel Prometheus EG 6.03 GBB Tokyo Marui M4A1 MWS 370 mm

Increase the range and stability of your Tokyo Marui M4A1 MWS with this Prometheus EG 6.03 GBB 370mm inner barrel.

At 370mm, this barrel also offers extra length over the standard Tokyo Marui M4A1 MWS inner barrel, which is 250mm long. This also affects the power of the replica.

The Prometheus EG 6.03 GBB Tokyo Marui M4A1 MWS 370mm inner barrel, thanks to its stainless steel construction, can withstand the extra wear and tear that gas vapors can cause on standard inner barrels.