Revanchist Aluminum Outer Barrel For Marui TM M4 MWS MTR GBBR ( 6.5 / 7.5 / 8.5 / 9.5 / 10.3 / 11.5 inch ) ( Black / Bronze / Silver ) Outer Barrel/Rail Size inch:6.5 inch - Front top rail cutout

- Front top rail cutout is perfect for low profile gas blocks

Umarex MP40 40 Rds Spare Co2 Magazine (by WinGun)

and hang securely when maneuvering or engaging in other tasks

Every detail is made for true SAS lover

so switching takes less than 10 seconds for long-range Milsom event or CQB gameplay

Revanchist Aluminum Outer Barrel For Marui TM M4 MWS MTR GBBR ( 6.5 / 7.5 / 8.5 / 9.5 / 10.3 / 11.5 inch ) ( Black / Bronze / Silver ) Outer Barrel/Rail Size inch:6.5 inch - Front top rail cutout1. Perfect Fit Design for Hopup Unit , more accurate 2. Perfect Fit Design for Outer Barrel, did not shake anymore , more accurate 3. Come with two adaptor to make different length for the outer barrel ( Such as 6. 5 7 inch , 7. 5 8 inch etc. ) 4. For Tokyo Marui TM MWS MTR GBBR