TKOverKill

any suggestions for the M4 SOPMOD inner barrel? Is 6.03 the only thing available (that is all I could find at laylax.com). Is there a particular diameter you would suggest? is 6.01 a better choice than 6.03?

Thanks

I recently changed with a 6.03 / 407 mm inner, it's sticking out abt. 1 cm from outer, but can be masked with a different flash hider.

Regarding performance, I couldn't observe too much improvement, maybe 3-5 more mps and increased accuracy (still to test when have the chance)...

Next Satuday, I also want to clarify about changing spring or other parts

I would suggest a longer barrel instead of a tighter one. Since it is blowback, accuracy is not much of a priority IMO. A longer barrel will provide more efficient use of air, resulting in higher muzzle velocities.

How do you attach a longer one? Do you have to hide it with a silencer or something?
More info and even a recommended brand would be appreciated.