CQBR inner barrel length?

[oates76]

Howdy, I've been searching the forums i can't find a consistant number being quoted for a CQBR inner barrel. When I first made this gun, nobody produced an actual cqbr length inner barrel, so i think i used an mp5 barrel which is much shorter than it should be.

I'm looking to throw in a Madbull tight bore, any help on the length would be much appreciated.

[MultipleParadox]

Could't you just measure your outer and add whatever needed to reach the hopup and see from there?

It shouldn't be that hard. As for my M4, it came with a 315mm inner; I put a 300mm Prommy in it (315mm length doesn't seem to exist anywhere). But a lot of "short" length are available at varying size, I'm sure you could find a near-perfect fit.

[Styrak]

I believe it should be 300mm.

[Kos-Mos]

CQB-R (7" handguard + gaz block + 1/2") is 315mm

CQB (7" handguard + gaz block, barrel threads are flush with the gaz block) i 300mm

[Armoredshell]

My G&G stock length is 275mm, I can fit a 300mm with existing flash hider. Any longer and it would require a silencer to cover the extra length ie. a 363mm would need a 100mm silencer

[oates76]

Thanks for the help guys.

[leblanc74]

I am searching for inner barrel cutting and came upon this thread, I appologize to bring this back from the dead...

In regards to a CBQ inner barrel can't you just purchase a longer inner barrel and then cut it to sized you need?

[LocoYokoPoco]

Originally Posted by leblanc74

I am searching for inner barrel cutting and came upon this thread, I appologize to bring this back from the dead...

In regards to a CBQ inner barrel can't you just purchase a longer inner barrel and then cut it to sized you need?

Yea, but that's a pain in the ass unless your proficient at crowning a barrel. Might as well just buy the correct length in the first place.