M4 Buffers in 14.5" & 11.5" Barrels

[Jack_Bauer]

Which buffer is recommended for use in factory Colt M4's with factory Colt 14.5" & 11.5" barrels with the use of an AAC M4-2000 suppressor with NATO M855?

[markm]

Depends on the barrels. I run an H3 in all my 14.5/11.5 set up with can... but it's a bit over gassed.

H2 minimum, I'd say.... even if they both have in spec ports. H3 if they're aftermarket guns.

[Jack_Bauer]

Originally Posted by markm

Depends on the barrels. I run an H3 in all my 14.5/11.5 set up with can... but it's a bit over gassed.

H2 minimum, I'd say.... even if they both have in spec ports. H3 if they're aftermarket guns.

Factory Colt 6920 with factory Colt 14.5" & 11.5" barrel. Are you saying you would need an H2 or 3 in both setups?

[markm]

An H2 would be a perfect starting point. I run and H2 in my unsupressed 14.5" Colt M4 upper.

[Jack_Bauer]

Originally Posted by markm

Depends on the barrels. I run an H3 in all my 14.5/11.5 set up with can... but it's a bit over gassed.

H2 minimum, I'd say.... even if they both have in spec ports. H3 if they're aftermarket guns.

A bit over gassed?

[markm]

Originally Posted by Jack_Bauer

A bit over gassed?

Yeah. The 14.5 seems to have a big port, and the Can makes it worse. It doesn't gas me out, but it seems to cycle pretty fast.

But even on a spec 14.5, S.A.W. said they recommend and H2... And that's with NO can.

Anything short like 11.5, and they recommend an H3.

[Jack_Bauer]

eah. The 14.5 seems to have a big port, and the Can makes it worse. It doesn't gas me out, but it seems to cycle pretty fast.

But even on a spec 14.5, S.A.W. said they recommend and H2... And that's with NO can.

Anything short like 11.5, and they recommend an H3.

Mark Gale told me H2 for a canned 14.5" and H3 for a canned 11.5" so I got a order in. What brand barrel do you have?