Suppressed gas key hole size on the Bren 1 & 2

[Magsz]

What about trying the gas tube for the 11" 5.56?  You would not have your third customized suppressor setting, but the first two ports would be smaller.  They were available on the CZ website.  Although not cheap ($68 IIRC), they may be a solution to overgassed suppressed firing.

Er...wait...

Gas regulator PLUG, or gas tube?  I'm not sure we are on the same page with nomenclature.  Also, where are you seeing small parts for sale?

If the 11 inch guns have smaller ports id LOVE to try one on my 9 inch as previously mentioned, its REALLY overgassed.

EDIT:  The gas plugs that you're seeing on the CZ website are for the 805 and will not work with the bren 2.  Are you seeing bren 2 plugs listed somewhere else?

[EFR]

What I believe you are refering to as gas regulator plug, CZ is calling a gas tube. I saw several on the CZ spare parts pages, but yes, they are all for the 805. I would expect availability of like parts to be available for the Bren 2 at some point in time.

[Magsz]

What I believe you are refering to as gas regulator plug, CZ is calling a gas tube. I saw several on the CZ spare parts pages, but yes, they are all for the 805. I would expect availability of like parts to be available for the Bren 2 at some point in time.

We can hope!!!  Its an idea for down the road.  I definitely want to try a smaller port on my 9 inch.  While the gun shoots well, man is it violent. The bolt velocity is up there.

[Mr_5lade]

What I believe you are refering to as gas regulator plug, CZ is calling a gas tube. I saw several on the CZ spare parts pages, but yes, they are all for the 805. I would expect availability of like parts to be available for the Bren 2 at some point in time.

We can hope!!!  Its an idea for down the road.  I definitely want to try a smaller port on my 9 inch.  While the gun shoots well, man is it violent. The bolt velocity is up there.

Magsz, you’ve got the 7.62x39 one right?


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[Magsz]

What I believe you are refering to as gas regulator plug, CZ is calling a gas tube. I saw several on the CZ spare parts pages, but yes, they are all for the 805. I would expect availability of like parts to be available for the Bren 2 at some point in time.

We can hope!!!  Its an idea for down the road.  I definitely want to try a smaller port on my 9 inch.  While the gun shoots well, man is it violent. The bolt velocity is up there.

Magsz, you’ve got the 7.62x39 one right?


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Yes sir!

9 inch 7.62X39.

[Mr_5lade]

Alright, finally got the Bren 2 out to the range.
Again this is the 5.56 with the 8” barrel. The can is a Dead Air Wolverine (30 cal).
With the 1/32” hole I had 80% reliability. The shells were ejecting softly at 5 o’clock. I’m going to enlarge the hole to 3/64”. I believe that will be perfect for this application. I would think with a 5.56 can on the 8” barrel would have enough back pressure for the 1/32” hole to suffice.


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[Aries144]

I just picked up a 9" in 7.62x39. I'm going to try throwing the gas plug and piston from my 14" 5.56 in and see what happens. (my 5.56 gas plug and piston are different diameters to the 7.62x39 ones, gas blocks look different too)

[Mr_5lade]

I just picked up a 9" in 7.62x39. I'm going to try throwing the gas plug and piston from my 14" 5.56 in and see what happens. (my 5.56 gas plug and piston are different diameters to the 7.62x39 ones, gas blocks look different too)

Sweet. Keep us posted!


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[MarioJB]

Guys, a quick tip for drilling  the suppressor setting hole is to use a solid carbide  center drill.
Is ideal  to drill a hole on a curved surface.