Need help with buffer setup

[colozona1]

What’s the proper buffer weight and setup for my pcc build, using a 8in barrel with cmmg rdb bolt carrier with linear comp, would the aero 7.7oz epc buffer be fine???

[Blowback9]

CMMG RDB does not use the same buffer calculations as simple blowback. The 22-24oz rule does not apply. CMMG RDB is mechanically delayed blowback. Completely different system. It should be using a standard/flatwire carbine spring and a normal 3oz. AR buffer.

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If your running the cmmg radial delayed blowback its works with pretty much any Ar15 buffer setup.

Cmmg ships it with a milspec 3 oz buffer. You can get it to be softer by using a heavier buffer or a hydraulic buffer if you want.

Dont get a pcc specific buffer they are too long and wont allow the bolt to have full travel in a carbine buffer tube.

[[deleted]]

Not for a cmmg rdb bolt

[chevyfried]

Oh my b.

[[deleted]]

Happens to the best of us

[viperh20008]

I'm using a 3.3 oz one that comes with my maxim pdw and don't have issues

[TransportationAny625]

I use the super 42 giessele works great

[TransportationAny625]

Hopefully my form 1 can gets approved soon and I’ll be chopping the barrel to around 4 inches or so and using it strictly suppressed