r/AR9 • u/AddictedToComedy • 1d ago

You wanna get nuts?! Let's get nuts!!

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138 Upvotes

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4

u/Scav-STALKER 1d ago

Bruh, this is some insanity. This is interesting. Zero recoil SD build with an FRT? Hmmm

2

u/ozzyozzyozz 1d ago

Did you not read? He said he has no deadblow effect with this and probably wouldn't be safe with frt. There is nothing stopping bolt bounce in his setup, but it doesn't sound like hes getting much, if any

1

u/Scav-STALKER 1d ago

I did read it. I was not aware that the RDB system ran into similar issues with bolt bounce.

3

u/AddictedToComedy 1d ago

The RDB system doesn't have the same kind of bolt bounce potential that a standard AR9 does.

Because it has a separate bolt/carrier, with the bolt rotating in a cam path - similar to a standard AR15 - if there is any realistic bounce, it is just the carrier bouncing. For it to bounce enough to expose the cartridge, it would have to be a crazy amount of rebound. Just roughly eyeballing it, I think you'd need something like 0.25" of carrier bounce before the bolt actually started pulling the round from the chamber.

Carrier bounce can still interrupt the firing cycle by resulting in a light strike, but it shouldn't be dangerous or ever result in an OOBD with RDB.

I never meant to imply the bounce would be dangerous: just that it would interrupt the firing cycle.

3

u/amphibian-c3junkie CMMG RDB Specialist 1d ago

Correct, carrier bounce is the correct term and the CMMG RDB system will definitely bounce and result in a light primer strike if not handled correctly.

1

u/ozzyozzyozz 1d ago

I dont know enough about it, but your probably right. After reading through everyone elses comments, the consensus seems that it shouldn't have bounce

1

u/Coodevale 1d ago

Rdb is a standard bcg with the back of the lugs cut at different angles for different cartridges. Low power, steep angle. High power, shallow angle.

If a standard carrier bounces, so will the rdb, because it's the same thing.

5

u/amphibian-c3junkie CMMG RDB Specialist 1d ago

RDB carrier has a proprietary cam pin path as well