Who's adapter is this?

[david walter]

It came off of a LaRue 6.5 creedmoor, but does not look at all like a LaRue adapter.

AAC 90 tooth?

It is threaded 5/8 x 24 if that helps.

Two of the prongs are the same length, the other is slightly shorter.

 

[BurnOut]

SilencerCo is my guess.

 

[Trigger Monkey]

Are the tines different lengths? Can't tell from the pic but if they are it's a SilencerCo ASR FH.

 

[spife7980]

https://www.store.silencerco.com/products/specwar-trifecta-flash-hider?variant=703750989

 

[david walter]

Are the tines different lengths? Can't tell from the pic but if they are it's a SilencerCo ASR FH.

Yes.

I'm told it is the SilencerCo