Help ID'ing a couple of flash hiders

[fireguy]

Have been tidying up the gun room, and came across a couple of leftover flash hiders from my AR-building phase. Have no idea what they are, and was hoping some AR gurus here might lend a hand (also regarding values, as I'll likely be putting them on the EE). I'm pretty sure one is just a run of the mill flash hider, but the other one is a total mystery.

Thanks much in advance for any (constructive ) input!

 

[mmattockx]

The top one looks like a garden variety A2 flash hider.


Mark

 

[yukoncoyote]

Bottom one looks like an XCR take off.

 

[fireguy]

Yes! Yukon! Memory triggered - did have an XCR that it came with as the previous owner had upgraded! Thank you! As a take-off, value will be on the low side, as opposed to some fancy-shmancy aftermarket, hot rod hider .

Thanks again