Yugo SKS grenade launcher?

[slowpoke]

There appear to be plenty of them on Gunbroker.

http://www.gunbroker.com/Auction/ViewIt ... =511470880

Tempting, but my muzzle device is spot welded in place. I'd have to grind out the weld to remove and replace with a proper one. There is some question about whether doing so would be 922r or otherwise ATF compliant.

It would be 922r compliant if its not been modified in any other way. No detachable mag and only one evil feature(granade launcher)
but IANAL