02-28-2014, 03:39 PM
looks like S/S button bore to me. I'm actually more curious if it would reliably cycle on semi SBR lower with a suppressor. Saving the FA work for the 12" chrome lined upper on hand IF the Wolf steel case blaster ammo ever comes available. I guess the only way to find out is order one and give it a try.....would certainly be a compact package. I'll give them a call today and see if they have any additional info they can provide.