I saw some thing interesting at the range some time ago and meant to post it here. Tom Benner brought along a modified GSG-5 carbine. Roger at Revelation Arms had modified the fake silencer, welded it to the barrel, which was threaded, keeping the overall length of the barrel to 16 inches so as not to have to register it as a SBR, as I understand it. (All NFA rules apply) Using the silencer removal tool, which was located on the side of the butt stock, you can remove the Revelation Arms .22 silencer and use it with any other correctly threaded rifles or pistols. You guys may have seen something like this before, but it was new to me and seemed pretty innovative.