Fits perfectly - m16x1lh - Griffin Armament .45 Caliber 3Lug Barrel Adapters

I picked this up for my Kriss Vector SDP. I ordered the M16x1LH, and it went right on with no issues. I plan on leaving it on over the thread cap that comes with the Vector, as the barrel is already almost flush with the receiver. The Griffin Adapter gives you some additional length that looks good and doesn't make you worry that you might shoot your thumb off. I'd highly recommend! I have a Griffin Revolution suppressor still in holding, but I'm looking forward to getting it mounted on this thing when it gets in.