As is the self contained recoil system that is placed above the bolt carrier, not behind like in a standard. This is the long awaited 300 blk version of foxtrot mikes' widely popular bufferless upper receiver for the ar platform. Use with any standard ar lower receiver, on the foxtrot mikes. The integrated, proprietary recoil system allows for the upper to function without the need for a lower with a buffer tube. This upper can function just fine with a stock or brace folded!
Mike 15 Bufferless Upper
As is the self contained recoil system that is placed above the bolt carrier, not behind like in a standard. This is the long awaited 300 blk version of foxtrot mikes' widely popular bufferless upper receiver for the ar platform. Use with any standard ar lower receiver, on the foxtrot mikes. The integrated, proprietary recoil system allows for the upper to function without the need for a lower with a buffer tube. This upper can function just fine with a stock or brace folded!