[SEALs]

I had the same problem with the chamber on my tanaka M24, Its due to the fack that he tighten too much the screw in front of the mag well and that puts stress on the plastic block. I corrected the problem by buying the G&G heavy barrel set which came with the outter, inner barrel and a metal chamber block. Now its freeflot which on any other tanaka rifle isnt due to the fack that one of the sling mounts upfront is screwed with the barrel. With that, the rifle is about 8 pounds heavier!