wondering what the value of an Arsenal made SGL31-61. seller has one with only 300 rounds of non corrosive through it. asking 1400$. AWB compliance issue , yes MA still has it almost everything is good. but i have to pin the muzzle break on , for additional cost to be mass compliant. it already has the bayo lug removed and its a fixed stock . He and 2 dealers i was talking to said , that since the 24mm threads on the fsb were never specifically made to have a flash suppressor on it , that they didn't need to pin the muzzle break on it, as it was awb exempt? kind of what people said about that romy 22mm threads being exempt? regardless i ran away from that sale lol . told him to bring it to my dealer to have the break pinned or pin it on himself before i buy it. only question i wonder is if i have to pin the muzzle break on , and the 5.45 is mostly corrosive , should i just buy a thread protector instead of perm welding the 74 style break which would be really hard to clean inside ? at least with just a thread protector the barrel is accessible to clean? what do you guys think?