actually, I thought that there was a combined length consideration that could be optioned if the barrel was under 18". iow, the barrel might be 16" but if the stock was long enough for the oal to amount to whatever the number is (26"?), then you were golden.Anonymous said:No, RobinLau has a illegal gun inless he is a cop. There is no pre ban M-4s only M-3s. Class 3 and tax stamps are for different kind of things, Not for stocks. You have to wait for the AWB to sunset and the gun has to have a number of parts made in America.