The AR70 receiver blank is made on 4130 steel in .050 steel. This blank is full length and made in one piece. It is a square tube and is welded on the bottom. We have been making the AR70 since 2007. You will receive the blueprint with the purchase of the AR70 receiver blank.
*AR70 Rails sold separately
*AR70 blank is not an AR70/90 blank it is a straight AR70 as described.