Im looking into a clone build of a m40, i know i dont have a clip sloted reciver, but am having trouble figuring year of manf.ii have one 6 dig. reciver i may use, and also a 7 digit, the 7digit has no letter in front, and the original bbl, does not have any letters to use the bbl code logs. The bbl is stamped, 9xx46, and serial range 67008xx, also the reciver seems to be set up for rear target sights, as it has two srew slots on the left rear of the reciver, whould this have been factory? the gun may have been peiced togeather as the stock is not cut for any rear peep sight, confused lol.
thanks for any help
thanks for any help