WTK: 1903A3 Redfield Base Mount

[Chuckindenver]

sorry you have some miss information.
the A4 was NEVER issued with anything but a Weaver 330C..M73B1.. no matter how you try and cook it, no commercial Lyman AK made at any time period would have been used on the A4 sniper rifle.
though you may read that they used commercial made scopes.... it just didnt happen.. the M82 and M84 were used as replacement scopes, however, the M82 was NOT a commercial Lyman AK.
the China made bases are junk, no other way of saying it, the screws are soft, steel on the base is soft, setting a base on a rifle thats not drilled and tapped, is not a good way to find fitment,
since your building a replica anyway, what base and scope you use doesnt matter, only that it functions, and stays put, if a china made base is ok for you, then thats what you should use.
its been my personal experiance after trying to make a few fit, that they arent worth the trouble, when i can spend a little more money and get a U.S. made base that fits well, and is made of quality metal.
another base that iv used is the Leupold base, it does have a 3 screw mounting system, with 6-48 threads, but works very well for vintage sniper match use. and is quality as well,
the products being made in China today, are not the same quality as other Asian made products of the last 40 or so years.