Those would work on most old A-Sq rifles! For the longest time you couldn't find them (Pachmayer sold 'em long ago but then discontinued) so many filled in the stock and installed more conventional mounts...However, a military contractor/black gun dealer began selling the modern variant much more recently and they're really nice, too! GLWS. They'll go! Could you please give diameter of the studs (as I believe there are actually 2 different sizes out there)? TY (I might just give you 49.99 if they don't sell lol)