Have been sitting on some 870 Wingmaster wood for about 35 years, came off a late 50's or early 60's gun.
Have a form 1 from late April so I think I'm maybe two weeks out on stamp, Just go one back last week from 1 April
This is what I'm thinking. Need to send barreled to get chopped to 12 1/2" and threaded for tubes, want tubes for close up / backup turkey gun.
Receiver is drilled and tap, thinking a aimpoint T1.