Models include:
H&R 65, 165 (Auto); U2
Krag for Weaver K2.5; U2
Marlin 39A round barrel, A-1, 50, 81; U2
Montgomery-Ward 46. 41, 45, 36, 390A, 479A, 488A, 489A, 80 slide action; U2
Montgomery-Ward late models 47, 48, 495A, 491A, 496A with 3/4” dia. barrels; U2
Montgomery-Ward early Models 47, 48, 495A, 491A, 496A with 13/16” dia. barrels; U2
Mossberg 25, 26, 42, 46M; U2
Mossberg late 45, 46, 46A, 46B with 3/4” dia. barrels; U2
Mossberg 40, 43, 44, 46BT, 35, 50, 51M, 151M (Auto); U2
Mossberg early models 45, 46,46A, 46B, with 13/16” diameter barrels; U2
Remington 241 for K2.5; U2
Remington 12A, 121, 25, 37, 510,511,512, 521T, 513S, 513T, 514, 550; U2
Savage 40, 45, 4, 5, 6, 7, 19, 23, 33, 219, 29 round barrel; U2
Sears-Roebuck 101.20, 101.23, 101.13, 101.16, 101.19, 101.22; U2
Sears-Roebuck 103-13, 103-4; U2
Stevens 26, 53, 56, 66, 57, 76, 762, 416, 417, 417 1/2, 418, 418 1/2; U2
Stevens-Springfield 15, 84, 85, 86, 87, 872; U2
Winchester 03, 57, 63, 69, 69A, 72, 74; U2
Winchester 52 Sporter, Standard, Heavy, Bull; U2
Winchester 61 round barrel; U2
Winchester 75 Target and Sporter; U2