Some folks have bobbed the hammer a bit and modified the hammer spur to fit lower to increase clearance. Need to make sure if you lower the spur it doesn't interfere with the barrel release when you pull the trigger. The New Redfield scopes have a small eye piece and fairly decent optics, however, I don't think they make one specifically rated for a shotgun. I do have one of the new Redfields on a 45-120 and it is still performing well after several hundred high recoil rounds.
Why be difficult, when with a little extra effort you can be impossible?
Wife's Handis; 300 BLKOUT
MINE: 270W, 308x444, 44 Bodeen Belted Magnum PI (Profino Improved), 444M shorty, 444M, 45 ACP shorty, 45 Cal Smokeless MZ, 50cal 26" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50-70 Govt Shikari, Tracker II 20 ga shorty, 12ga Tracker II shorty WITHOUT scope, 10 ga Pardner Smoothbore slug gun, 10ga Pardner Turkey & 24ga Profino Custom rifled slug gun.
Active Trader until: July 25, 2013