Aw, geez, not this again...
I have a bunch of Mod 12's and 1912's, and a somewhat smaller bunch of 870's. If I could keep only ONE shotgun, it would be my 870 Wingmaster Magnum. Almost as well finished as my Win's and definitely more reliable. 870's do not need firing pins replaced.
I'd only modify a Mod 12 if it's a beater or if I could return it to original (like the upgraded factory wood I'm putting on my 20 ga factory VR two barrel set with matching numbers in 98% condition). Keep the original wood in a labeled box. Don't mess with the chokes on a nice Mod 12, especially if you have not yet mic'd the chokes, played with various loads, and patterned the guns.
