Yes, The receiver pins are the same as the Remington 870, so any stock that will fit the 870 will fit the 7400
No, the Remington Model 1100 stock has a hole (recepticle) through the inside of the stock in the pistol grip area to accept the action spring tube. The Remington Model 870 stock has no need for this hole so the 870 stock will not fit on the Model 1100 action.
No, Winchester 1400
Yes they are interchangable.
NO
No, the re4ar receiver face on the Model 11 Remington has a different configuration. The Remington Model 11 is a semi-auto with a tube containing a bolt return spring located at the rear of the receiver. The Model 11 stock has a receptacle to accept this tube, the Model 870, being a pump action, does not have this receptacle.
Yes it is a direct fit.
No. The 11-87 has a recoil spring & tube in the stock, the 870 uses a single bolt.
No, a Marlin 881 stock cannot fit in a model 81. The stock would fit an 881, not an 81.
Check on ebay. You will find plenty of synthetic options and occasionly some wood sets. Most 7400 forearms and stocks will fit 742 models.
Sorry, no answer from me, but I would like to know the answer to this question as well.
A model 7 stock would not fit a 600 Mohawk. The stock and the trigger guard do not line up correctly, although the stock may fit on the gun.