[JSNAPS]

How would you convert a barrel band to fore-end cap i.e. 336w to 336a. How much would it cost? Would it be worth to just buy a used Marlin 336a? Please post pictures or instructions.

 

[rvb pre]

You will need the following parts:
New Fore-end
Dovetail mount
(2) screws for above
Fore-end Cap

You will need to have a dovetyail milled into the barrel to hold the dovetail mount.

For the muzzle attachment you will need:
Magazine dovetail mount
Magazine cap with mounting hole

You will need to have a second dovetail milled into the muzzle end of the barrel for above

Plan on $100-$150 for gunsmith labor.

 

[Halwg]

Can't be done economically. Best to sell it and buy the one you want.

 

[Rachethead]

If you mean that you want to convert a 336W into an old style 336A model (which model has a 24" barrel) you will also be required to replace the existing barrel with a 24" barrel; but you can leave your existing barrel and convert your gun to a "336SC" (which had a standard 20" barrel). If you go with the "SC" look, there is nothing to do at the muzzle of your 336W; and the parts required are those already noted "New Fore-end, Dovetail mount, (2) screws for above, and Fore-end Cap", plus the dove-tailed mag tube hanger and screw (which means you will be required to cut two dovetails), and make sure you get a forend cap with a swivel stud. If you go this route, you will also be required to shorten your mag tube and spring; and the only evidence of the conversion (if done right) will be the small groove cut for the front barrel band screw on the underside of the barrel near the front sight.

 

[Gaterskiner]

Keep an eye out for A nice 336SC or 336A. You will be money ahead!