No, even if you did not have to pay the NFA tax. At 14 inches, what would your magazine capacity be?Do you think it's worth the extra cash?
Not so. 14" shotguns are treated the same in Canada as any other shotgun providing the gun was made at the factory with a short barrel (e.g. no hacksaw jobs). I own a 14" and 20" 870 and am underwhelmed with the supposed benefits of the shorter gun. It's very "tactical" but not all that practical particularly if you have to fire at night. Big flame with most rounds. Far less with the 20". I'll keep my 14" gun because I can but don't consider it vastly superior to the 20".I expect 14" shotguns are illegal anywhere