150-250 dollars,depending on overall condition.
Your Winchester model 1400 semi-auto shotgun is valued at between 140-220 dollars,depending on overall condition and a good bore.
Your Winchester model 1400 semi auto shotgun is gas operated.
How old and how much in value is a Winchester semi- auto 12 gauge shotgun model 1400 MK II serial number 483251
Your Winchester model 1400 MK2 was made between the years 1969-1972.These were the only years that Winchester stamped there model 1400 with the MK2.
Best to ask a gunsmith.
100-250 USD or so
I paid $200 for mine, although the tip was cut off the end.
A Winchester Model 140 12 gauge, semi automatic can be worth up to $150. The exact amount that the Winchester is worth depends on the condition of the gun.
The 1400 Mk II was made from 1968-1974
The Winchester Model 1400 with the serial number N564464 was manufactured in 1973. Winchester's serial number system indicates that the "N" prefix corresponds to that production year. This particular model was a popular semi-automatic shotgun produced by Winchester from the 1960s through the early 1980s.
This is really a Winchester model 1400.
The Winchester model 1400 Mark II was only produced during the years 1968-1972.That is the time frame of your shotguns manufacture.