Winchester Model 1400 Mk II 12 Gauge Semi-Auto, 28 in Vent-Rib Barrel, 2 3/4 in Chamber, Fixed Modified Choke
This Winchester Model 1400 Mk II is a U.S.-made, gas-operated 12-gauge from the late 1960s–early 1970s, marked with Winchester oval WP proofs and a "Winchester Proof Steel" barrel stamp. It features a 28-inch vent-rib, matted barrel with a single front bead, a fixed Modified choke, and a 2 3/4-inch chamber. The shotgun retains its classic blued finish and includes Winchester-marked furniture with a ventilated recoil pad and spacers.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Fair - Generally clean, some residue or smudges, slight corrosion.
Specific Condition Notes: There are evident signs of wear and handling throughout, including scratches and blemishes. The finish shows areas of loss with surface rust present.
What’s Included
- Winchester Model 1400 Mk II 12 Gauge semi-automatic shotgun
The Mk II designation places this shotgun’s production in the late 1960s–early 1970s, and it carries Winchester’s oval WP proofs on both the barrel extension and receiver ring. The barrel is marked "Winchester Proof Steel," underscoring period-correct factory markings that collectors and Winchester enthusiasts look for.
The 28-inch barrel has a vent rib with a matted rib surface and a single front bead for a clean sight picture. Chambered for 2 3/4-inch shells and fitted with a fixed Modified choke, it is set up for traditional 12-gauge field loads.
The action is a gas-operated semi-automatic design. Capacity is listed at 2 rounds. Controls include a cross-bolt safety with a red ring indicator.
Furniture is Winchester-marked wood with a pistol-grip stock, fluted comb, and checkering, paired with a wood forend. A ventilated recoil pad with spacers and a 13.9-inch length of pull round out the stock setup.
The metal wears a blued finish on both the receiver and barrel, consistent with the period. Overall, it presents as a complete Mk II example with the hallmark features of this series.