FN Browning Auto-5 Magnum Twelve 12 Gauge, 30 in Vent-Rib Barrel, 3 in Chamber, Belgian 1966, Blued Steel/Walnut
Made in Belgium by FN for Browning Arms Co., this 1966 Auto-5 Magnum Twelve pairs a 30 in vent-rib barrel with the long-recoil A5 action and 3 in magnum chamber. It features the Speed-Load system, a magazine cutoff, and the classic humpback receiver profile, with original Browning ventilated recoil pad and white line spacer. The serial prefix 6V denotes the Magnum Twelve configuration.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Fair - Generally clean, some residue or smudges, slight corrosion. Smoothbore; no rifling present.
Specific Condition Notes: This gun was previously wrapped in a camouflage skin. Removing the wrap left adhesive residue on the walnut stock and fore-end. Portions of the barrel, receiver, and stock still have camo wrap in place. There is a small crack in the stock near the receiver. Function remains excellent.
What’s Included
- FN Browning Auto-5 Magnum Twelve 12-gauge semi-automatic shotgun
- 30 in vent-rib steel barrel with bead front sight
- Original Browning ventilated recoil pad with white line spacer
This Belgian-made Auto-5 was produced in 1966, with the 6V serial prefix identifying it as a Magnum Twelve. It is chambered for 3 in 12-gauge magnum loads and retains the Auto-5’s long-recoil operating system with an adjustable friction ring.
The shotgun includes Browning’s Speed-Load feature and a magazine cutoff, along with the iconic humpback receiver profile. Capacity is 4+1.
The 30 in steel barrel has a ventilated rib and a bead front sight, and the receiver and barrel wear a blued finish. The walnut pistol-grip stock and matching fore-end have cut checkering and finger grooves, and the length of pull measures 14.0 in. An original Browning ventilated recoil pad with white line spacer is installed.
This example has an aftermarket camouflage wrap applied to the receiver, barrel, fore-end, and buttstock.




