BROWNING Miroku Auto-5 A5 Light Twenty 20 GA Semi-Auto Shotgun, 1989 Case

SOLD FOR: $2025

LSB#: 220203RB001

Make: Miroku Japan for Browning Utah, Quebec

Model: Auto-5 “Light Twenty”

Serial Number: 22359PN231 (“22359” is the serial number, “PN” is a date code with “P” meaning “8” and “N” meaning “9” for the year 1989, and “231” is the Auto-5 type, in this case “Light 20 Gauge”.)

Year of Manufacture: 1989

Gauge: 20, chambered for 2 3/4” Shells

Action Type: Long-Recoil, Semi-Automatic, Tubular Magazine Fed Semi-Automatic Shotgun.

Markings: 24” barrel left shoulder marked “BROWNING ARMS COMPANY MORGAN UTAH & MONTREAL P.Q. / MADE IN JAPAN / MIROKU”. Right shoulder marked “BROWNING AUTO-5 / SPECIAL STEEL 20GA. SHELLS—2 ¾”—24” / BROWNING PATENTS”.


The underside of each barrel has a proof mark.

The left side of the receiver is marked “Light Twenty” in cursive script over “® / BROWNING” which is situated over a bust portrait of John M. Browning. The serial number is marked on the underside of the receiver, just forward of the ejection port. “22359 / PN231”.

The bottom of the guard is marked with a Browning logo in gold fill and the buttplate is marked “BROWNING”. Tasteful grade-1 engraving can be seen on the receiver and upper grip tang.

Barrel Length: There are two barrels included. 24”, and 28” with a ventilated rib.

Choke: The 24” barrel choke is Improved Cylinder, fixed. The 28” barrel utilizes adjustable choke tubes with a Modified choke currently installed. No additional choke tubes are included, however.

Sights/Optics: The 24” barrel features a rifle sights—the front sight is a blade topped with a brass bead that is dovetailed into a serrated ramped base that is fixed to the barrel and the rear sight is an adjustable u-notch pinned to a base that is fixed to the barrel. The 28” barrel has a silver colored bead at the frontand the rib is textured to reduce glare.

Stock Configuration and Condition: The stocks are two-piece checkered walnut with a fluted straight comb, round-bottom pistol grip, and finger grooves running the length of the forend. There are scant handling marks in addition to very light scattered dings and drag lines that are evident on either side of the buttstock, the belly, the front of the grip, and the underside of the forend. The checkering is well-defined. There are no chips or cracks. The LOP measures 14 3/4? from the front of the trigger to the back of the buttplate. The plate is free of any notable wear or damage. Overall, the stocks are in Fine-to-Excellent condition.

Type of Finish: Blue

Finish Originality: Original

Bore Condition: The bores for both barrels are bright with no erosion. There is light stubborn fouling in both bores, however, mostly nearer to the muzzle.

Overall Condition: This shotgun retains about 98% of its metal finish. The 24” barrel has only minor handling marks but is otherwise free of any additional notable wear or damage; this is the case for the 28” barrel as well. The upper areas of the receiver on either side have a few light nicks through the finish. The screw heads are sharp with strong slots. Markings are clear. Overall, this shotgun is in Fine-to-Excellent condition.

Mechanics: The action functions correctly. There is a magazine cutoff on the left front of the receiver, a safety at the rear of the trigger guard and a bolt release on the right side of the receiver. We have not fired this shotgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance standards.

Box, Paperwork, and Accessories: This Light Twenty includes a brown leather briefcase.

Our Assessment: The Browning Automatic 5, most often referred to as the Auto-5, or even simply the A-5, is a recoil-operated semi-automatic shotgun designed by the legendary John Browning. The Auto-5 was the first mass-produced semi-automatic shotgun. Designed by Browning in 1898 and patented in 1900, it was produced continually for nearly 100 years by several makers with production ending initially in 1998 (other makers, on a much smaller scale have continued to produce the pattern). It features a distinctive high rear end, earning it the incongruous nickname “Humpback”. Browning originally presented his design to Winchester, to whom he had sold his rifle designs, but the company refused his terms. He then went to Remington, but the president of the company died while he was waiting to offer them the gun. Browning then took the gun to FN in Europe and, so confident was he of his design, that his first order was for 10,000 shotguns. The design was later licensed to Remington for their Model 11 and to Savage Arms for their Models 720 and 755. During WWII, production of the Auto-5 was moved to Remington alongside the Model 11 until FN could resume production after the war. From 1976 to 1998, Auto-5 production was taken up by Miroku in Japan. And is often the case with items produced in Japan, there is a certain beauty, a certain grace inherent in the work. While Miroku’s Auto-5’s are built on the Browning patent, the bluing is that much richer, the wood is that much finer, and the overall presentation is laudable, as the included padded briefcase will attest. This example was produced in 1989 and will ship with two barrels—one traditional 28” and the other a 24” fitted with rifle sights for those who love to shoot slugs. The overall package is versatile, ideal for either terrestrial and aerial game. Good luck and happy bidding!

BROWNING Miroku Auto-5 A5 Light Twenty 20 GA Semi-Auto Shotgun, 1989 Case
BROWNING Miroku Auto-5 A5 Light Twenty 20 GA Semi-Auto Shotgun, 1989 Case