Winchester Model 101 Diamond Grade Trap Un-Single 34” Ported 12GA Shotgun
SOLD FOR: $1,625.00
LSB#: WY250520ST065
Make: Winchester
Model: 101 Diamond Grade Trap Un-single
Serial Number: DG478169E
Year of Manufacture: 1970-1987
Gauge: 12 Gauge, 2 ¾” Shells
Action Type: Top-Break UN-single Shotgun with Single Selective Inertial Trigger and Ejector.
Markings: The left side of the barrel set is marked “WINCHESTER “DIAMOND GRADE” TRAP – 12 GAUGE-2 ¾” WINCHOKE-EAST ALTON IL. U.S.A.”. The left of the monoblock is marked “W/C”, and the barrel with an ovalled “WP” proof. The bottom of the bottom barrel is marked “WINCHESTER PROOF STEEL”. The bottom of the monoblock is marked “478169 12-2 3/4”. The right side of the barrel set is marked “MADE IN JAPAN”. The top of the forend iron is marked “478169”, the inside of the forend wood is marked “8169”. The top tang is marked “DG478169E” and “S U O”. The receiver, trigger guard, exposed portions of the forend iron and the barrel shoulders have decorative scroll engraving. The buttpad is marked “WINCHESTER”. The bottom of the receiver is marked “Diamond Grade WINCHESTER”. The inside bottom of the receiver has several proofs and “81”.
Barrel Length: 34” ported barrel.
Choke: The barrel is threaded for WINCHOKE chokes. The shogun includes Modified, FULL, and EXTRA FULL chokes three chokes total. Currently installed is the Modified choke.
Sights / Optics: Atop the serrated high rib is a white bead front sight with a small white mid-bead sight. Someone has added a fiber optic sight with a green circle with red center sight in front of the white bead.
Stock Configuration & Condition: The furniture set on this shotgun includes a checkered walnut forend with a rounded profile and a full length finger shelf. The stock is a semi-pistol grip stock with fluted straight comb, checkered grip, and a black rubber buttpad. The length of pull is 13.75”, the drop at comb / drop at heel is 1.5”, the stock shows a right handed cast. The shotgun weighs 8lbs 7OZ. The stock has a very tasteful wood diamond inlaid in the top of the wrist. The forend appears to have been sanded and refinished. The wood shows scattered minor lines, compressions, and nicks throughout. The stock shows a series of small chips on the left rear edge and the bottom of the pommel has a notable impact mark. There are no visible cracks. The butt pad is still mostly soft. Overall the furniture set is in Very Good condition.
Type of Finish: Blued / stainless, gold toned trigger.
Finish Originality: Original
Bore Condition: The smooth bore is mirror bright with no erosion. There are no real visible lines and only very minor plastic fouling in the forcing cone. In this writer’s opinion the bore rates 9.75/10.
Overall Condition: This shotgun retains about 98% of its metal finish. The barrel shows some very minor scattered handling with no notable marks. The receiver shows no notable marks. The trigger has lost almost all of the gold tone. The jeweling on the sides of the block of the barrel show some discoloration from use that is concealed when the action is closed. The markings are clear and the screw heads are sharp. Overall the shotgun is in Very Good to Very Good+ condition.
Mechanics: The action functions correctly. The barrels lock up to the receiver with no play. The safety does not engage automatically when the action is opened, and does function properly when engaged manually. We have not fired this shotgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance standards.
Box, Paperwork & Accessories: This shotgun includes the three chokes, Hoppes weather guard, choke wrench, gun socks, and Winchester Diamond Grade luggage style case.
Our Assessment: The Winchester 101 Diamond Grade Trap Un-Single is a finely crafted, competition-oriented 12-gauge shotgun built to deliver precision and performance in the demanding world of trap shooting. This particular model features a 34″ ported single barrel, often referred to as “un-single”, which is specifically designed for singles trap or handicap events. The porting helps to reduce felt recoil and muzzle rise, allowing for better control for competitive follow-through. The Winchoke threading adds versatility, giving shooters the ability to tailor their shot patterns using interchangeable choke tubes to suit specific trap distances or shooting preferences.
As a Diamond Grade variant, this shotgun showcases Winchester’s premium features: high-grade walnut with checkering, a straight comb, and a high rib for enhanced sight alignment and target acquisition. The action and receiver are engraved and finished to a high standard, reflecting its place as a top-tier competition gun. Built on the legendary Winchester 101 platform, known for its durability and balance, the Diamond Grade Un-Single is a purpose-driven shotgun designed for serious trap shooters who demand consistent performance and refined handling in a firearm that’s as elegant as it is effective. Please see our high quality photos via the link and best of luck with your bidding!!!-R.L.
