Colt Diamondback Model D5140 Blue 4″ .22 LR Double Action Revolver, 1982

SOLD FOR: $1775

LSB#: 220418ER002

Make: Colt

Model: Diamondback Model D5140

Serial Number: P55896

Year of Manufacture: 1982 (

Caliber: .22 Long Rifle

Action Type: 6-Shot, Double Action / Single Action, Swing-Out Fluted Cylinder Revolver.

Markings: The left side of the barrel is marked “DIAMONDBACK / .22 LONG RIFLE”, the right is marked “COLT’S PT. F.A. MFG. CO. HARTFORD, CONN. U.S.A.”. The side plate has Colt’s rampant logo, the left front of the trigger guard is marked “VP” in triangle, the rear with “6”. The crane and crane cut have the serial number.

Barrel Length: 4” with Full Underlug & Ventilated Rib

Sights / Optics: The front sight is a finely serrated ramp blade that is integral to the ventilated rib; the rib and topstrap are matte finished for glare reduction. The rear sight is a flat top, square notched leaf in a blade that is adjustable for windage and elevation.

Stock Configuration & Condition: The grips are two-piece checkered walnut with gold-colored Colt medallions at their tops. The left panel has a couple of minor nicks in its rear edge. Otherwise, there are only light handling marks. There are no chips or cracks. The checkering is well defined. Overall, the grips are in Excellent condition.

Type of Finish: Blue

Finish Originality: Original

Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore.

Overall Condition: This handgun retains about 98% of its metal finish. The sideplate has a scratch toward the rear. The action has minor operational wear with a very thin, faint turn-line on the cylinder. The screw heads are sharp. The markings are clear. Overall, this revolver is in Excellent condition.

Mechanics: The action functions correctly. The cylinder locks up with no play on each chamber with the trigger depressed. The double action trigger is smooth, the single action is crisp. We did not fire this handgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork & Accessories: This revolver comes in a faux-wood cardboard Colt box with two-piece styrofoam inserts, manual, and yellow “stop-sign” hang-tag. The box has had all of its ears tear off and shows heavy wear.

Our Assessment: The Diamondback is essentially a shorter framed Python both in the cylinder and grip frame, sharing similar aesthetic dynamics and is no less striking in appearance and mechanics than its predecessor. The model was offered in .38 Special as well as .22 Long Rifle, like this one. This revolver retains about 98% of its finish, sporting a bright, sharp bore and solid cylinder lockup. Those familiar with the Python line understand the accuracy these revolvers are capable of, this one should prove to be no different. This will make for as beautiful a display piece as it would a shooter. Please see our pictures and good luck!

Colt Diamondback Model D5140 Blue 4" .22 LR Double Action Revolver, 1982
Colt Diamondback Model D5140 Blue 4″ .22 LR Double Action Revolver, 1982