COLT Diamondback D5160 22 LR 6″ DA/SA Double Action Revolver MFD 1978-1979

SOLD FOR: $2025

LSB#: 211103LG01

Make: Colt

Model: Diamondback (Model #D5160)

Serial Number: R55771

Year of Manufacture: 1978-1979 (Definitive records for this serial number do not exist—the year of manufacture here is determined by the span of time in which the “R” prefix was used.)

Caliber: .22 Long Rifle

Action Type: DA/SA Double and Single Action 6-Shot Swing Out 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 CT. U.S.A.”. The side plate has Colt’s rampant colt logo, the left front of the trigger guard is marked “VP” in triangle. The crane and crane cut are marked with the serial number, “R55771”.

Barrel Length: 6” with Full Underlug and 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 base that is adjustable for windage and elevation, pinned to the topstrap.

Stock Configuration and Condition: The grips are two-piece checkered wood with gold-colored Colt medallions at their tops. There is verdigris on the bottom of each panel and both panels have a bit of play. There are no chips or cracks. The checkering is sharp. Overall, the grips rate in Fine condition.

Type of Finish: Blued

Finish Originality: Original

Bore Condition: The bore is mostly bright with sharp rifling. There is no erosion, but minor stubborn fouling persists throughout.

Overall Condition: This revolver retains about 97% of its metal finish. The barrel assembly has scattered minor nicks and a few scuffs scattered about. The cylinder has a turn line partly through the finish. The screw heads are sharp. The markings are clear. Overall, this revolver rates in Fine condition.

Mechanics: The action functions correctly. The cylinder locks up solidly on each chamber with the trigger depressed. The double action trigger is smooth, the single action is light and crisp. We did not fire this revolver. As with all used firearms, thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork, and Accessories: This Diamondback includes its serial-matching cardboard box with styrofoam insert and various factory paperwork including the manual.

Our Assessment: The Diamondback is effectively a shorter framed Python with a dash of the Detective Special, both in the cylinder and grip frame, sharing similar aesthetic dynamics and is no less striking in appearance than its predecessor. This revolver retains about 97% of its finish with some scattered wear that is most notable on the frame. This will make for a fun plinker, chambered as it is in .22 long rifle. Those familiar with the Python line understand the accuracy these revolvers are capable of; this one should prove to be no different. Good luck and happy bidding!