Colt 1851 Navy Second Generation C-Series .36 Percussion Revolver – Rare Square-Back Trigger Guard Variant, 7.5 in. Octagonal Barrel, 1976 Production
This Colt 1851 Navy is a Second Generation C-Series revolver built in 1976 by Colt’s Blackpowder Arms Division. It is the scarce square-back trigger guard variant—one of an estimated 100 produced—making it a standout piece for collectors of Colt percussion arms. Finished in Royal Blue with a color-case-hardened frame and stocked with varnished walnut, the revolver remains in excellent, lightly used condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent – Sharp lands and grooves.
Specific Condition Notes: Light edge wear is visible from limited use, but metal and wood surfaces remain crisp and well-preserved.
What’s Included
- Colt 1851 Navy Second Generation C-Series revolver
Colt introduced the C-Series in the 1970s to revive its classic percussion line with true-to-original construction. This revolver follows the original 1851 Navy pattern while omitting modern proof or import marks, preserving 19th-century aesthetics.
The square-back trigger guard distinguishes this example from standard round-trigger-guard C-Series guns. With only about 100 produced, it is one of the least common configurations in the entire Second Generation run.
The 7.5-inch carbon-steel octagonal barrel uses a 7-groove left-hand twist for proper .36-caliber round-ball stabilization. The bore is bright and sharp, reflecting minimal range time.
Royal Blue polish on the barrel and cylinder contrasts with vivid color-case hardening on the frame, loading lever, and hammer. The cylinder carries Samuel Colt’s classic roll-engraved naval Battle of Campeche scene, and all major components share matching serial number 20423.
Brass bead and hammer-notch sights, a one-piece varnished walnut grip, and authentic single-action percussion mechanics complete the historically accurate build, making this revolver both shootable and highly collectible.




