Ruger Single-Six Flatgate Old Model Three-Screw .22 LR, 5.5 Inch Blued Revolver (1956)
This 1956 Ruger Single-Six is an Old Model three-screw flatgate in excellent condition, notable for its early flat loading gate and non-convertible .22 LR configuration. It features a 5.5 inch barrel, fluted six-shot cylinder, and classic fixed sights, with blued steel throughout and an aluminum-alloy grip frame. A clean example of an early-production Single-Six, it presents strong appeal for collectors and enthusiasts of mid-1950s Ruger revolvers.
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 Rifling - Sharp lands and grooves.
Specific Condition Notes: There is little sign of prior use, and the firearm functions properly.
What’s Included
- Ruger Single-Six .22 LR revolver (Old Model three-screw flatgate, 5.5 inch barrel)
This Old Model three-screw Single-Six is the desirable flatgate variant, identified by its flat loading gate and fixed-sight configuration. It is a non-convertible .22 LR, aligning with early-production specifics for 1956. The revolver retains its original character with the rollmark 'RUGER .22 CAL SINGLE-SIX' on the barrel.
The build is classic mid-1950s Ruger: blued steel barrel, cylinder, and frame; steel ejector-rod housing; and an aluminum-alloy grip frame. The six-shot cylinder is fluted, and the hammer is the traditional spur style.
Sighting is straightforward and robust with a half-moon blade front sight and an integral top-strap rear notch. The 5.5 inch barrel balances well and complements the fixed-sight setup.
Grips are black checkered with Ruger medallion inlays, completing the period-correct appearance. The overall condition and clean bore reflect very light prior use and careful handling.




