Miroku Kentucky Pistol .45 Cal Percussion, 10" Octagonal Barrel, Japan (1970s) with Brass Furniture
Made in Japan by Miroku for the Ultra-Hi trade brand, this Kentucky-style .45 caliber percussion pistol is a 1970s-era reproduction with classic lines and period details. It features a 10-inch octagonal rifled steel barrel, a one-piece walnut fullstock, and brass furniture throughout. The lockplate carries factory scroll engraving, and the barrel is clearly marked for black powder use only.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Fair - Generally clean, some residue or smudges, slight corrosion.
Bore Fouling: Moderate Fouling - Lead or copper fouling with noticeable buildup.
Bore Rifling: Fair Rifling - Worn rifling, slight loss of definition.
Specific Condition Notes: This Miroku Kentucky Pistol shows cosmetic and internal wear consistent with a vintage black powder pistol. The octagonal barrel and lock plate display minor pitting and surface oxidation, and the wood-to-metal fit remains decent. The bore exhibits heavy rusting; an aggressive cleaning or restoration is recommended to evaluate long-term shootability. The percussion action is functional with a strong hammer spring and a crisp trigger pull. The one-piece walnut stock is structurally sound with scattered field dings and handling marks.
Due to the bore condition, this .45 caliber muzzleloader is offered as a project gun or as a decorative wall-hanger.
What's Included
- Miroku Kentucky Pistol (.45 caliber, percussion)
Manufactured in Japan by Miroku for the Ultra-Hi trade brand, this single-shot percussion pistol reflects the classic Kentucky pattern in a 1970s reproduction. It is chambered in .45 caliber and built around a 10-inch octagonal, rifled steel barrel with a blued finish. The one-piece walnut fullstock carries a clear varnish for a traditional look.
Period-style brass furniture includes the wavy sideplate, nose cap, trigger guard, and ramrod pipes, complementing the pistol’s Kentucky profile. Sighting is straightforward, with a brass blade front and a fixed rear notch for a clean, traditional sight picture.
The lockplate is factory engraved with scroll motifs, adding a touch of craftsmanship to the percussion action. The pistol uses a bolster-mounted nipple and an external hammer, consistent with historical percussion design. Capacity is single shot, as expected for the type.
Markings include "MFG. FOR ULTRA-HI BY MIROKU JAPAN" and ".45 CAL. BLACK POWDER ONLY," confirming its Japanese manufacture and black powder-only status. These markings, along with its construction features, firmly place the pistol within the well-regarded era of Japanese-made reproduction muzzleloaders from the 1970s.