Ciener 1911 Platinum Cup .22 LR Conversion Unit – Match-Grade Bull Barrel & Adjustable Sights
This Jonathan Arthur Ciener Platinum Cup conversion unit lets any Government-length 1911 frame fire affordable .22 LR while keeping the original trigger feel. A 4140 steel, match-grade bull barrel is paired with a lightweight 7075-T6 aluminum slide, creating a fast-cycling, simple blowback system that weighs just about 1 lb. Millett fully adjustable rear sights and a serrated Patridge front sight provide a crisp sight picture, and the flat-topped, serrated slide wears a durable matte-black finish.
Condition
Overall Condition: Very Good
Bore Condition: Bore is bright and shiny with strong rifling.
Action Condition: Action functions correctly.
Slide Condition: Finish shows light handling marks.
Sights Condition: Sights are fully functional.
Specific Condition Notes: The slide displays minor, superficial scratches and small blemishes. The bore remains clean and reflective.
What’s Included
- Jonathan Arthur Ciener 1911 Platinum Cup .22 LR conversion slide assembly
- Blue molded plastic fitted case with factory conversion-kit label
- "CIENER" .22 Caliber Conversion for the 1911A1 Pistol instruction manual
- Jonathan Arthur Ciener single-stack .22 LR conversion magazine
Designed for full-size 1911 frames, this conversion replaces the center-fire upper with a dedicated .22 LR slide and barrel while leaving the host pistol’s trigger group untouched. The result is rimfire practice that mirrors the feel of a standard Government model.
The Platinum Cup series features a match-grade, integral bull barrel crafted from 4140 steel for enhanced accuracy and durability. Its simple blowback action offers reliable cycling with a wide range of high-velocity .22 LR loads.
The slide is machined from 7075-T6 aluminum to cut weight without compromising strength. Angled rear cocking serrations and a flat-topped profile give good purchase and a clean sighting plane.
Target-focused iron sights set this unit apart. A serrated Patridge front sight teams with a Millett fully adjustable rear sight, allowing precise windage and elevation tuning.
Ciener still supports these units with factory parts, adding long-term serviceability to an already versatile rimfire trainer.