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Selected Handgun Detail

US Firearms
Model Ace .22
US Firearms Pistol Ace .22 .22 LR Variant-1
Scale To:
Gun Dimensions Width:No Data
Length:8.5-in Height:No Data
Barrel:5-in Weight:39-oz
1 Variant
Gun Rankings
  • Power Factor (40 grain bullet)42160
  • Recoil Factor (40 grain bullet)0.33 ft-lb
  • Total Capacity11 rounds
  • ConcealabilityFair
  • Defense Factor36%
Gun Specifications
Type:Pistol
Caliber:.22 LR
Action:recoil operated semi-automatic
Trigger:single-action (SA)
Safety:grip safety, manual thumb safety
Magazine:10-round
Frame:blued finish steel
Grip:checkered walnut
Sights:fixed
Notes:reproduction, prototype only
Manufacturer
United States Firearms Mfg. Co., Inc.
More Info
About the Gun

Replica of Colt's Ace .22 pistol. Introduced at the 2006 SHOT Show with prototypes developed thereafter; commercial production was suspended, with the company focusing on other projects until its cessation in 2012.

Production

Prototypes were produced between 2006 and 2012. No production models were produced.

Market value
Last updated: 9/21/2025

No market value is available for this pistol, as only prototypes were made and a production model never made it to market.

Cartridge Specifications
Cartridge: .22 LR
Alias: .22 Long Rifle
More Info
Ballistics for This Gun
Selected Bullet Mass:40 grains
MV:1054 ft/sec ME:99 ft-lbs
Analysis

The USFA Model Ace .22 is a semi-automatic pistol conceptualized as a reproduction of the Colt Service Model Ace, chambered in .22 Long Rifle with a detachable magazine. It features short recoil operation, adjustable sights, and historical authenticity in design. Announced in 2006, the model advanced to the prototype stage but did not enter commercial production due to the company's strategic shifts and eventual closure. Specifications are derived from analogous USFA 1911 reproductions and the original Colt model, as detailed prototype data is unavailable.

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