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1911 Barrel Bushing, Standard Dimension, AISI 4140 Steel, Heat-Treated

Keng's Firearms Specialty, Inc.
SKU:
191-002
|
UPC:
755377191027
Availability:
Ships within one business day.
$33.95
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Current Stock:
33
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1911 Barrel Bushing – Standard Dimension | AISI 4140 Heat-Treated Steel

Upgrade the performance of your 1911 platform with a precision-machined barrel bushing engineered for improved accuracy, durability, and long-term reliability. This standard-dimension 1911 barrel bushing is manufactured from solid AISI 4140 alloy steel, a material recognized for its high strength, toughness, and wear resistance in demanding applications.

Unlike many cast alternatives, this bushing is turned from solid bar stock to maintain superior dimensional consistency and tighter tolerances. The result is a more precise interface between the barrel and slide, improving lock-up stability and supporting enhanced shot-to-shot accuracy.

A controlled heat-treatment process further strengthens the material by increasing hardness, fatigue resistance, and surface durability. These properties are critical in firearm components subjected to repeated stress and cycling.

Designed to meet standard 1911 specifications, this barrel bushing provides broad compatibility across Government-style 1911 pistols, making it an ideal solution for repairs, upgrades, or custom builds requiring reliable performance.

Why a Precision Barrel Bushing Matters

The barrel bushing plays a critical role in maintaining proper alignment between the barrel and slide during the firing cycle. A tighter, more consistent fit reduces unwanted movement, helping to improve overall accuracy and ensure reliable cycling.

Key Features

  • Precision machined from solid AISI 4140 alloy steel bar stock
  • Heat-treated for enhanced hardness, wear resistance, and longevity
  • Tighter tolerances for improved barrel-to-slide lock-up
  • More consistent performance compared to standard cast bushings
  • Standard dimension design for compatibility with most 1911 platforms
  • Ideal for gunsmithing, restoration, and performance upgrades

Material Advantage: AISI 4140 Alloy Steel

AISI 4140 is a chromium-molybdenum alloy steel widely used for precision-engineered components due to its excellent balance of strength, toughness, and fatigue resistance. Its ability to respond effectively to heat treatment allows manufacturers to enhance hardness while maintaining structural integrity, making it ideal for high-use mechanical parts.

Recommended Applications

  • 1911 accuracy upgrades and performance tuning
  • Replacement of worn or factory bushings
  • Custom firearm builds requiring tighter tolerances
  • Gunsmith fitting and precision machining projects

 

 


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Authentic Kensight ® Sights - The Professional's Choice

This is an authentic Kensight ® sight, and not to be confused with other brands. When it comes to durability, and features the Kensight® sights far exceed our competitors. Our sights are Wire-EDM machined from a single billet of 4140 chrome-moly steel. The result is a precision sight built with better materials and the Wire-EDM construction ensures the tightest tolerances possible. This translates to ultra-smooth adjustments, audible clicks for both windage and elevation, and consistent dovetail dimensions in which the "industry standard" CNC construction cannot compete. Backed by our Limited Lifetime Warranty, Kensight 1911 sights are premium quality and the first choice for factory-fit OEM manufactures, competition shooters and professional's worldwide.


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Limited Lifetime Warranty

We stand behind our products. All Kensight Sights are covered by a limited lifetime warranty. We guarantee our products against defects in material and construction. This limited lifetime warranty does not extend to normal signs of wear. It does not cover breakage, damage or rust due to misuse, improper maintenance, accidents, loss or theft. The warranty does not extend to damages cause by unauthorized repairs.

Any product we determine to be defective will be repaired or replaced solely at our discretion. To receive warranty repair or replacement, the owner must send the product to be evaluated by KFS Industries Warranty Services located at our Atlanta, Georgia headquarters. In addition to the provisions of this warranty, the owner may also have other rights that can vary by state. No other warranties are implied or expressed other than what is specifically stated here.

Warranty Service

All products returned to KFS Industries for a warranty claim must have prior approval of a KFS Customer Service employee in the form of a Return Material Authorization Number (RMA). The RMA must be displayed on the exterior of the return carton. Merchandise returned without an RMA will be refused. The RMA number assigned will expire 30 days from date of issue. To obtain an RMA, please call the KFS Atlanta, Georgia headquarters at (404) 691-7611.

After you obtain your RMA, Please send your product to:

KFS Industries Inc.
875 Wharton Dr SW
Atlanta, GA 30336
 

You must pay the shipping and insurance costs to return your product to KFS Industries Inc., and we will pay the shipping charges to return the product to your US address only. All International shipping will be the responsibility of the consumer.

Upon receipt of a returned product, we will verify warranty coverage. If the product is not covered by warranty, KFS Industries Inc. will send you an estimate of the cost to repair your product prior to performing any services not covered.

Product Series:
1911 Accessories Series
Material:
4140 Chrome Molly Steel
Colour:
Matte Black
Finish:
Black Oxide