Wolff Extra Power Variable Recoil Spring for S&W 3rd Gen .45 Pistols
Part Number: 47322
Premium Wolff extra power variable recoil spring designed for Smith & Wesson 645 and 4500 Series .45 ACP pistols. This 22 LB spring provides enhanced reliability for standard and +P loads, ensuring consistent cycling with a wide range of ammunition.
Key Features:
- Extra Power Design: 22 LB spring weight for reliable cycling with standard and +P loads
- Variable Spring: Precision-wound for consistent performance throughout its service life
- Complete Kit: Includes both recoil spring and firing pin spring
- Premium Quality: Made in USA by Wolff GunspringMakers with over 75 years of expertise
- Enhanced Reliability: Improved feeding and ejection performance
- Direct Replacement: Drop-in fit for specified models
- Corrosion Resistant: High-quality spring steel construction
Compatible Models:
This recoil spring fits the following Smith & Wesson 3rd Generation .45 ACP pistols:
- Model 645
- Model 745
- Model 4506
- Model 4526
- Model 4546
Technical Specifications:
- Spring Type: Variable Recoil Spring with Firing Pin Spring
- Spring Weight: 22 LB (Extra Power)
- Caliber: .45 ACP
- Material: Premium spring steel
- Finish: Corrosion-resistant
- Manufacturer: Wolff GunspringMakers (USA)
- Condition: New
- Weight: 2 oz
- Package: Includes recoil spring and firing pin spring
Spring Weight Selection Guide:
Wolff offers multiple spring weights for the 645/4506 series to accommodate different ammunition types:
- 24 LB: Extra power for +P loads and heavy bullets
- 22 LB (This Spring): Extra power for standard and +P loads - versatile choice
- 20 LB: Extra power for lighter loads
- 15 LB: Factory standard weight
- Lower weights: Reduced power for competition use
Installation:
Installation requires field stripping of your S&W 3rd Gen pistol. If you're not comfortable performing this installation, have a qualified gunsmith install the spring. Always function test after installation to ensure reliable operation with your chosen ammunition.
Why Choose Wolff Springs?
Since 1948, Wolff has been America's premier manufacturer of precision firearm springs. Their variable recoil springs are engineered to exacting tolerances, providing enhanced reliability for duty, carry, and range use. The S&W 3rd Generation .45 pistols are legendary duty firearms, and Wolff springs help maintain their performance.
Frequently Asked Questions:
Q: What's the difference between 22 LB and 24 LB springs?
A: The 22 LB spring is more versatile and works well with both standard and +P loads. The 24 LB is optimized for heavy/hot loads and maximum reliability.
Q: Will this work with standard .45 ACP ammunition?
A: Yes, the 22 LB spring works excellently with all .45 ACP loads from standard to +P.
Q: How often should I replace my recoil spring?
A: For duty/carry use, replace springs annually or every 5,000 rounds. For range use, replace every 10,000 rounds or when you notice decreased reliability.
Warranty & Returns:
Wolff springs are backed by the manufacturer's quality guarantee against defects in materials and workmanship. All products are eligible for return within our standard return policy period if unused and in original condition.
Package Contents: 1 Wolff Extra Power Variable Recoil Spring (22 LB) and 1 Firing Pin Spring
Pro Tip: The 22 LB spring is the most popular choice for duty and carry use, offering excellent reliability with a wide range of ammunition.