Wolff Extra Power Recoil Spring for S&W 3rd Gen .45 Pistols
Part Number: 47316
Premium Wolff extra power recoil spring designed for Smith & Wesson 645, 745, and 4500 Series .45 ACP pistols. This 16 LB spring provides enhanced reliability over the factory 14 LB spring, ensuring consistent cycling with a wide range of ammunition.
Key Features:
- Extra Power Design: 16 LB spring weight for improved reliability over factory 14 LB
- 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 Performance: Better cycling with standard and +P ammunition
- 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: Recoil Spring with Firing Pin Spring
- Spring Weight: 16 LB (Extra Power)
- Factory Weight: 14 LB
- 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: Extra power for standard and +P loads
- 20 LB: Extra power for lighter loads
- 16 LB (This Spring): Extra power for general use - versatile choice
- 14 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 extra power 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: When should I use a 16 LB spring versus factory 14 LB?
A: The 16 LB spring provides slightly more power than factory, offering improved reliability with a wide range of ammunition without being too heavy for standard loads.
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.
Q: Does this include the firing pin spring?
A: Yes, this kit includes both the recoil spring and firing pin spring.
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 Recoil Spring (16 LB) and 1 Firing Pin Spring
Pro Tip: The 16 LB spring is a popular choice for shooters who want slightly more reliability than factory without going to the heavier 20-24 LB springs.