ADJ Rear Sight Body Plunger Spring (2) — for models with adjustable rear sights only
This old style variant is specific to early production Model 10 revolvers and is not interchangeable with the new style cylinder stop
Eliminates grip panel rattle and loosening under recoil
The smooth trigger face provides a comfortable feel during trigger pull
Direct replacement for worn factory springs
Wolff Extra Power Recoil Spring 18LB for S&W 3904/5904 Series 9mm 47418 Cylinder ADJ Rear Sight Body PlungerWolff Extra Power Recoil Spring 18LB Premium extra power recoil spring designed specifically for Smith & Wesson 3rd Generation 9mm pistols. This 18 pound spring provides increased reliability with full power loads and ensures positive cycling with factory ammunition. Compatible Models: Smith & Wesson Model 39, 439, 539, 639 Smith & Wesson Model 3904, 3906, 3944, 3946 Smith & Wesson Model 59, 459, 559, 659 Smith & Wesson Model 5903, 5904, 5906 Smith &