Uncle Mike's Rubber Grips for S&W J Frame Round Butt Used, GP21 Fire Control Parts This is the coil spring

This is the coil spring that drives the hammer forward to ignite the primer — a critical component for reliable ignition and consistent trigger pull

It will NOT fit Full Size models (4

Authentic OEM factory new 8-round magazine tube for the Smith & Wesson M&P Shield 9mm pistol

44 Magnum - X Frame variants

Part number 396990000 is an enhanced magazine floorplate that features an extended base with an integrated finger rest

Uncle Mike's Rubber Grips for S&W J Frame Round Butt Used, GP21 Fire Control Parts This is the coil springUncle Mike's GP21 Rubber Grips S&W J Frame Round Butt (Used) A solid aftermarket upgrade for your Smith & Wesson J Frame revolver. These Uncle Mike's GP21 rubber grips are designed for the Round Butt configuration, offering a secure, comfortable hold that helps manage recoil on compact revolvers. Whether you carry daily or shoot recreationally, these grips deliver reliable ergonomics at a great used price. Fits: Smith & Wesson J Frame revolvers with