The Smith & Wesson Magazine Butt Plate Catch Assembly, 11-Round, is a factory-original component engineered specifically for Smith & Wesson 4000 Series pistols chambered in 40 S&W. Designed to interface precisely with the magazine body and floor plate, this catch assembly helps ensure secure magazine retention and consistent feeding performance shot after shot.

This compact assembly is ideal for owners who want to restore reliable function to a worn or damaged magazine or keep a spare part on hand for maintenance. Whether you spend most of your time at the range or rely on your 4000 Series for everyday use, a properly functioning butt plate catch assembly supports smooth reloads and dependable operation. Backed by Smith & Wesson’s long-standing reputation for quality firearm components, it offers a straightforward way to keep your pistol running as intended.

• Manufacturer: Smith & Wesson
• Model: 4000 Series
• Caliber: 40 S&W
• Capacity: 11-Round Magazine Compatibility
• Unique Features: Factory magazine butt plate catch assembly for secure magazine retention