The Heckler & Koch Magazine Catch Spring (H&K part no. 50235022) is a genuine factory part built for the HK417 platform, fitted to the MR556A1. This spring provides the tension behind the magazine catch button, so a fatigued original is a common cause of a catch that feels soft or fails to lock a magazine positively.

Key Specifications

• built for the HK417/MR556A1 platform matching factory fit and tension.
• restores magazine catch tension where a fatigued original has gone soft.
• factory H&K replacement part rather than an aftermarket substitute.

Frequently Asked Questions

What rifle platform is this for? It is a factory-correct magazine catch spring for the HK417 platform, fitted to the MR556A1.

Why replace this spring? A fatigued magazine catch spring is a common cause of a catch that feels soft or does not lock the magazine positively.

Buy the HK417/MR556 Magazine Catch Spring

Restore positive magazine catch tension with the current factory H&K spring. Browse more of our rifle parts selection and order from our Lubbock, Texas gun shop for fast shipping.