Laylax Ball Bearing Spring Guide MPX Submachine Gun AEG

If you are upgrading your MPX AEG, a ball bearing spring guide is a great way to reduce stress on the gearbox and spring, and prolong the life of your internals when operating in high-strain setups. The Laylax Ball Bearing Spring Guide is designed for the MPX and is a quick and easy replacement thanks to its quick change functionality. The spring guide is constructed from steel, which alone will prolong its life considerably, but the ball bearings in its base allow the guide to spin freely and redirect any stress on the gearbox shell, and the spring itself.