TANDEMKROSS Green Springs Magazine Springs Features Shot peening is the reason these springs outlast the factory part. The process works the surface of the wire to leave it in compression which resists the fatigue cracking that eventually robs a magazine spring of its strength after thousands of compression cycles so the spring keeps pushing rounds up the tube with the same force in its third season as it did on the first day. That matters more on a rimfire than most shooters expect because the light .22 LR cartridge has very little mass of its own to help it feed and depends almost entirely on the spring to present it to the chamber at the right moment. When the spring goes soft the result is the failure-to-feed that shows up first as an occasional hiccup and then as a stage-ending malfunction. For the Browning Buck Mark owner who has started seeing those hiccups a fresh spring is usually the whole answer. Selling them in 3-packs is a deliberate choice by TANDEMKROSS since most Buck Mark owners run more than one magazine and a single replacement leaves the rest of the set in the same worn condition. Keeping a 3-pack in the range bag means maintenance can happen on the spot rather than waiting for a bench session at home which is exactly the situation a competitor faces when a magazine starts acting up between stages. The dark green finish makes the upgraded springs instantly distinguishable from factory springs during a rebuild so there is no guessing about which magazines have been serviced and it is a quiet way to show TANDEMKROSS pride at the same time. These fit all Browning Buck Mark models and for the rimfire competitor or plinker keeping a well-worn magazine set in service they are available for sale at GrabAGun. TANDEMKROSS Green Springs Magazine Springs Specifications Brand: TANDEMKROSS Model: Green Springs Magazine Springs Caliber: .22 LR Fits: Browning Buck Mark Color: Green Quantity: 3 Available At: GrabAGun