Wolff Extra Power Magazine Springs are used when magazine reliability is critical or when original factory springs have lost their tension. These extra power springs put more pressure on the follower, presenting the cartridge to the slide with more force.
Product usage may vary with application
Material: Premium Spring Steel
Features: Quality replacement springs
Gunsmithing Required: Requires disassembly and assembly for installation
Fits Sig magazines with metal floorplate (floorplate locking tab is on the spring).