This bundle includes our Low-drag No-snag Magazine Follower and a Wolff Extra-Power 5+1 Replacement Magazine Spring for 12-gauge firearms.  The follower is made from machined aluminum with a hard anodized coating.  It is designed with relief cuts to minimize friction and optimize your magazine.  The Wolff spring will fit 12-gauge models with 5+1 round magazine tubes, and provides extra power to ensure proper magazine function.