+3 Zev Tech Extended Mag Release 4TH Gen MR-SM-4G C $59.99 Designed with an aggressive rearward angle and a non-slip textured face that matches the factory finish of your Gen 4 grip. This mag release is a drop-in replacement part. Not compatible with Gen3 models. In stock Quantity: 1 Add to Bag Product Details UPC: 811745020518 Brand: ZEV Technologies Save this product for later Favorite