1. Fenris: An entry-level and affordable stock available exclusively in grey. It offers a 6-degree angled grip, push-button adjustable LOP (Length of Pull), and adjustable cheek-piece height. A versatile choice suitable for shooters of all types.
2. Bifrost: Building upon the features of the Fenris, the Bifrost stock introduces additional enhancements. It boasts a height-adjustable recoil pad with a canting mechanism, the grip and fore-end are rubberized for improved grip, and a Picatinny rail is installed to accommodate a bag rider and shooting bags. Attachment options are available on the front, sides, and bottom of the front using Picatinny rails, and it can also support a spigot for the GRS Bipod. The Bifrost is the strongest and lightest stock offered by GRS.
3. Warg: Sharing the rear and center sections with the Bifrost, the Warg stock distinguishes itself with a tactical M-Lok fore-end. This feature enables the attachment of accessories such as the top-mounted GRS Bipod. The Warg stock is fully adjustable, and ergonomic, and combines the desirable qualities of a rigid chassis stock fore-end, resulting in optimal stability.