As soon as GRS introduced the GRS Berserk, they began thinking of ways of improving it. The GRS Bifrost is the corollary of the mix between GRS's "continuous improvement"" mindset and the market feedback through our clients. We set out to create a stock fully packed with features, lighter and stronger than all our previous offerings. If you are a fan of GRS' Speedlock adjustment system, you'll love GRS Bifrost's Speedlock2. They added height and tilt/cant adjustments for the recoil pad, in addition to the already recognizable length of pull and cheek adjustments that were standard on the Speedlock system. GRS made the Speedlock2 stronger, capable Mfg: Grs Riflestocks