.177 1000fps High precision rifled bore steel barrel . Two stage trigger. Cocking and trigger safety. Ambidextrous stock. Ventilated rubber recoil pad. Ergonomic design. For all you budding Bear Grylls adventurists, Gamo have teamed up with Bear Grylls to create the BG Adventure Survival air rifle. It's a .177 calibre version of the Shadow DX air rifle for Bear Grylls, achieving an attractive rifle, highlighting the contrast of black / orange.