Quick view American Tactical GER GGSG1610M GSG-16 22LR 16.25 10R MNT $436.60 $349.28 The ATI GSG (German Sports Guns) is a semi-auto rimfire rifle. Featuring a polymer grip and receiver; adjustable front and rear sights; synthetic collapsible stock with storage compartment; non-threaded barrel with a faux suppressor. Compare Add to Cart