Sako ARGThe Sako ARG is a Finnish family of assault and battle rifles designed and manufactured by Sako.WWW sako.global/series/sako-a...BackgroundPreviously known as the K22, the ARG was designed along with the Finnish Defence Forces and the Swedish Armed Forces.DesignThe ARG is based on the AR-10 and AR-15 design by Eugene Stoner but features a proprietary short-stroke gas piston system, similar to Heckler & Koch HK416 and other piston versions of AR-15-type assault rifles.VariantsARG brandingARG 40 GPAssault rifle variant featuring short-stroke gas piston.ARG 40 DIVariant featuring direct impingent operation.ARG 50 GPDesignated marksman rifle variant.Military variantsAutomatkarbin 24Swedish variants.Users*