The AMT Lightning 25/22 was a .22LR-caliber semi-automatic rifle manufactured by Arcadia Machine & Tool (AMT).As is alluded to in the nomenclature, the Lightning 25/22 is functionally a clone of the Ruger 10/22 with the substitution of a larger 25-round magazine instead of the 10-round magazine used by Ruger. Also, the receiver is stainless steel rather than aluminum and features a Stainless Steel and Nylon folding stock and pistol grip rather than the wooden stock mounted on the 10/22.