FEDERAL LABORATORIES 'MODEL 203-A RIOT CARBINE' 1-1/2" (38M.M.). 12" Barrel. sn:'G'40394. A Classic Early Riot Carbine used by Many Military and Law Enforcement Agencies. With Fixed Walnut Buttstock and Black Steel Foregrip. In Beautiful 98% Condition. Mint Bore. Shows Very Little Use. $1195.  Item: SG-1017.