sentences:  The Springfield Armory M6 Scout is virtually identical to the original M6 and was made in three versions, a .22 Hornet over .410 gauge, a .22 Long Rifle over .410 gauge and a .22 Magnum over .410 gauge.The Scouts were also made with 18.25" barrels to comply with the National Firearms Act.The later models had large oversized trigger guards and Picatinny rails for mounting a wide range of sights and scopes.