The Casull Model 290 semi auto Carbine is the predecessor to the American 180 .22 rifle. Designed and manufactured from 1966 - 1967 (by Dick Casull, the same Dick Casull that designed the .454 Casull revolver) the Casull Model 290 is similar in appearance to the American 180 as the 290 round drum magazine is mounted on top of the receiver in a similar manner. It was one of the most expensive guns of its time (mid 1960's) selling for around $1060.00 at that time. Only 87 pieces were manufactured and all are hand made with quality that compares with a Colt Thompson, the receiver is machined out of a solid block of steel, all parts are hand fitted, built to last forever. The firearm fires from an open bolt with the bolt face striking the .22lr rim fire cartridge on a diagonal striking both edges for positive ignition. At the time it was a popular gun to present to foreign dignitaries. Ferdinand Marcos of the Philippines owned one. I believe that it is one of the highest capacity drum magazine (290 rounds) ever produced. An extremely rare and unique firearm. Condition is excellent like new. Layaway available. Credit cards accepted at a 3.5% fee. Accepting offers