The Mauser was the first practical version of this type of rifle with a manually operated slide
He acquired a Model 12 version with H-S Precision composition stock, 
and... [DOC] [TLE] The Colt .45 Automatic - A Shop Manual Vol.1 by Kuhnhausen.pdf [PAR] The U.S. M1911/M1911A1 Pistols & Commercial M1911 type pistols -.