where did the term lock stock and barrel come from
Lock, stock, and barrel In the early days of firearms manufacturing, individual craftsmen made individual components one at a time. One craftsman made the "lock" which would have been a "match lock", "wheel lock", "flint lock" etc. The next craftsman made the barrel, and the last craftsman, who was a woodworker made the stock. At some point, a craftsman or a merchant started advertising "Lock Stock and Barrel" meaning that you could get your entire gun at one location and did not have to go from craftsman to craftsman to get it finished.
Lever action Probably the first lever-action rifles on the market were Colt's 1st and 2nd Model Ring Lever rifles, both cap and ball rifles, produced by the Patent Arms Mfg. Co. Paterson, N.J.-Colt's Patent between 1837 and 1841. The ring-lever was located in front of the trigger. This loading-lever, when pulled, would index the cylinder to the next position and cock the internal hidden hammer.