Remington Model 241

The Remington Model 241 Speedmaster was an autoloading rimfire rifle made by Remington Arms from a John Browning design. Remington brought it out in 1935, replacing the slightly smaller Model 24, which was based on the same Browning semi-automatic .22 design. The article reports production from 1935 to 1951 in its text, though its infobox gives 1935 to 1949, and says Remington recorded 107,345 rifles chambered for the .22 Short or .22 Long Rifle. The rifle is a takedown design, so the barrel can be separated from the receiver for transport. It is very similar to the Browning SA-22, and the main difference lies in how the barrel is tightened against the receiver: the Model 241 uses a dual-sided nut with an interrupted-screw thread inside and a full thread outside, which sits in a threaded hole at the front of the receiver and is held in place by a smooth-sided slug pressed against it and secured by a locking screw. It is a sporting arm rather than a military issue rifle.