After World War One, there was a lot of tinkering with the BAR by the US military. It was recognized as being a very good platform, but the original M1918 configuration left a lot to be desired. It was deemed to heavy to use effectively form the shoulder, but also not really well suited to sustained fire. In an effort to optimize it for use as a dynamic support weapon by a small squad, the Infantry & Cavalry Board requested a model with a heavier barrel and lightweight bipod in 1920. Six experimental examples were made form existing BARs, and the design was formalized two years later as the Model 1922.

This pattern of BAR has a heavy finned barrel to give it more sustained fire capacity and a folding bipod and rear monopod for more accurate use prone. The Board also experimented with larger magazines, and ended up recommending a 30-round size - although this was never put into production. In total, 500 of the Model 1922 guns were made, all converted from existing BARs. Experimentation continued slowly, and eventually in 1937 a lighter pattern was adopted as the M1918A1. The Model 1922 was formally declared obsolete in April 1941, and virtually all of them were rebuilt to the new M1918A2 pattern for use in World War Two. Surviving examples like this one are extremely rare - this is the only known example in private hands.