Demand for air pistols grew in Britain in the 1920's hence rejuvenating Webley & Scott's market. The Mark I air pistol became the first of Webleys air pistols.
It was at this time the decision was made to build pneumatic (air) guns. The Firearms Act in 1920, restricting the sale of firearms to civilians, almost brought Webley & Scott to its knees. The Enfield No.2 manufactured from 1932 had been intended to replace the Webley revolvers, however, lack of materials and wartime shortages meant that the Webley would remain in the British Army until 1964. The Webley revolver would remain the main side arm of the British Army until 1964. In 1921 production of the Webley revolvers moved to the Royal Small Arms Factory, Enfield, which was owned by the British government. The famed Webley Revolvers were adopted by the British Army in 1887, becoming (for the most part) standard issue.
In 1897 Webley merged with W & C Scott & Sons to form Webley & Scott Revolver and Arms Company Ltd, Birmingham. Set-up by William Davis in Birmingham to produce bullet molds in 1790, Davis' son in law Philip Webley took over the company in 1834 who began the manfacture of percussion sporting guns, under the name of P.