Introduced as the Webley Senior in 1925 and as the Webley Premier in 1964, Webley's air gun design was one of the first to utilize the barrel as a cocking lever, a feature which saw widespread adoption for single shot piston driven air guns. Blade front and adjustable notch rear sights. With a hardwood case, purple felt lined with a Webley & Scott paper label inside the lid, a sealed tin of Bisley Magnum .22 pellets, barrel brush, spare spring and rod assembly, and spare gaskets.

Similar to A. The case contains an extra 22 caliber barrel with cocking arm, a tin of .177 Webley pellets, and some other small parts.