Editing Mac 1 Annihilator (section)

== Development ==

McMurray & Son was originally an airgun business. The company entered paintball equipment development after contacting [[Pursuit Marketing]] founders David Freeman and Jeff Perlmutter in late 1984 and obtaining Sheridan/Pursuit paintball pistols.[1]

Early work addressed the limitations of Sheridan-based pistols and rifles, including barrel length, magazine capacity, blowback and the operation of pump and gravity-feed systems. McMurray & Son credited Steve “Gunner” Tetz, then an equipment supplier at [[SC Village|Sat Cong Village]], with developing an early workable combination of pump action and gravity feed.[1]

When Sheridan considered disposing of approximately 200 partly completed paintball rifles, McMurray & Son attempted to purchase them and borrowed US$14,000 for the proposed transaction. The sale did not proceed, but work undertaken during the project contributed to the development of a retrofittable Delrin anti-blowback pump.[1]

McMurray & Son also developed a magazine-extension adaptor which was subsequently sold to Sheridan. Further work with Sheridan and Pursuit Marketing produced a centre-fire expansion-chamber bolt and an approximately 12½-inch barrel. Installing this barrel arrangement on a Sheridan-based pistol led to the Annihilator.[1]