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The Manville gun was a stockless, semi-automatic, revolver type gun, introduced in 1935 by Charles J. Manville.〔Machine Projector United States Patent US2101148. Applied for in March 11, 1935 and granted in December 7, 1937.〕 The Manville Gun was a large weapon, with a heavy cylinder being rotated for each shot by a clockwork-type spring. The spring was wound manually during the reloading. By 1938 Manville had introduced three different bore diameter versions of the gun, based on 12-gauge, 26.5-mm, or 37-mm shells. Due to poor sales, Manville guns ceased production in 1943. ==Manville 12-Bore Gun== The original, 1935, steel-and-aluminum weapon held twenty four rounds of 12-gauge x 2.75-inch (18.5mmx70mmR) shells in a spring-driven rotary-cylinder that had to be wound counter-clockwise before firing. It consisted of a steel barrel of , a rotating aluminum-alloy ammo cylinder, a single-piece steel body and foregrip, and wooden pistol grips. Loading and unloading were effected by unscrewing two thick, large-headed knobbed screws at the top of the weapon's cylinder that allowed the disassembly of the weapon into two halves. The forend and cylinder were the front half and the pistol-grip and cylinder backplate were the back half. The weapon's striker was engaged by rotating and then pushing in a knob at the back of the pistol grip (reversed to disengage it - rendering it safe). Each cylinder in the weapon had its own firing pin assembly. When the trigger is pulled the striker is cocked; when the trigger "breaks", the striker is released and hits the firing pin, firing the shell. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Manville gun」の詳細全文を読む スポンサード リンク
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