Firearm with accurizing means

Ordnance – Automatic – Movable barrel

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F41C 300

Patent

active

039759822

ABSTRACT:
A semi-automatic firearm of a type having a barrel loosely coupled with respect to a frame unit, such as the receiver of a pistol, and having a slide member disposed about the barrel and coupled to the frame or receiver unit for movement between advanced and retracted positions relative to the barrel includes accurizing means which serves to remove lost motion between the barrel and the slide where the slide carries the sights of the firearm. Lost motion is removed at the muzzle, at the breech, and in the sliding land-and-groove coupling between the slide and receiver so as to achieve repeatable, accurate performance of the firearm.

REFERENCES:
patent: 1427966 (1922-09-01), Nickl
patent: 3380346 (1968-04-01), Gustin
patent: 3411405 (1968-11-01), Pachmayr et al.
Jorgensen et al., "Rear Lock-Up Stabilizes .45 Pistol," American Rifleman, vol. 117, No. 8, Sept. 1969, p. 41.

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