Ordnance – Automatic – Blow back breech block
Patent
1995-04-12
1996-03-19
Johnson, Stephen M.
Ordnance
Automatic
Blow back breech block
42 25, F41A 354
Patent
active
054995698
ABSTRACT:
An M16 type rifle capable of being fired in automatic or semiautomatic mode is disclosed utilizing a blow-back system with a forcing cone breech and a matching conical bolt face. The blowback bolt assembly of the present invention allows elimination of the troublesome and easily fouled gas operating system of the conventional M16 rifle and further allows the rifle to be chambered for short low-pressure pistol cartridges such as the 45 ACP and the 40 S&W.
REFERENCES:
patent: 1144285 (1915-06-01), Becker
patent: 3776095 (1973-12-01), Atchisson
patent: 4358986 (1982-11-01), Giorgio
Caddell Michael J.
Johnson Stephen M.
Olympic Arms, Inc.
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