Firearms bolt carrier assembly

Details Firearms bolt carrier assembly Firearms bolt carrier assembly

1984-06-25

1985-03-05

Bentley, Stephen C.

Ordnance

Automatic

Breech block lock

89185, 89198, 89199, F41D 1112, F41D 504

Patent

active

045023670

ABSTRACT:
A bolt carrier assembly has a housing (300) for supporting a bolt (317) and a P cross-sectionally shaped member (301) having the longer side of the P-shape secured to the housing, the P-shaped member being forwardly extended with respect to the bolt. The main drive spring (307) is located alongside the wrapped-over portion of the P-shaped member which main drive spring is arranged to provide motion to the housing and P-shaped member. An anti-bounce weight (354) is mounted inside the wrapped-over part of the P-shaped member and has a spring at one end which is compresed by the anti-bounce weight when the P-shaped member is suddenly retarded by the housing to which it is attached striking the barrel assembly. A latch (326-329) is spring biassed and shaped and dimensioned to interleave locking lugs (322) on the bolt (317), the latch being longitudinally retractable with respect to the housing.

REFERENCES:
patent: 2146185 (1939-02-01), Holek
patent: 3003400 (1961-10-01), Johnson
patent: 3745686 (1973-07-01), Koon
patent: 3931690 (1976-01-01), Soucy et al.
patent: 4019423 (1977-04-01), Johnson

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