Compact gas block with rail interface

Details Compact gas block with rail interface Compact gas block with rail interface

2011-04-12

2011-04-12

Carone, Michael (Department: 3641)

Ordnance

Automatic

Gas piston type

C089S191010

Reexamination Certificate

active

07921760

ABSTRACT:
A compact gas block with rail interface has a first longitudinal bore for receiving a firearm barrel, the barrel having a gas port, the gas block having a second longitudinal bore for receiving a gas tube or operating element. The block includes a vertical bore aligned with the barrel gas port and connecting the first and second block bores and permitting passage of cartridge gas from the barrel gas port to the gas tube. The improved gas block includes a military rail, forward of the gas tube, the forward location permitting rail and accessories to lie close to the barrel, enabling handguard installation and removal, improving handling, and reducing firearm bulk.

REFERENCES:
patent: 3330183 (1967-07-01), Loffler
patent: 4798124 (1989-01-01), Hurlemann
patent: 5768818 (1998-06-01), Rustick
patent: 5831202 (1998-11-01), Rustick
patent: 5945626 (1999-08-01), Robbins
patent: 2006/0283318 (2006-12-01), Beaty
Brownells Catalog No. 58, 2005-2006, pp. 21 and 185, pub 2005, Montezuma, Iowa, USA, describing Prior Art rail and low-profile gas blocks.
U.S. Appl. No. 60/734,193, Jerome B. Tankersley.
U.S. Appl. No. 11/593,439, Jerome B. Tankersley.

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