Ifs-r (integrated flip-up sight-rear) system, ar-15/10 and m16/m4 variants and others

Abstract

A firearm sight system is provided having a mounting rail with an upper surface. The mounting rail defines a pocket below the upper surface. A sight arm is pivotally connected to the rail and movable between an elevated position angularly offset from the upper surface of the rail and a stowed position in which the sight arm occupies the pocket and does not protrude above the upper surface of the rail.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Patent Application No. 62 / 619,855 filed on Jan. 21, 2018, entitled “IFS-R (Integrated Flip-Up Sight-Rear) System, AR-15 / 10 and M16 / M4 Variant and Others”, which is hereby incorporated by reference in its entirety for all that is taught and disclosed therein.FIELD OF THE INVENTION[0002]The present invention relates to an integrated flip-up sight-rear system, and more particularly, to AR-15 / 10 and M16 / M4 variants and others.BACKGROUND OF THE INVENTION[0003]The modern AR-15 style rifle platform is primarily comprised of MIL-SPEC (Military Specification) components originally derived from the M16A1 / A2, M4A1 and M16A4 variants. Platforms include semi-automatic, burst and full-automatic fire control versions, as well as a multitude of caliber configurations. Most modern AR-15 components have retained either MIL-SPEC adherence and / or a close resemblance to the original 1956 Eugene Stoner an...

AI Technical Summary

Problems solved by technology

However, this design is rather impractical, as it often requires the use of a special tool, such as a hex driver, screw driver, Torx® driver, etc., to mount, adjust or uninstall on the Picatinny rail.

Furthermore, many of these devices are captivated to the Picatinny rail by a single fastener, screw or bolt, and are consequently susceptible to loosening during use and the subsequent loss of sight calibration or zero; thus, creating the added burden of always having to carry a special tool for this purpose, which could prove to be especially burdensome in a tactical environment.

Moreover, the deviation of reliance upon Iron Sights to an electronic optical device, which can illuminate reticles, provide electronic magnification and / or thermal imaging, tends to produce an undesired dependence, thus effecting a considerable tactical disadvantage as these optics require a constant, replenishing source of power (i.e. batteries, power cells, etc.).

However, once a source of power is no longer readily available, the device would be rendered inoperable, causing conditions to rapidly deteriorate.

Additionally, while many configurations of the flip-up type utilize a locking mechanism, which must be pressed or released to permit folding, they are typically not impact resistant once positioned into the flip-up orientation, making them susceptible to strike or impact damage.

Another problematic condition of flip-up style sights is a deviation from the original MIL-SPEC sight centerline to the bore centerline.

As most rear flip-up style sights do not provide elevation adjustment or compensation, this condition can exceed the vertical adjustment travel (+ / −) of the front sight post.

Images