Universal mount for rifle

• US 5,590,484 A
• Filed: 08/17/1995
• Issued: 01/07/1997
• Est. Priority Date: 08/17/1995
• Status: Expired due to Fees

• Current Assignee: FN Manufacturing, LLC (Société Herstalienne Pour La Fin Lindustrie Et le Commerce)
• Original Assignee: FN Manufacturing, Inc.
• Inventors: Baker, Richard, Mooney, personal representative, by Virginia R., Mooney, deceased, Aurelius A., Schmitter, Edward P.
• Primary Examiner(s): Jordan, Charles T.
• Assistant Examiner(s): CHELLIAH, MEENA A
• Application Number:
  US08/516,028
• Time in Patent Office: 509 Days
• Field of Search: 42/100, 42/101, 42/103, 89/37.04, 33/361, 362/110
• US Class Current: 42/111
• CPC Class Codes: F41G 1/16 Adjusting mechanisms therefor; Mountings therefor
• CPC Class Codes: F41G 1/46 for particular applications
• CPC Class Codes: F41G 11/003 Mountings with a dove tail element, e.g. "Picatinny rail systems"

Abstract

A universal mount for a rifle comprises an upper rail having a plurality of traverse ribs running from the back of the upper receiver to the gas block, and a hand guard surrounding the barrel. The hand guard has side mounts allowing the addition of accessory devices such as flashlights and laser sights. A lower rail, designed to accept a grenade launcher and a bayonet, resides between the barrel and the hand guard. A heat shield is attached to the hand guard to protect the marksman from injury. A semicircular retaining ring locks the hand guard to the gas block by means of a throughhole which matingly engages a pin located in the muzzle end of the hand guard. When in place, the present invention provides a weapons'"'"' platform which achieves and maintains continuous alignment between the sight line of any optical attachments and the direction of a barrel that has become deformed due to thermal stress. The present invention can be used alone or in conjunction with a ballistic optimization system and can be backfitted onto an existing rifle without altering its basic components.

Claims

1. A universal mount for supporting at least one accessory device, said mount for use with a rifle, said rifle having an upper receiver, a gas block, a rear mount and a barrel nut, said upper receiver having a notch formed thereon, said barrel nut having a counter bore and a plurality of projections, said universal comprising:

an upper rail having a receiver end and an opposing muzzle end, said upper rail extending from the rear of said upper receiver of said rifle to said gas block of said rifle, said upper rail having a top surface and a bottom surface, said upper rail having a notch formed in said bottom surface and proximate to said muzzle end;

a hand guard attached to said upper rail, said hand guard having opposing sides and a bottom portion, said hand guard surrounding said barrel of said rifle in spaced relation and attached to said rear mount and said gas block of said rifle, said hand guard having a plurality of heat dissipating holes formed along said opposing sides, said hand guard having a throughhole formed along said bottom surface, said hand guard having a plurality of side mounts extending therefrom;

a lower rail positioned between said barrel of said rifle and said bottom surface of said hand guard, said lower rail having a receiver end and a muzzle end, a top surface and a bottom surface, said lower rail having a pair of mounts formed in said bottom surface for receiving a grenade launcher, said lower rail having a channel formed along said bottom surface, said channel receiving said bottom portion of said hand guard;

a semi-circular retaining clip, said retaining clip received by said gas block of said rifle and within said notch of said upper rail to hold said upper rail to said gas block of said rifle; and

a heat shield attached to said hand guard, said heat shield having a bottom portion, said heat shield having at least one aperture formed in said bottom portion, said at least one aperture being aligned with at least one mount of said pair of mounts of said lower rail.

2. The universal mount as recited in claim 1, wherein said top surface of said upper rail further comprises a plurality of equally spaced, transverse ribs extending therefrom, said top surface of said upper rail having a rear sight and a front sight, said rear sight pivoting about a pivot point, said rear sight positioned proximate to said receiver end of said upper rail, said front sight pivoting about a pivot point, said front sight positioned proximate to said muzzle end of said upper rail.

3. The universal mount as recited in claim 1, wherein said gas block of said rifle has a circumferential groove, wherein said retaining clip further comprises an ear extending therefrom, said ear having a hole formed therethrough, said hand guard having a spring pin housed in one side mount of said plurality of said side mounts, said hole formed in said ear of said retaining clip receiving said spring pin in said one side mount when said retaining clip is rotated in said circumferential groove of said gas block.

4. The universal mount as recited in claim 1, wherein said lower rail further comprises a collar extending from said top surface of said lower rail and beyond said muzzle end of said lower rail and a pin extending horizontally from said muzzle end of said lower rail, said collar residing within said counter bore of said barrel nut of said rifle, said pin being positioned between the two lowermost projections of said plurality of projections of said barrel nut, said lower rail having a bayonet mount extending horizontally from said muzzle end.

5. The universal mount as recited in claim 1, wherein said lower rail further comprises a spring pin housed therein, said spring pin engaging said hand guard when said hand guard is placed within said channel of said lower rail.

6. The universal mount as recited in claim 1, wherein said upper rail, said lower rail and said hand guard are made of a lightweight aluminum alloy, said retaining clip is made of steel and said heat shield is made of a polymer.

7. The universal mount as recited in claim 1, wherein said receiver end of said upper rail is received by said notch in said upper receiver of said rifle.

8. A weapon comprising:

a rifle comprising

an upper receiver having a notch formed thereon,

a barrel having a receiver end and an opposing muzzle end,

a gas block affixed to said barrel proximate to said muzzle end, said gas block having a circumferential groove and a channel formed in the lowermost portion,

a barrel nut affixed to said receiver end of said barrel, said barrel nut having a plurality of projections and a counter bore, and

a rear mount surrounding said barrel nut, said rear mount having an outer surface, said outer surface having a gas tube slot formed therethrough,

a universal mount comprising;

an upper rail having a receiver end and an opposing muzzle end, said upper rail extending horizontally from the rear of said upper receiver of said rifle to said gas block of said rifle, said upper rail having a top surface and a bottom surface, said upper rail having a notch formed in said bottom surface and proximate to said muzzle end,

a hand guard attached to said upper rail, said hand guard having opposing sides, an interior, a receiver end and a muzzle end, said hand guard surrounding said barrel of said rifle in spaced relation, said receiver end of said hand guard engaging said rear mount, said muzzle end of said hand guard engaging said gas block, said hand guard having a plurality of heat dissipating holes formed along said opposing sides, said hand guard having a throughhole formed along said bottom surface, said hand guard having a plurality of side mounts extending therefrom,

a lower rail positioned between said barrel of said rifle and said bottom surface of said hand guard, said lower rail having a receiver end and a muzzle end, a top surface and a bottom surface, said lower rail having a pair of mounts formed on said bottom surface for receiving a grenade launcher, said lower rail being received by said channel in said gas block, said lower rail having a channel formed along said bottom surface, said channel of said lower rail receiving said bottom portion of said hand guard,

a semi-circular retaining clip, said retaining clip received by said gas block of said rifle and within said notch of said upper rail to hold said upper rail to said gas block, and

a heat shield attached to said hand guard, said heat shield having a bottom portion, said heat shield having at least one aperture formed in said bottom portion, said at least one aperture being in alignment with at least one mount of said pair of mounts of said lower rail.

9. The weapon as recited in claim 8, wherein said top surface of said upper rail further comprises a plurality of equally spaced, transverse ribs extending therefrom, said top surface of said upper rail having a rear sight and a front sight, said rear sight pivoting about a pivot point, said rear sight positioned proximate to said receiver end of said upper rail, said front sight pivoting about a pivot point, said front sight positioned proximate to said muzzle end of said upper rail.

10. The weapon as recited in claim 8, wherein said retaining clip further comprises an ear extending therefrom, said ear having a hole formed therethrough, said hand guard having a spring pin housed in one side mount of said plurality of said side mounts, said hole formed in said ear of retaining clip receiving said spring pin in said one side mount when said retaining clip is rotated in said circumferential groove of said gas block.

11. The weapon as recited in claim 8, wherein said lower rail further comprises a collar extending from said top surface of said lower rail and beyond said muzzle end of said lower rail and a pin extending horizontally from said muzzle end of said lower rail, said collar residing within said counter bore of said barrel nut of said rifle, said pin being positioned between the two lowermost projections of said plurality of projections of said barrel nut, said lower rail having a bayonet mount extending horizontally from said muzzle end.

12. The weapon as recited in claim 8, wherein said lower rail further comprises a spring pin housed therein, said spring pin engaging said hand guard when said hand guard is placed within said channel of said lower rail.

13. The mount as recited in claim 8, wherein said upper rail, said lower rail and said hand guard are made of a lightweight aluminum alloy, said retaining clip is made of steel and said heat shield is made of a polymer.

14. The weapon as recited in claim 8, wherein said receiver end of said upper rail is received by said notch in said upper receiver of said rifle.

15. A weapon comprising:

a rifle comprising

an upper receiver having a notch formed thereon,

a barrel having a receiver end and an opposing muzzle end,

a gas block affixed to said barrel proximate to said muzzle end, said gas block having a circumferential groove and a channel formed in the lowermost portion,

a barrel nut affixed to said receiver end of said barrel, said barrel nut having a plurality of projections and a counter bore, and

a rear mount surrounding said barrel nut, said rear mount having an outer surface, said outer surface having a gas tube slot formed therethrough,

a universal mount comprising

an upper rail having a receiver end and an opposing muzzle end, said upper rail extending horizontally from the rear of said upper receiver of said rifle to said gas block of said rifle, said upper rail having a top surface and a bottom surface, said upper rail having a notch formed in said bottom surface and proximate to said muzzle end,

a hand guard attached to said upper rail, said hand guard having opposing sides, an interior, a receiver end and a muzzle end, said hand guard surrounding said barrel of said rifle in spaced relation, said receiver end of said hand guard engaging said rear mount, said muzzle end of said hand guard engaging said gas block, said hand guard having a plurality of heat dissipating holes formed along said opposing sides, said hand guard having a throughhole formed along said bottom surface, said hand guard having a plurality of side mounts extending therefrom,

a lower rail positioned between said barrel of said rifle and said bottom surface of said hand guard, said lower rail having a receiver end and a muzzle end, a top surface and a bottom surface, said lower rail having a pair of mounts formed on said bottom surface for receiving a grenade launcher, said lower rail being received by said channel in said gas block, said lower rail having a channel formed along said bottom surface, said channel of said lower rail receiving said bottom portion of said hand guard,

a semi-circular retaining clip, said retaining clip received by said gas block of said rifle and within said notch of said upper rail to hold said upper rail to said gas block, and

a heat shield attached to said hand guard, said heat shield having a bottom portion, said heat shield having at least one aperture formed in said bottom portion, said at least one aperture being in alignment with at least one mount of said pair of mounts of said lower rail,

a ballistic optimizing system, said ballistic optimizing system attached to said muzzle end of said barrel of said rifle.

16. The weapon as recited in claim 15, wherein said top surface of upper rail further comprises a plurality of equally spaced, transverse ribs extending therefrom, said top surface of said upper rail having a rear sight and a front sight, said rear sight pivoting about a pivot point, said rear sight positioned proximate to said receiver end of said upper rail, said from sight pivoting about a pivot point, said front sight positioned proximate to said muzzle end of said upper rail.

17. The weapon as recited in claim 15, wherein said retaining clip further comprises an ear extending therefrom, said ear having a hole formed therethrough, said hand guard having a spring pin housed in one side mount of said plurality of said side mounts, said hole formed in said ear of said retaining clip receiving said spring pin in said one side mount when said retaining clip is rotated in said circumferential groove of said gas block.

18. The weapon as recited in claim 15, wherein said lower rail further comprises a collar extending from said top surface of said lower rail and beyond said muzzle end of said lower rail and a pin extending horizontally from said muzzle end of said lower rail, said collar residing within said counter bore of said barrel nut of said rifle, said pin being positioned between the two lowermost projections of said plurality of projections of said barrel nut, said lower rail having a bayonet mount extending horizontally from said muzzle end.

19. The weapon as recited in claim 15, wherein said lower rail further comprises a spring pin housed therein, said spring pin engaging said hand guard when said hand guard is placed within said channel of said lower rail.

20. The mount as recited in claim 15, wherein said upper rail, said lower rail and said hand guard are made of a lightweight aluminum alloy, said retaining clip is made of steel and said heat shield is made of a polymer.

21. The weapon as recited in claim 15, wherein said receiver end of said upper rail is received by said notch in said upper receiver of said rifle.