Handguards and Upper Receivers Alone and in Combination

• US 20180128571A1
• Filed: 09/12/2017
• Published: 05/10/2018
• Est. Priority Date: 09/13/2016
• Status: Active Grant

• Current Assignee: Leitner-Wise AG Ltd.
• Original Assignee: Christopher Donald Wood, Paul David Higgs, Paul Leitner-Wise
• Inventors: Leitner-Wise, Paul, Higgs, Paul David, Wood, Christopher Donald
• Granted Patent: US 10,240,892 B2
• Time in Patent Office: Days
• CPC Class Codes: F41A 3/66 Breech housings or frames; Receivers
• CPC Class Codes: F41C 23/16 Forestocks; Handgrips; Hand guards pump-action guns F41C7/02
• CPC Class Codes: F41G 11/003 Mountings with a dove tail element, e.g. "Picatinny rail systems"

Abstract

In one embodiment the invention is a hand guard, comprising: a generally hollow cylindrical body having a rail securing top surface; a top Picatinny rail securable to the rail securing top surface. The top rail is in slidable engagement with the rail securing top surface such that the top Picatinny rail is removable from the top surface. The generally hollow cylindrical body is populated with vent holes. In another embodiment an upper receiver is provided, the upper receiver includes a front face located at a front end of the upper receiver, the upper receiver having a Picatinny rail atop thereof, the Picatinny rail having a last rail located at a front end of the Picatinny rail, the last rail is aligned with the front face. In another embodiment the hand guard has a fixed Picatinny rail atop thereof. At least one plug is optionally provided for fitting into vent holes.

Claims

1. A hand guard, comprising:

a generally hollow cylindrical body having a rail securing top surface;

a top rail securable to the rail securing top surface,

wherein the top rail is in slidable engagement with the rail securing top surface such that the top rail is removable from the top surface, and

wherein the generally hollow cylindrical body is populated with vent holes.

2. A hand guard according to claim 1 further comprising an upper receiver in which the hand guard is attached to the upper receiver, wherein the upper receiver includes a front face located at a front end of the upper receiver, the upper receiver having a Picatinny rail with a last rail located at a front end of the Picatinny rail, wherein the last rail is aligned with the front face.

3. A hand guard according to claim 1 further comprising a plug inserted into a vent hole.

4. The hand guard according to claim 3 wherein the plug comprises:

a wire mesh; and

a rim, wherein the rim defines a perimeter further defining the limits of the wire mesh.

5. The hand guard according to claim 4 wherein the wire mesh and rim are made of aluminum.

6. The hand guard according to claim 3 wherein the plug comprises:

at least one metal strip; and

a rim.

7. The hand guard according to claim 6 wherein the at least one metal strip and rim are made of aluminum.

8. A hand guard, comprising:

a generally hollow single piece cylindrical body having a top surface, wherein a Picatinny rail extends at least part way along the top surface, the cylindrical body has front and rear opposite open ends, a bottom side extending between the front and rear opposite ends, and a longitudinal axis; and

a barrel clamp positioned at the rear end and which extends across the bottom side of the hand guard,

wherein the Picatinny rail extends immediately from the rear end of the cylindrical body,

wherein the rear end includes first and second tabs located below the Picatinny rail and extending from the top surface at the rear end, and

wherein the generally hollow cylindrical body is populated with vent holes.

9. A hand guard according to claim 8 further comprising an upper receiver in which the hand guard is attached to the upper receiver, wherein the upper receiver includes a front face located at a front end of the upper receiver, the upper receiver having a Picatinny rail with a last rail located at a front end of the Picatinny rail, wherein the last rail is aligned with the front face.

10. A hand guard according to claim 8 further comprising a plug inserted into a vent hole.

11. The hand guard according to claim 10 wherein the plug comprises:

a wire mesh; and

a rim, wherein the rim defines a perimeter, wherein the perimeter defines the limits of the wire mesh.

12. The hand guard according to claim 11 wherein the wire mesh and rim are made of aluminum.

13. The hand guard according to claim 8 further comprising an upper receiver, the upper receiver having first and second external elongated recesses, wherein the first and second tabs fit inside the first and second external elongated recesses, respectively.

14. The hand guard according to claim 10 wherein the plug comprises:

at least one metal strip; and

a rim, wherein the rim defines a perimeter, wherein the perimeter defines the limits of the wire mesh.

15. The hand guard according to claim 14, wherein the at least one metal strip and rim are made of aluminum.

16. An upper receiver, wherein the upper receiver comprises a front face located at a front end of the upper receiver, the upper receiver having a Picatinny rail atop thereof, the Picatinny rail having a last rail located at a front end of the Picatinny rail, wherein the last rail is aligned with the front face, and wherein the upper receiver further comprises opposite facing first and second external elongated recesses located below the Picatinny rail.