# US 2018/0023919 A1 · Firearm handguard assembly

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- Number: US 2018/0023919 A1
- Document ID: US20180023919A1
- Status: Published application
- Kind: A1
- Application number: 15/701,982
- Filed: 2017-09-12
- Published: 2018-01-25
- Earliest claimed: 2016-05-12
- Assignees: Bravo Company Mfg, Inc.
- Applicants: Bravo Company Mfg. Inc.
- Inventors: Eric Stephen Kincel; Jeffrey James O'Brien
- Web page: https://patentgrep.com/patent/US20180023919A1

## CPC

- F41C 23/16: Forestocks; Handgrips; Hand guards (pump-action guns F41C7/02)
- F41A 5/18: gas-operated
- F41A 21/485: {using screws or bolts}
- F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE

## Abstract

A firearm handguard assembly system is disclosed. The system comprises a handguard including at least four apertures, a barrel nut having a first threaded end and a second smooth end, the threaded end coupled to the handguard, and an index block including at least four apertures, the index block coupled to the handguard by at least four screws, each screw having a head and a tip, the tip threaded through: one of the at least four apertures on the index block, and one of the at least four apertures on the handguard.

## Claims

### Claim 1

A firearm handguard assembly system, the system comprising:
a handguard including at least four apertures;
a barrel nut having a first threaded end and a second smooth end, the threaded end coupled to the handguard; and
an index block including at least four apertures, the index block coupled to the handguard by at least four screws, each screw having a head and a tip, the tip threaded through: one of the at least four apertures on the index block, and one of the at least four apertures on the handguard.

### Claim 2 (depends on 1)

The system of claim 1, wherein the barrel nut further comprises: a groove between a first lip on the first threaded end and a second lip on the second smooth end.

### Claim 3 (depends on 2)

The system of claim 2, wherein the index block further comprises one or more feet.

### Claim 4 (depends on 3)

The system of claim 3, wherein the one or more feet of the index block interfaces with the groove of the barrel nut between the first lip and the second lip.

### Claim 5 (depends on 1)

The system of claim 1, wherein the firearm handguard assembly system further includes a gas tube.

### Claim 6 (depends on 5)

The system of claim 5, wherein the threading of the screws produces a residual force around the gas tube.

### Claim 7 (depends on 5)

The system of claim 5, wherein the threading of the screws produces a residual force under the gas tube.

### Claim 8 (depends on 1)

The system of claim 1, wherein the handguard is comprised of magnesium.

### Claim 9 (depends on 1)

The system of claim 1, wherein the handguard contains a picatinny rail.

### Claim 10 (depends on 1)

The system of claim 1, wherein the handguard contains keymod holes.

### Claim 11

A firearm comprising:
an upper receiver;
a handguard including at least four apertures; and
a handguard assembly system for mounting the handguard to the upper receiver, the handguard assembly system comprising:
a barrel nut having a first threaded end and a second smooth end, the threaded end coupled to the handguard, and
an index block including at least four apertures, the index block coupled to the handguard by at least four screws, each screw having a head and a tip, the tip threaded through: one of the at least four apertures on the index block, and one of the at least four apertures on the handguard.

### Claim 12 (depends on 11)

The firearm of claim 11, wherein the barrel nut further comprises: a groove between a first lip on the first threaded end and a second lip on the second smooth end.

### Claim 13 (depends on 12)

The firearm of claim 12, wherein the index block further comprises one or more feet.

### Claim 14 (depends on 13)

The firearm of claim 13, wherein the one or more feet of the index block interfaces with the groove of the barrel nut between the first lip and the second lip.

### Claim 15 (depends on 11)

The firearm of claim 11, wherein the firearm handguard assembly system further includes a gas tube.

### Claim 16 (depends on 15)

The firearm of claim 15, wherein the threading of the screws produces a residual force around the gas tube.

### Claim 17 (depends on 15)

The firearm of claim 15, wherein the threading of the screws produces a residual force under the gas tube.

### Claim 18 (depends on 11)

The firearm of claim 11, wherein the handguard is comprised of magnesium.

### Claim 19 (depends on 11)

The firearm of claim 11, wherein the handguard contains a picatinny rail.

### Claim 20 (depends on 11)

The firearm of claim 11, wherein the handguard contains keymod holes.