# US 5,706,599 A · Rifle with interchangeable barrel

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- Number: US 5,706,599 A
- Document ID: US5706599A
- Status: Granted
- Kind: A
- Application number: 08/444,209
- Filed: 1995-05-18
- Granted: 1998-01-13
- Earliest claimed: 1995-05-18
- Assignees: Modern Muzzleloading, Inc.
- Inventors: William A. Knight
- Web page: https://patentgrep.com/patent/US5706599A

## CPC

- F41A 21/485: {using screws or bolts}
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE

## Abstract

A rifle has a conventional gun stock, a receiver mounted thereon immediately rearwardly of an elongated barrel. The receiver has a forward end and a hollow forward end portion to detachably receive the rearward end of the barrel. The barrel has a rearward end portion that is tapered and which is complementary in shape to the tapered interior wall of the hollow forward end portion of the receiver. The receiver and the barrel have matching indicia marks to permit them to be properly aligned when assembled. The rearward end portion of the barrel has a pair of concave shaped wells which are substantially aligned, but partially offset, from threaded apertures in the receiver. Screws having rounded inner ends are mounted within the threaded apertures and penetrate into the wells and forcibly draw the barrel and the receiver into tight engagement with each other.

## Claims

### Claim 1

A rifle having a replaceable barrel, comprising,
a gun stock,
a receiver on said gun stock,
a barrel on said gun stock secured to said receiver,
said receiver having an open forward end, and a hollow forward end portion detachably receiving a rearward end portion of said barrel,
said open hollow forward end portion of said receiver having an interior diameter that is tapered to have a progressively smaller diameter rearwardly of said open forward end,
the rearward end portion of said barrel being tapered and being complimentary in shape to said hollow forward end portion of said receiver, and
means detachably securing said rearward end portion of said barrel within said hollow forward end portion of said receiver, said means comprising the rearward end portion of said barrel having at least one concave shaped well, and said hollow forward end portion of said receiver having a threaded bore therein slightly offset and in partial radial disalignment with said concave shaped well, and a set screw in said threaded bore extending into said concave shaped well to forcibly draw said barrel and said receiver into tight engagement with each other.

### Claim 2 (depends on 1)

The rifle of claim 1 wherein said rearward end portion of barrel and said hollow forward end portion of said receiver have abutting surfaces to limit the penetration of said barrel into said receiver.

### Claim 3 (depends on 1)

The rifle of claim 1 wherein said rearward end portion of said barrel has two concave shaped wells and said hollow end portion of said receiver has two of said threaded bores.