IP Library › Granted Patent US 12674647
Granted Patent B2
US 12674647 · App. 18/947,920 · Granted Jul 7, 2026

Rail system for a revolver

Inventors: Cole A. Peterson (Little Canada, MN); Adam R. Renfroe (Victoria, MN)
F41G11/003F41G1/02
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Quick Facts
Patent No.
US 12674647
App. No.
18/947,920
Granted
Jul 7, 2026
Kind
B2
Abstract

A rail system is configured to be mounted to a revolver. The rail system can be configured as a quad rail system. The rail system can be assembled onto a revolver without altering the revolver. The quad rail system can be used to mount accessories to the revolver.

Claims (51)

1 . A rail system, comprising:

a first side piece having a forward end, a rearward end and an inner surface;

a second side piece having a forward end, a rearward end and an inner surface, the inner surfaces of the first and second side pieces being configured to, when the first side piece and the second side piece are connected together, form an elongate barrel receiving bore sized to frictionally engage a revolver barrel and provide a first rail coupled to the revolver;

a first resilient pad mounted to the first side piece; and

a second resilient pad mounted to the second side piece and the first and second pads being configured, when the first and second side pieces are connected together, along the elongate barrel receiving bore to frictionally engage the revolver barrel.

2 . The rail system of claim 1 wherein the first side piece defines a first set of apertures, and the second side piece defines a second set of apertures, the first and second sets of apertures being positioned to receive a set of connectors to connect the first side piece to the second side piece.

3 . The rail system of claim 1 wherein the revolver includes an ejector rod and a cylinder movable between an open position and a closed position, and wherein the first side piece of the rail system defines a slot that is positioned to accommodate movement of the ejector rod as the cylinder is moved between the open position and the closed position.

4 . The rail system of claim 1 wherein the inner surfaces of the first and second side pieces define a front sight cavity configured to receive a front sight disposed on the revolver barrel.

5 . The rail system of claim 1 and further comprising:

a top side piece configured to be mounted to a top side of the revolver barrel.

6 . The rail system of claim 5 wherein the top side piece further comprises;

a depending tab configured to, when the top side piece is coupled to the revolver barrel, frictionally engage a shoulder at a rearward end of the revolver barrel.

7 . The rail system of claim 6 wherein the first side piece and the second side piece, when connected together, define a tab receiving opening.

8 . The rail system of claim 7 wherein the top side piece comprises:

a forward tab that fits into and is frictionally engaged by the tab receiving opening.

9 . The rail system of claim 8 wherein the depending tab is configured to engage the shoulder and the forward tab is configured to couple the first and second side pieces to limit forward movement of the rail system in a direction generally parallel to a longitudinal axis of the barrel receiving bore.

10 . The rail system of claim 5 wherein the first side piece comprises;

a first rail;

a first upper set of lugs defining a first upper set of grooves; and

a first lower set of lugs defining a first lower set of grooves.

11 . The rail system of claim 10 wherein the second side piece comprises;

a second rail;

a second upper set of lugs defining a second upper set of grooves; and

a second lower set of lugs defining a second lower set of grooves.

12 . The rail system of claim 11 wherein, when the first and second side pieces are connected together, the first upper set of lugs is aligned with the second upper set of lugs to define an upper rail and the first lower set of lugs is aligned with the second lower set of lugs to define a lower rail.

13 . The rail system of claim 11 wherein the top side piece has a third set of lugs that define a rearward extension of the upper rail.

14 . The rail system of claim 5 wherein the first side piece comprises;

a first elongate slot defining a first rail;

a first upper partial slot; and

a first lower partial slot.

15 . The rail system of claim 14 wherein the second side piece comprises;

a second elongate slot defining a second rail;

a second upper partial slot; and

a second lower partial slot.

16 . The rail system of claim 15 wherein, when the first and second side pieces are connected together, the first upper partial slot is aligned with the second upper partial slot to define an upper rail and the first lower partial is aligned with the second lower partial to define a lower rail.

17 . The rail system of claim 16 wherein the top side piece has a third elongate slot that defines a rearward extension of the upper rail.

18 . A revolver rail system, comprising:

a first piece defining a first rail, a first partial rail, and a second partial rail; and

a second piece defining a second rail, a third partial rail, and a fourth partial rail, the first and second pieces being connectable to align the first partial rail with the third partial rail to form a third rail and to align the second partial rail with the fourth partial rail to define a fourth rail.

19 . A rail system, comprising:

a first side piece having a forward end, a rearward end and an inner surface;

a second side piece having a forward end, a rearward end and an inner surface, the inner surfaces of the first and second side pieces being configured to, when the first side piece and the second side piece are connected together, form an elongate barrel receiving bore sized to frictionally engage a revolver barrel and provide a first rail coupled to the revolver;

a top side piece configured to be mounted to a top side of the revolver barrel, wherein the top side piece comprises a depending tab configure to, when the top side piece is coupled to the revolver barrel, frictionally engage a shoulder at a rearward end of the revolver barrel.

20 . A rail system, comprising:

a first side piece having a forward end, a rearward end and an inner surface, the first side piece comprising a first rail, a first upper set of lugs defining a first upper set of grooves, and a first lower set of legs defining a first lower set of grooves;

a second side piece having a forward end, a rearward end and an inner surface, the inner surfaces of the first and second side pieces being configured to, when the first side piece and the second side piece are connected together, form an elongate barrel receiving bore sized to frictionally engage a revolver barrel and provide a first rail coupled to the revolver; and

a top side piece configured to be mounted to a top side of the revolver barrel.

21 . A rail system, comprising:

a first side piece having a forward end, a rearward end, and an inner surface, a first elongate slot defining a first rail, a first upper partial slot, and a first lower partial slot;

a second side piece having a forward end, a rearward end and an inner surface, the inner surfaces of the first and second side pieces being configured to, when the first side piece and the second side piece are connected together, form an elongate barrel receiving bore sized to frictionally engage a revolver barrel and provide a first rail coupled to the revolver; and

a top side piece configured to be mounted to a top side of the revolver barrel.