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New! Colt-style half-cock hammers for Ruger Vaquero's.... Colt-style half-cock hammers for Ruger Vaquero's....


What's New?

Gun Work

New Firearms

Rifle Upgrades

CAS Support

Shooting School




Walnut Hill Gang

Little Ruby

Racing & Stuff


Kaylee, the new Shop Cat

Cody, the newest Shop Cat

My Cheyenne


Rifle Upgrades




Even if your rifle has been slicked up, do you ever notice a slight “hitch” in the action?

Well Cowboy Gunworks has the answer why and the solution.


The Uberti rifles are made with the same sized magazine tube for both the .45 Colt and the .38 Special/.357 Magnum.  The result is that when the .45 Colts are loaded into the magazine they line up pretty well.


However in your .38 Special rifle they look like this:

Wedging and hang-ups can occur and that results in the hitch in the action.


With the Cowboy Gunworks Smooth Cycle Sleeve Kit your .38 Special cartridges line up like this:

The Cowboy Gunworks Smooth Cycle Sleeve Kit contains a precision aluminum sleeve tube, a stainless steel magazine spring, and a precision stainless steel follower.


The Kit is an easy drop-in installation.  Simply remove the Magazine End Cap.  Remove the old spring and follower.  Drop in the Smooth Cycle Sleeve aluminum tube then drop in the stainless follower followed by the new stainless magazine spring and re-install the End Cap.

How to measure for the tube ...
The photo demonstrates the proper way to measure the barrel length on your Uberti Rifle for the 'Smooth Cycle Sleeve'. Drop the tape measure on top front of the carrier as shown and measure to the end of the barrel.


Price shipped  -----------------------------------------------------$79.00

(Note! Both of these drawings are exactly to scale.)

To order your Smooth Cycle Sleeve today give the shop a call or e-mail us with your barrel length and all your contact info. Credit Cards Accepted.


Stainless Steel Magazine Tube Spring for all 1873, Marlin, and 1892 rifles. $25.00 each

Stainless Steel Magazine Tube Follower for all 1873, Marlin, and 1892 rifles. $25.00 each

Stainless steel tube springs and followers
Both help reduce rusting inside the magazine tube.

Loading Gate Assist Tool
Loading assist tool
Tired of getting your finger caught or pinched in tight loading gates? Use these period correct deer horn Loading Gate Assistors to help you push the last of your cartridges through the loading gate.

Brass Bead Front Sights $25.00 each 3/32 Brass Bead Front Sight.
Helps shooter maintain focus on the front sight.

Magazine Tube Plug .45LC, .44/40, .357mag (1866, 73 rifles) black anodized billet aluminum magazine tube. Each comes with its own Allen key for easy removal and cleaning of the magazine tube area. A great value at $19.99 each.

Map to Cowboy Gunworks

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Cowboy Gun Works
Jim McMahon aka 'Jimmy Spurs'
30 Walnut Hill Road
Derry, NH 03038
Shop Phone: 603-425-1189
Cell Phone: 603-490-0312
Email: cowboygunworks@aol.com

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