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New! "Top Gun" Spring Kits for all Ruger's... Colt-style half-cock hammers for Ruger Vaquero's.... New! "Top Gun" Spring Kits for all Ruger's... Colt-style half-cock hammers for Ruger Vaquero's....


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New! If a full action job is not in your budget right now , you can still enjoy the benefits of custom-designed springs for your Ruger Vaquero, Ruger 3 screw and Ruger Single Six 32. $35

Custom Relieved, Polished and Jeweled Hammers and Triggers on rifles, pistols and 1897's for $40 a gun.

Modern day efficiency on classic cowboy firearms ...

Duece Stevens and K J Stevens - 2008 SASS MI State Champions.  Deuce uses Cowboy Gunworks pistols.

Welcome to the website of Jim McMahon aka Jimmy Spurs. I am a full-time gunsmith that specializes in working on Cowboy Action Shooting firearms. I can help make your lever action rifles (Henry 1860, Winchester 1866, Winchester 1873, Winchester 1892, Marlin 1894), revolvers (Ruger Vaquero, Ruger New Vaquero, Ruger Blackhawk, (New! Colt-style half-cock hammers for Ruger Vaquero's and "Top Gun" Spring Kits for all Rugers.) Colt SAA, Colt clones), shotguns (Winchester 1897 or double barrels), derringers and single shot rifles smoother to operate so you can concentrate on shooting.

I work on reproductions and originals. All my work is 100% satisfaction guaranteed. I do some general firearm repair. Machine shop services such as milling, lathe work, welding, etc. are available and done on the premises.

You can also buy your firearms through me as I am a licensed FFL Dealer. Instead of buying your Ruger New Vaquero, Uberti, Taylor's & Co. Cimarron, EMF, etc. firearm somewhere else, let me know what you want and I will get it for you and work on it too! I'm going to be stocking some IAC Winchester 1897 shotguns that I have made into top of the line "race guns" soon. Call me for availability and prices.

While somewhat new to Cowboy Action Shooting, I am no stranger to the workshop. I have been building and racing snowmobiles for a number of years and have many championships and several world records with our hand-built sleds. I've made pretty good progress in my three years of CAS shooting recently winning TOP GUN at the 2008 SASS MA/CT/RI State Championships, the 2008 SASS NH State Championship to add to the the 2007 SASS NH State Championship and 2006 SASS NH State Championship, the 2005 SASS New Hampshire State Black Powder Modern Championship and Top Gun at the 2006 SASS NJ/DE State Championships.

I want to thank Gordon Levitt (Single Action), Bill English (Happy Trails), Lee Shaver - Gunsmith, Ron Powers of Powers Custom, Jim Lincoln of the Cowboy & Indian Store, LLC and others for sharing their knowledge about CAS firearms with me.

Some of my customers include top North East Cowboy Action Shooting competitors like:
  • Deuce Stevens (2008 Traditional National Champion and 2nd overall at 2008 Winter Range, 2006 Midwest Regional Champion, and member of the Walnut Hill Gang)
  • Cartwheel (2007 SASS New England Regional Men's Champion, 2006 SASS NY State Champion, and member of the Walnut Hill Gang)
  • Dastardly Dirty Dan (2005 & 2006 SASS VT State Men's Champion)
  • Jake Mountain (2006 SASS New England Regional Men's Champion, 2005 SASS NH State Champion)
  • Smokey Sue (2005 & 2006 SASS ME State Men's Champion)
  • Kidd Thunder (2007 SASS New England Regional Frontiersman Champion, 2005 SASS MA State Men's Champion)
  • Brett Cantrell (2005, 2006, 2007 & 2008 SASS RI State Men's Champion)
  • Wild Sage (2005, 2006, 2007 & 2008 SASS RI State Ladies Champion)
  • Appaloosa Amy (2006, 2007 & 2008 SASS CT State Ladies Champion, and member of the Walnut Hill Gang)
  • Quaker Hill Bill (2006 & 2008 SASS CT State Men's Champion and member of the Walnut Hill Gang)
  • Birdie Cage (2006 & 2008 SASS MA State Ladies Champion and member of the Walnut Hill Gang)
  • Three Barrel Chris (2008 SASS VT State Ladies Champion)
  • Avocatessa (2007 SASS MA State Ladies Champion)
  • James Samuel Pike (2007 SASS CT Men's Champion and Overall Men's Champion at the 2008 SASS NH/VT State Championships)
  • Island Pond Paul (2008 & 2007 SASS VT State Men's Champion and Walnut Hill Gang member)
  • Quickdraw Pinkerton 2006 SASS DE State Ladies Champion and Walnut Hill Gang member)
  • Pokerface McGee (2006 SASS DE State Men's Champion and Walnut Hill Gang member)
  • Dead Head (2006 & 2007 SASS New England Regional FC Gunfighter Champion, 2006, 2007 & 2008 SASS NH/VT/MA/CT/RI FC Gunfighter Champion, and member of the Walnut Hill Gang)
  • Ivory Thunder (2008 SASS MA/CT/RI/NH/VT Gunfighter Champion and Walnut Hill Gang member)
  • Midnight Angel (2008 SASS NY Top 16 Team Shootout participant and Walnut Hill Gang member.)
  • Peddler Jack (2005 SASS NY State Senior Duelist Champion and Walnut Hill Gang member)
  • Splinter Jack (2007 SASS New England Regional Men's Top Gun Shoot-off Champion, Top Gun at 2007 SASS NY State Championships, and member of the Walnut Hill Gang)
  • Paden Lead (2004 SASS ME State Modern Champion)
  • Ellie Mae Mountain (2005 & 2006 ME State Senior Ladies Champion, 2005 & 2006 NH State Black Powder Senior Ladies Champion)
  • Saguaro Jack (Almost always shoots 'clean' from Salem, NH)
  • Fly Rod (Famous 49'er shooter and fisherman. Walnut Hill Gang member.)
  • Pittsburg Mac (2006 Maine State Senior Champion, 1st Place Senior - 2006 Maine State Championship Super Stage, 1st Place Derringer - 2007 NH/VT State Championship, 1st Place Derringer - 2007 NE Regional Championship, Top Massachusetts Senior 2007 NE Regional Championship. Walnut Hill Gang member.)
  • Grazer (2007 SASS New England Regional Duelist Champion, Top Ten Duelist buckle at 2007 & 2008 Winter Range, 2008 SASS MA/CT/RI Men's State Champion, 2007 SASS MA/CT/ RI/NH/VT/NY Duelist Champion and member of the Walnut Hill Gang)
  • Hawley McCoy (Top Ten Ladies Duelist buckle at 2007 & 2008 Winter Range, 2007 SASS NY & ME Ladies Duelist Champion and member of the Walnut Hill Gang)
  • Cyrus Cy Klopps from Massachusetts.
  • Calico Jan
  • (2007 SASS New England Regional Senior Ladies Champion, 2008 SASS MA/CT/RI/NH/VT Ladies Senior Champion from Connecticut and Walnut Hill Gang member.)

  • Pennsyltucky Slim
  • (Consort of Calico Jan, Classic Cowboy shooter, famous campfire singer and Walnut Hill Gang member.)

  • Yosemite Kid from Massachusetts.
  • Squintin Annie
  • Ike Shotgun McCoy (Great shooter from Vermont.)
  • Bear Lee Tallable (2007 SASS New England Regional Senior Duelist Champion, Top Ten buckle at 2007 Winter Range and all-around good guy from Vermont.)
  • B. P. Gunns
  • (Frontier Cartridge Duelist from Vermont)

  • Punxsutawney Phil
  • (Top 49'er shooter and Chuckwagon Chef of the Walnut Hill Gang)

  • Wylie Harp (Frontier Cartridge Gunfighter and Walnut Hill Gang member.)
  • Piney Woods (Top 49'er shooter)
  • Broncho Billy (Top 20 in first shoot and didn't even hurt anyone. The newest member of the Walnut Hill Gang.)

Contact me to arrange pickup, shipping and delivery. Do not ship anything without arranging it with me first! I shoot Cowboy Action Shooting, race snowmobiles and occasionally do other things so I am not necessarily around to accept your firearm shipment without prior arrangement.

You can get Federal primers, Moulton Lead bullets, stainless steel tube springs, Marble sights, and the Slip-On Butt Pad
You can also get Federal primers, Moulton Lead bullets, stainless steel tube springs, Marble sights, and the Slip-On Butt Pad from me.

New! CNC-machined billet Stainless Steel magazine tube followers for 1873/1866 Winchester rifles. They help prevent rust buildup in the magazine tube for only $25 each and you really should get a stainless steel magazine spring at the same time ($25 each).

New! Colt-style half-cock hammers for Ruger Vaquero's and Ruger Single Six revolvers. Ever short-stroked the hammer and had to go all the way around to find the live round? Click, click, click, click. How many rank points do you rack up doing that? It isn't a matter of "if" you will need it, but rather "when" you will need it. Avoid it with the Colt-style half-cock hammer.

New! "Top Gun" Spring Kits for all Ruger's. Take advantage of custom-designed springs by Jimmy Spurs. These reliable springs are designed to help you enjoy a smoother and easier cocking pistol with a lighter, more consistent trigger pull.

Work area showing some of the guns they work on or have for sale.
Work area showing some of the guns they work on or have for sale.

Cheyenne the Shop Cat has joined the Walnut Hill Gang.
'Cheyenne the Shop Cat' has joined the Walnut Hill Gang. Santa dropped her off on Christmas. She is a 10 week old 3 pound Maine Coon Cat on her way to about 15 lbs. Her ears are already 2.5" high and she loves to look at her pics on line!

Screwknives and sheaths
Cowboy Gunworks is your Northeast Distributor for Redwing Knifes. Hand made in the USA, these knifes not only look good next to your holster but will help save the day when you nead a screwdriverr or knife in a hurry! They were originally designed to help clear a jam on a '73 Winchester in the event you get a double load or the extractor can't get a stuck round out of the chamber. These little knifes are a must for many Cowboy Action Shooting problems. Having a set of screwdrivers back in your cart doesn't really help you in the middle of your stage. You need it where you can reach in an instant. Only $99 with a plain sheath.

Various plain and beaded sheaths for RedWing Knives.
For those of you that would like to add a little color to your outfit, try the handmade beaded leather sheaths for only $49.00. Custom orders available !


Map to Cowboy Gunworks


AnimationTry your reaction times with this neat game: Click here.


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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