Dave Manson Precision Reamers

When I saw Dave Mason Precision Reamers on my list of vendors to visit, I was like “Wha?!?”. Not being a gunsmith, I wasn’t really sure how to approach them. I’ve got some basic tools to do maintenance on my firearms, but no real experience at this level.

What ended up happening was a pleasant conversation with Dave Manson himself. He took a decent amount of time describing his business and the tools he sells and how they are used. Suffice to say there was a bit more material than I could reasonably absorb. One of the biggest services he offers is providing information to the gunsmithing community, operating as a clearinghouse for info and maintaining a knowledge base of things like tooling specs for a variety of processes.


Tool for holding 1911 in a vise and allowing rotation of frame


A few tools he suggested highlighting were his Muzzle Crown Refacing Tool Kit and Military Rifle Muzzle Re-Crowning Tool Kit. The first is a professional kit that allows for the cutting or re-cutting of a precision crown without removing the barreled action from the stock, and can be completed in five minutes by hand. The Military Rifle kit is a more of a basic kit and only includes one pilot assembly (you specify the caliber).

Another interesting product they have (though not a tool) is a set of Safety Barrels for Glocks. The aluminum barrels, in a number of sizes, replace the stock barrel and are red anodized. You can cycle and dry fire the weapon normally.

I assume that a number of you readers have experience with gunsmithing. Have you used their tools?

Tom is a former Navy Corpsman that spent some time bumbling around the deserts of Iraq with a Marine Recon unit, kicking in tent flaps and harassing sheep. Prior to that he was a paramedic somewhere in DFW, also doing some Executive Protection work between shifts. Now that those exciting days are behind him, he has embraced his inner “Warrior Hippie” and assaults 14er in his sandals and beard, or engages in rucking adventure challenges while consuming craft beer. To fund these adventures, he writes medical software and builds websites and mobile apps. His latest venture is as one of the founders of IronSights.com; a search engine for all things gun related. He hopes that his posts will help you find solid gear that will survive whatever you can throw at it–he is known (in certain circles) for his curse…ahem, ability…to find the breaking point of anything.


  • John Yossarian

    Yes – I have the Muzzle Crown Refacing Tool Kit and it is awesome. With this tool-set, I can put an 11 degree target crown on any .20 or .30 caliber rifle in just about 20 minutes, including deburring, polishing and re-bluing. I’ve used it on enough rifles now that it’s paid for itself in what would have been gunsmithing fees.

    • Doc Rader

      You mean rifles aren’t disposable (like printer cartridges)? 🙂

      That is pretty interesting to hear. I’d always assumed that gunsmithing was a super complex thing, but like most everything, it is all about having the right tools… 🙂

      • Giolli Joker

        …and knowledge, and skills… I suppose.

  • B

    Dave Manson is pretty much THE go to for any gauges or tools for guns. I have several of his Headspace gauges and a reamer. It’s top notch stuff.

    • Doc Rader

      Cool! Glad to hear that he has a good rep.

  • Joe

    Because when you’re getting reamed, you want it to be precise.

    • Tassiebush

      No wrong convention Joe! That’d be relevant to the other big convention held at Las Vegas at that time!

  • Doc Rader

    Yeah, I got that from talking to him. Nicest guy I’d met at that point. I’d guess he is one of those people that has forgotten more things than most people will learn regarding his field.

    But super approachable and friendly.

  • Evan

    When i attended college for gunsmithing, the school shop had many of dave manson’s tools and much of his How-To guides and such. I learned alot from reading and working woth those tools. Like how quality may be expensive, but is usually worth every penny

    • Jim_Macklin

      Quality tools and tooling are inexpensive when compared to the cost of replacing a gun ruined by cheaply made tools.