3D Print Yourself a SIG P250 Frame

Finally, a printable gun that is neither an AR-15 nor a disaster waiting to happen. PrintedFirearm reports

This a 3D printable replica of the SIG P250 Polymer frame. Note this is not considered a firearm or gun. Unlike other polymer handguns, the serialized portion of the gun is a different part, allowing you to print this part legally (USA). Please adhere to your countries law prior to printing one.

The gun in the photo above was printed on a XYZ Da Vinci 1.0 3D Printer, a very affordable printer that sells for $499 on  Amazon.

The purple color is optional.

Thanks to Jay for the tip.

Steve Johnson

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


  • noguncontrol

    Purple? it looks blue. And thank God for modular firearms like the sig p250, i hope they make 3d printed frames for the Beretta Nano too.

    • M.M.D.C.

      It looks white to me.

      • nadnerbus

        It’s clearly gold

        • Geoffry K


          • An Interested Person

            There`s something in the picture?

          • Andrew Hobby

            Go Banana!

    • Giolli Joker

      The new Beretta APX has the same modular approach as well.

  • dan citizen

    “the serialized portion of the gun is a different part, allowing you to print this part legally”

    Am I missing something? I have made plenty of receivers legally.

    • xyrth

      No, you’re not. That statement is misleading. If you print 100% of the firearm, or just the serialized part, like many people do, it’s 100% legal.

    • RocketScientist

      My thoughts as well. It is and always has been legal to manufacture your own non-NFA firearm with no paperwork/permission (at least on the Federal level… I have no idea if individual states have laws forbidding this). Its a common misconception among non-gunners, and many less-informed gun folk. I expected more from this blog though.

      • xyrth

        I know they just quoted the source, but I agree — they should have corrected them. Also — calling the Liberator a disaster waiting to happen isn’t quite correct. Are we seeing plastic phobia?

      • Paul

        In New Jersey you need a manufacturers license to complete an 80% AR lower…the wait time is almost 3 years…even someone with an FFL cannot put the lower parts kit in a completed lower with a serial number the state even considers that manufacturing…but YOU can buy the lower with a serial number after a firearms purchasers ID card and a background check and the FFL can put the lower parts in it for you as gunsmithing…New Jersey sucks….so I would say the state would hit you with manufacturing without a license if you printed one of these.

        • DaveGinOly

          Probably not, because this “receiver” is technically not the “gun” (it is not the serial numbered part in regular manufacture). As “Jumplf” mentions below, the “gun” of this SIG model is the fire control group that drops into the frame – that group is the serialized part. In the situations you’re describing, the receiver/AR lower is the gun (the serial-numbered part in regular manufacture), and that makes a world of difference.

    • An Interested Person

      Correct, but they must be serialized to comply with federal law. The ATF requires it to be “hard to remove” or something to that affect, which is difficult to comply with when 3d printing the parts. I`m not sure how it was done on the 3d printed AR lowers floating around.

      • notinfringed

        They only have to be serialized if they are being made by a licensed manufacturer. Private citizens have no requirement to serialize receivers that they create, but cannot build receivers with the intent to sale.

        If a private citizen does end up selling a receiver that they created, they have to serialize it at that point and make the transfer through an FFL.

        • Paul Hurst

          Under [lack of] Federal Law, Title I guns made by non-licensees do not need SNs, even if they get sold, nor do they have to be sold to FFLs.

    • M

      I think they meant to say that the Democrats would not cry “Ghost gun!!” when people make this since it’s not the serialized part

      • dan citizen

        From now on, every gun I own is going to be called a ghost gun,

        If I buy a chipmunk .22 at wally world… I’m calling the damned thing a ghost gun.

        • Greg Thompson

          Kevin DeLeon or whatever his name is has no idea the monster he created with that name LOL – this is great

  • Jon

    Spend $500 to make a $35 part? What’s the catch?

    In all honesty, the main thing lacking from the p250/320 grips is aggressive texturing. It will be cool to print print a custom stipple pattern. However, if the printer can’t make a decent texture I dont see any advantage over a Sig grip+ Weller Soldering iron.

    • xyrth

      The $500 is the cost for the printer, not the filament.

    • Giolli Joker

      Beside the fact mentioned by xyrth, with this technology you can print the frame that best fits your needs/tastes… or use it to build a mold to cast your own Al alloy frame… if you’re really hardcore.

  • mig1nc

    I’ve been hoping this would happen, actually hoping that Sig would release CAD files for it. I would love it if somebody would make a P320/P250 frame that had a PPQ grip shape. Hell, I wonder if somebody could even do it with a paddle mag release 🙂

  • jeff k

    is it functional?

    • dan citizen

      for the first shot….

      (totally kidding, I have no idea)

    • JumpIf NotZero

      There should be little stress on the polymer because all the slide forces are on the fire control. All the polymer is doing is holding that in place. So the channel and pin to hold that in place will eventually fail with normal ABS plastic, but it should work for a little while.

  • Dale

    This is very cool. Now I wonder how close to a 1911 I could make it with a printed frame…

  • Lance

    Rather have a Glock slide printed. Have a tough handgun privately made.

  • roguetechie

    Ok the article is not wrong nor were they mistaken when bringing up legality.

    It’s already illegal to build and or market a fully nonmetallic firearm thanks to the last plastic gun panic… FUN FACT: This is the reason there is the often mocked scene in die hard 2 about the glock 7 “undetectable pistol”

    So at some point our oh so brilliant law makers put in a clause in one bill or another forbidding the construction, possession, purchase, or etc of “undetectable” firearms long before the reprap revolution.

    Matter of fact the more educated and gun savvy experimenters with the early single shot 3d printed pistols usually mentioned this at some point in their respective build blogs etc….

    When it is mentioned in these blogs you see many of the experimenters actually embed a steel block and explain the specific requirements for size, volume, weight or whatever metrics are specified in the law covering this. (Remember that federal rulers and scales tend to vary from civilian measurement tools so always ROUND UP when calculating barrel length overall length and any other minimum standards….)

    Because an extra inch of barrel is ALWAYS preferable to 12 inches of BUBBA

    It’s a very real concern especially if you are doing DIY pistol or shotgun projects… (depending on your jurisdiction pistols shotguns or pistols AND shotguns that even get CLOSE to the edge of legality in ANY way is an express line pass to federal prison!)

    Maybe Nathaniel or another TFB writer can help us find the specifics of the law.

    • BryanS

      If it was the 320, it would be a no brainer. Trigger pack is serialized there.

      • SigFanBoy

        Same story -and for longer- with the P250. This grip frame is interchangeable between the two.

        • BryanS

          Well, in the ATF’s eyes, its no different than printing up a set of wrap around 1911 grips.

  • JumpIf NotZero

    Sweet, now design it to take Glock/Magpul mags, and do a high quality print with glass filled nylon. Someone will exploit right there and do very well with it.

    The only questions now are how long for Glock or M&P to go modular? In the meantime which becomes the more popular gun, the P320 or the APX? The APX checks off nearly every box anyone could want for features but I’m cautious that their recoil guide boss isn’t large enough to allow for modularity of mixing slide and frame lengths like the P320 is, a HUGE mistake on Beretta’s part.

  • JumpIf NotZero

    The interesting off-shoot of this article in regards to the P320… Is the inevitable emergence of 80% P320/250 or APX “receivers”.

    They’re stamped sheet metal now, so how long could it be before someone makes an 80% milled steel/titanium version that just needs the pin holes drilled? Pretty interesting really because I feel like that could generate issues faster than AR lowers – Ghost Handguns.

  • evancli

    I doubt this is printed on a XYZ Da Vinci 1.0. Even after careful tuning and adjustment, this particular printer just isn’t capable of it. Also in the photos on the source site, it’s clearly being printed on a Ultimaker 2, which a nearly 5 times the cost of a Da Vinci.

  • roguetechie

    That was actually my point have blue. It was an often discussed topic throughout the whole time period. I’m not sure where I read about it (possibly here on TFB) But there was one guy behind a string of failed companies promising a fully metal free semiautomatic pistol throughout the entire decade. And Congress / Hollywood being the way they are hyped the crap out of this “emerging threat” thus Die Hard 2 has the glock-7….

  • Ross

    The 250 and 320 share a frame. The 320 is a striker gun, the 250 is a DAO hammer fired gun.