GHOSTGUNS.COM – 80% Fire Control Group For The P320

Innovation moves fast these days. As the popularity of Sig Sauer’s new P320 spikes on news of it being selected as the modular pistol contract winner for the U.S. Army (and most likely the other branches) spreads, civilian intrests have followed in sync. Of course, the primary feature of the the P320 is the fact that a small group of metal parts, the Fire Control Group (FCG) is the serialized firearm as opposed to the polymer frame like a Glock or S&W M&P. The benefit is that frames are interchangeable and not controlled by American gun regulations. is in the process of developing an 80% FCG that will allow buyers to build their own P320 compatible clones by drilling/milling a few pin holes and trigger sections. The entire process should be achievable with someone with average skills and tools.

Although I have yet to build any 80% products into firearms, I love this type innovation. I may have to give it a shot upon release. Sign up on the Ghost Guns website for updates.

P320 Compatible 80% Percent Frame Insert from Ghost Guns. A sneak peak at our universal pistol insert that’s compatible with the SIG P320 firearms platform. Making this the much awaited 80% P320 compatible build platform.

P320 80% Fire Control Group

Fire Control Group


A Ghost Gun is a weapon manufactured at home from materials not considered firearms by our Government. It starts off with with a component that is pulled out of the manufacturing process before it’s 100% completed. In the case of an AR15 Rifle the component is called a lower receiver – and unfinished it’s commonly referred to as an 80% lower receiver.

Despite popular belief that the Federal Government can restrict all gun ownership, unconstitutional laws like the National Firearms Act of 1934 and the Gun Control Act of 1968 can only regulate the transfer and sale of weapons. And so, making a weapon on your own, without the intention of transferring it or selling it is not prohibited by Federal agencies such as the ATF, because such laws would be a direct assault on our right to bear arms as Free Americans under the constitution.

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  • nova3930

    Figured it was only a matter of time before this happened.

  • JumpIf NotZero

    Next Up: P320 FCG based PCC

    • Joe

      From your keyboard/touchscreen to SIG’s ears!
      We all don’t need/can’t afford the MPX, but a SIG version of the Marlin Camp Carbine would be outstanding!
      If only SIG could produce such a beast under $700….

      • Gary Kirk

        SIG, carbine and “under $700”.. Can’t be used in that order, surprised your spellchecker didn’t correct that for you..

        • Cal S.

          I died.

    • Vhyrus

      Stolen, patented, and currently in pre production 3…2…1…

  • KestrelBike

    Good gravy this will be amazing if they can keep it cheapish/reasonable…. $200?

    • Tim

      …..all ‘kinds’ of possibilities now emerge from the ether……..

  • Kelly Jackson

    No matter how you cut it this is going to cost more than buying a new P320 anyone that’s priced Sig parts knows that. But for someone who wants an off the grid weapon there’s obviously an appeal for this sort of thing.

    I agree that all “good shoots” should follow the letter of the law, but we know in todays politically charged climate and digital lynchmobs there’s going to be some legitmate self defense shootings where you’d be better of just walking away with no connection to the shooting.

    • cwp

      This would also be ideal for someone who lives in a state where the P320 is only available with a manual safety (e.g., Massachusetts) but who prefers the standard model.

  • Thinker-1

    Well, the feds may not prohibit it, but some states and localities do.

  • Zundfolge

    Does SIG sell “lower parts kits” for the P320?

    • Edeco

      I was just about to post, I wonder how much beyond the “caliber exchange kit” is needed. For actually changing calibers I think the cost of them is nuts, but for making a new custom…

  • Holdfast_II

    That’s a particularly good platform, especially since a lot of folks who are into the 320 will have spare parts lying around anyway.

  • Reazione Catena

    Wonder if it can be used in a P250 using hammer fired parts……

  • Raptor Fred
  • Audie Bakerson

    Huh, I was expecting we’d have to wait 16 or so years, for patent expiration, before this kind of thing happened.

  • James

    I wonder if it will malfunction just like the real 320

  • USMC03Vet

    This is awesome.

  • Harry’s Holsters

    I’m interested to see how this works. Considering the slide rails are built in I wonder how much work they put into choosing the right material. If it matches the Sig then I’m in for 1.

  • Phillip Shen

    Alright, -nearly- California ready. Now all someone needs to do is create a bolt action adapter for the slide.

    Or maybe I should just move out of California =(

    • uncle bobedy

      Stuck here too, your sentiment made me crack up laughing, thanks.

    • Ryan Chang

      Yes sir, it was a bolt action but I threw the custom parts away. ¯_(ツ)_/¯ – Young person who never had a chance to use any loophole.

    • Max Weber

      Looks like the Inlander Arms kit will work.

  • Treyh007

    I guess this is cool if your into that sort of thing. The 320 is already at a reasonable price (they have gone up a lil since M17) and I have a feeling this kit along with all the other parts will cost more than just buying one.

    • Havok

      If they have it’s only because your dealer is sticking it to you based on the MHS program. MAP on a base P320 is $499 and that hasn’t changed.

  • nanoc

    This is going to sell well in California with current Sig 320’s going for $1000+.

    • Marcus D.

      See Shen’s comment above….only if it comes in a bolt action, single shot configuration.

      But there is hope. The Senate just passed a single-payer health care bill, even though the estimated cost is larger than the annual state budget and they have no idea how to pay for it. The bill will likely pass the Assembly, and if Brown signs it (extremely unlikely), the State will be bankrupt within a year, with no money to pay for police, courts, or prisons. At which point it won’t make any difference what you build in your workshop because there will be no one to arrest, prosecute, or jail you…
      Just sayin.’

  • thedonn007

    I need to start stocking P320 parts now

  • Fox Hunter

    Wow, it looks like the Sig P250 FCG, but even simpler looking. Now all you need is a roni with sig brace that can fit the polymer frame and you can have a sig braced pistol with all the rails you could want, after that you’ll need 30 round magazines for 9mm .40 cal and 45 acp.

  • Blackhawk

    I’m surprised that they went with drilling holes to “manufacture” it,as opposed to the G3 style kits to fold your own. Seems like a few simple folds would be much easier for someone with only hand tools and a bending jig.