Printable firearm pioneer and activist Cody Wilson proved recently that it was possible to produce a gun with just a 3D printer and some ABS plastic. The announcement further highlighted the potential of 3D printing technology, and although Wilson later removed the files for making the gun at the Department of State’s request, others are pushing forward with their own advancements.

One such designer decided to use available technology to mix and match firearms. Only known as “Shanrilivan,” the creator has fused parts of a FN P90 with an AR-15. The combination comes into two flavors: a single piece P90 stock/AR-15 lower receiver dubbed the “Charon” and a stock that is meant to be integrated with a printed AR-15 lower receiver named the “WarFairy P-15.”

According to, the P-15 borrows from the structure of a P90 to reinforce the buffer extension of printed lower receivers. Wilson had previously designed two AR-15 lower receivers that could be produced with a 3D printer, one that was essentially an improvement over the other. The P-15 stock was created in part to complement the lower receiver’s strengths and double-up on weak points. It can also be printed on lower-cost printers as it was meant to be produced in several parts that will have to be assembled.

While the contraption may look strange, those with 3D printers are already flocking to download the new designs. Files for both the Charon single-piece stock and lower and P-15 are available for download, some of which can be found on

The Charon can use a variety of 3D-printed fore end pieces.
The Charon can use a variety of 3D-printed fore end pieces.

Following along the same activist lines of Wilson and other 3D printing trailblazers, the creator of the Charon states in the readme included with the printing files:

License: I reserve no rights. Pirate this Gun. Please change name of independant [sic] projects to prevent confusion and avoid incompatibilities.

Another recent innovation is a trio of 3D-printed 12 gauge shotgun slugs demonstrated by Taofledermaus on YouTube and made by fellow shooting enthusiast ArtisanTony. One of the slugs weighed roughly four-tenths of an ounce when packed with lead shot and sized to fit a standard shotgun shell. The demonstrators reckoned it might be the first printed bullet to be test fired, which caused some skepticism regarding accuracy and power. In any case, it was loaded into a shotgun and fired towards an old dartboard.

You can view the demonstration below:

Charon images are freely available renders accompanying 3D printer files

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8 thoughts on “3D-printed Hybrid AR-15/FN P90 Lower and 12 Gauge Slugs Make Web Debut

    1. If you paint it with UV resistant paint, than you should be fine. Lots of guns already have plastic in them.

    2. D.m. Pyeatt,
      You raise a valid concern over the degradation of plastic when exposed to UV, but for you to see any significant structural failure due to UV damage, you’d have to leave it in direct sunlight for right around a year.

      The DefDist V5 Lower Receiver on which my design is based lasted for 660 rounds before the stock tower cracked at top dead center. This was due to vibration and the torquing stresses applied at the threads of the buffer tube. This receiver addresses the issues with the old lower, and as long as it is carefully printed and prepared, should last well past 5000 rounds, with my ultimate goal being 10,000 rounds and beyond.

      I understand that printed firearms such as this aren’t for everyone, but for the small segment of the population for whom 3D printing and firearms are both passions, this represents a large step forward.

      Thank you for voicing your concerns, and I will confer with the community’s materials experts to see if a solution can be found.

  1. So 1 shotgun projectile (not shell) takes an hour on a 3d printer to make. I would guess that’s at least $50 or $100 depending on material costs, machine maintenance, operator pay, etc.
    Once you print the bullet, you still need a shell case, a primer, wad, and gunpowder and a reloading press as well as weight measures and other reloading tools.

    By the time you are done, you will have a $100 single shot. Or you could go to Wal-Mart and buy them for about $1.00 each for slugs or $0.30 each for target shotgun loads.

    This is a NOVELTY and a distraction people aimed at scaring the uninformed into banning larger groups of items.
    “ban non-metal guns” public thinks “3D printed guns” but the ban will include popular police issue models from Glock, HK, Sig, Springfield, Smith and Wesson, and others.
    “ban non-metal magazines” again, many manufacturers supply them with factory firearms already.
    “ban non-metal projectiles” most shotgun shell cases are plastic for both slugs and buckshot as well as bird shot.

    Similar to the media and politician trying to confuse the public about what a machine gun really is vs. a semi-auto rifle. Completely different rifles, but the media has 90% of the non-gun owning public completely confused into banning anything that looks or sounds scary.

    Pay no attention to the man behind the curtain…

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