BOTW: JG's Franken Pistol

Tom R
by Tom R

The 21st Installment of Build of the Week was contributed by JG. I believe this is the first build that has been submitted where one of the components was actually 3-D printed by the builder. While everything else was off the shelf as JG mentions it is not bad looking. I think it has that “I’m-wearing-leather-straps-with-a-mohawk-and-a-dog-collar-while-chasing-after-water-thieves-in-my-spiked-and-armor-plated-charger-across-the-desert” look. JG should build a second one to wield them akimbo. And I disagree about the pistol grip–I think it complements the whole piece.

Keep the submissions coming in! We are publishing them in the order in which they were received (with the exception of a single person submitting back to back–those will get spread out).

You can submit your own build at

This build is the result of a late night misguided inspiration to make a “franken gun” with parts I had laying around. The only thing I needed to order was the CMMG .22 LR drop-in conversion kit. I found a 3d printer file for the buffer tube plug and printed that on my 3D printer. Everything else was on the shelf. The upper/barrel is a 10.5″ HBAR AR barrel in .223 Wylde. The lower is an Anderson Mfg. AM-15. The pistol grip is a gun show purchase regret. The optic is a cheap red dot. The build functions very well and being so heavy has near zero felt recoil and is surprising fun to shoot. Why? Why not?!

Comment below to ask JG questions about his build.

TFB’s BOTW Prize Packs are provided by STRIKE INDUSTRIES

Tom R
Tom R

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 teaches wilderness medicine and runs an on-demand medical staffing business. 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, find the breaking point of anything.You can reach him at tom.r AT or at

More by Tom R

Join the conversation
3 of 10 comments
  • Edeco Edeco on Dec 15, 2018

    It’s rare to like a hot rod as much as the person who built it, always something one would do differently. It’s great that they got some 3D in there though. That makes it meaner!

  • DD colt shooter DD colt shooter on Dec 16, 2018

    what kind of forend is that i kinda like it ?

    • Spike1984 Spike1984 on Dec 19, 2018

      @DD colt shooter Match-grade tube handguard like the one from Olympic Arms' AR-15 line