FLP-08 Falx Sheet Metal/Printed Nerf Blaster

This is Falx- a bearing-guided pump action medium-draw springer- using bent sheet metal plates for the body.
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updated September 13, 2025

Description

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This is Falx! Falx is a medium-draw bearing-guided pump action springer- using laser cut and bent sheet metal plates for the body and structure of the blaster. It uses printed trunnions inside the sheet metal body to hold the internal hardware in place, and achieve a very light final build- a Falx clocks in at about 1200 grams. It's also extremely rigid, which makes it extremely accurate.  The stock uses bent sheet metal bars that collapse into the blaster, with five lengths available. 

It's a cool thing. This blaster is tested up to 275 FPS on K25; you're likely to see 260-265 without tuning work, perfect for muzzling down to 250 cap. The sheet metal can have fun things done to it- a beta tester had one cerakoted. Another had theirs auto painted. I know several are planned for powder coating, too. The kits from BearsWares come clear anodized. It's a beautiful canvas.

Print Settings

100 percent infill for everything in “orange”. 4 walls, 20 percent infill for the rest. If you choose to do the TPU ram (which basically makes the blaster indestructible), do that at all walls. Simple stuff!

Availability

BearsWares has Falx hardware kits available at: https://bearswares.shop/products/falx-by-shoelesshistorian . They come standard with a TPU ram and clear anodized sheet metal. Prebuilts and full kits coming soon!

Build Guide

https://imgur.com/a/figxicJ 

BOM

  • Falx body metal (files for cutting/bending included here if you're self sourcing)
  • 45cm barrel
  • 25cm 8mm diameter linear rod
  • 2x LM8UU bearings
  • T4 Bar
  • 3x 10-32 x5/16" screws, and hex nuts for the same
  • 8" length of K25 spring
  • Talon Claw length plunger tube 
  • Torsion spring, 9271K94 from McMaster
  • 3x -123 O Rings
  • 2x 016 O Rings
  • 2x 012 O Rings
  • 2x 6x7mm Ball Detents
  • 46x Voron spec M3 heat set inserts
  • 38x M3x6 button head screws
  • 15x M3x8 button head screws
  • 3x M3x16 screws
  • For included foregrip, M3x30 screw and hex nut

Acknowledgements

Big thanks to Bear for taking a chance on this one, facilitating beta testers, and shelling out for production sheet metal- not a small cost. Also want to thank, in no particular order, Frozenfade, Superstressed, Hackonwheels, Donutcat, Bobmtran, Foxfire Industries, AMSPawn006, and Product of Canada for their beta testing and help. Also, shoutout to a friend who helped me test in the field- you know who you are! 

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Model origin

The author marked this model as their own original creation.

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