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BB-420 Modular Carbine (Functional Prop)

This is a toy for cosplay or display purposes only! Never brandish this as a real weapon or bring it out in public, this is a toy modeled off of a REAL LIFE firearm, treat it as such. Just because you know it's a toy, doesn't mean other people will.  Enjoy, be safe, and be smart!

This was big project for me and I am very pleased withed how it has turned out. Modeled using nothing but a 2D image of an FX-9, tracing and some imagination in Freecad! Customize it to your own liking with the Provided step Files! If you're looking for something akin to a nerf gun this is NOT for you, even the cheapest nerf gun will outperform this in every way, if yoy can even get it to fire. It still makes a great cosplay prop or something cool to put up on your tool rack.

Base Features:

  • Top rail for mounting accessories. 
  • 2 Magazine sizes.
  • 2 Barrel Cover options to change the look from a AR to an SMG
  • Realistic magazine catch and release.
  • Bolt-action firing. 

Optional Accessories:

  • Collapsible Stock
  • Rail mounted iron sights
  • 3 different grips to choose from
  • More to come!

Printed Parts: 

1 x Lower Receiver

1 x Upper Receiver

1 x Barrel (SMG or Rifle)

1 x Barrel Cover (SMG or Rifle)

1 x Muzzle (Rifle Only)

1 x Grip (Basic, Basic-Textured or Ergonomic)

1 x Bolt

1 x Charging Handle

1 x Latch

1 x Magazine Catch

1 x Rear Plug

1 x Trigger

1 x Selector

1 x Stock Rail

1 x Stock

1 x Stock Lock

1 x Magazine (Short or Long)

1 x Magazine Base

1 x Magazine Base Back Plate

1 x Lift Table

1x Magazine Spring Guide

Print Settings:

Reccomended Material: PLA, PLA+, PETG.

Supports: Required for most parts, use your best judgment based on the printer and slicer you are using.

Print Orientation: Refer to print orientation file.

Walls/Top/Bottom: 5+

Infill: Barrels, Latch, Magazine Catch, Bolt, Charging Handle, Trigger, Stock Lock & Rear Plug should be printed a 100% infill. Everything else can be printed at 15% or more if you want more weight.

Additional Hardware:

1 x M3*5 Bolt

6 x M3*6 Bolt

2 x M3*10 Bolt

4 x M3*25 Bolt

4 x M3 Nut

3 x Pen Spring

1 x 0.6x10x305mm Spring (Can be found on AliExpress)

            OR

1 x 0.8x10x305mm (Can be found on AliExpress)

Note: These exact Spring and Bolt lengths are not 100% necessary to make this model functional, get creative with junk drawer stuff!

Tools:

  • Sand Paper (120-180)
  • Needle Files
  • Hot Glue
  • Needle Nose Pliers
  • Screwdriver

Cheers, and good luck!

BB-420 Modular Carbine (Functional Prop)

by Brew Boy · original on Printables ↗

Toys & Games / Other Toys & Games

♥ 719⬇ 1.4k🖨 0 prints

Print profiles

  • Magazine Catch.stl

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  • Trigger.stlDEFAULT

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  • Magazine Base.stl

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  • Rail Mount Rifle LEFT.stl

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  • Selector.stl

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  • Magazine Base Back Plate.stl

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  • Stock Latch.stl

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  • Rail Mount Rifle RIGHT.stl

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  • Rail Mount Upper Right.stl

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  • Rear Sight.stl

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  • Ammo.stl

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  • Lift Table.stl

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  • Barrel (Rifle).stl

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  • Barre lCover (SMG).stl

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  • Magazine.stl

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  • Barrel (SMG).stl

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  • Rail Mount Upper Left.stl

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  • Rear Plug.stl

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  • Latch.stl

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  • FrontSight.stl

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  • Charging Handle.stl

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  • Bolt.stl

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  • Magazine Spring Guide.stl

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  • Magazine(Long).stl

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  • Basic Grip.stl

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  • Stock Rail.stl

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  • Basic Grip (Textured).stl

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  • Ergonomic Grip.stl

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  • Upper Reciever.stl

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  • LowerReciever.stl

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  • Stock.stl

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  • Barrel Cover (Rifle).stl

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  • Muzzle.stl

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  • PRINT ORIENTATION - REFERENCE ONLY.3mf

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