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UDL 1887 Toy to Airsoft Conversion

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Creation quality: 5.0/5 (1 vote)
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3D model description

EDIT: Added nozzle file which was originally missing

A fully reversible conversion to turn the UDL shell ejecting Winchester 1887 foam dart blaster into a VSR magazine fed airsoft gun.

https://www.youtube.com/watch?v=Zaticd_St20

This conversion completely replaces the barrel assembly on the 1887, changing the finicky shells to a reliable and consistent nozzle based feed into a hop unit. With the upgraded spring, this will get you about 0.8J, or 300fps with a 0.2g bb. With the right barrel and bucking, you can get very impressive accuracy and range even at this mediocre power.

Optional parts in this kit are a front/rear sight and a sling mount.

Required hardware:
A 150mm gbb/vsr inner barrel (Can be longer or shorter, about 175mm max.)

A vsr/gbb bucking. I used a 60 degree maple leaf MR along with a maple leaf 6.01 barrel. If using maple leaf, use the included spring clip.

VSR magazines. I use Action Army 50rnd.

For the hop unit, 2 M3x8 cap head screws. Head dia ~5.3mm

For the TDC (Hop adjustment) 1 M3x8 grub screw

For the nozzle, 2 M5x5 grub screws

For the mag catch, 2 M3 grub screws, 6mm or longer, and one ~8mm diameter spring, 20mm or longer

For the forend to barrel connection, 1 m4x12 screw. Head dia 6mm or less.

For the mag tube, 1 M5x50 screw, head dia 8mm or less.

For the rear sight, 1 small M2.5 coarse thread screw, 5mm long with a low profile head. Cutoff lever or safety lever screws from inside a gearbox are about right, but you can find screws like this in cheap toys and such.

For the front sight, 1 M4x8mm screw and nut. Head dia 6mm or less.


3D printing settings

This can all be printed in PLA+ aside from the optional sling mount, which must be TPU. I printed everything at 0.2mm with a 0.8mm nozzle, but 0.4mm and 0.6mm nozzles should work.

3D printer file information

  • 3D design format: STL Folder details Close
    • 1887 barrel clamp.stl
    • 1887 forend.stl
    • 1887 front sight.stl
    • 1887 hop unit lower.stl
    • 1887 hop unit upper.stl
    • 1887 mag catch.stl
    • 1887 mag tube 2.stl
    • 1887 mag tube.stl
    • 1887 nozzle.stl
    • 1887 outer barrel.stl
    • 1887 rear sight mount.stl
    • 1887 rear sight.stl
    • 1887 sling mount.stl

    Learn more about the formats

  • Last update: 2022-08-04 at 18:19
  • Publication date: 2022-04-06 at 22:35

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