3D Printed Homemade Raptor CS - 12 Nerf Blaster

This is a spring powered rifle style blaster which takes nerf magazines and can fire standard elite darts. In addition, it can fire knock off darts from china as well as stefan darts.


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This blaster is designed to be incredibly powerful (shoots through cardboard) while having a relatively high rate of fire (pump action).

See firing and other features working in this video:

It features:
- A sliding breech mechanism
- Magazine release button
- Safety switch
- Slam fire
- swappable foregrip
- 6 picatinny rails
- Iron sights
- 9V battery storage in the handle (for future LEDs)

Materials and methods

Additional Materials:
- 50mm Outer diameter 44-46mm Inner diameter pipe (polycarbonate or PVC): 480mm length
- 10mm acetal/delrin/nylon rod: 210mm length
- K25 Primary spring from Mcmaster or other large spring (1x)
- 44mm OD O-ring (1x)
- 16mm ID O-ring (1x)
- 16mm elbows (2x)
- small compression/extension springs (buy an assorted box)
- 16mmx2mm aluminium bar (2x 202mm lengths)
- 15mm copper pipe (150mm and 55mm lengths)
- 16mm PVC pipe (260mm length and 2x small stubbs)
- 20mm clear PVC pipe (~70mm length)
- M3/M4 Cap head and countersunk bolts of various lengths
- 5mm threaded rod (could use a cut down M5 bolt)

Overall cost of other materials is around Β£10 - Β£18 per blaster depending on part sources.

Make sure to print the Muzzle piece in a bright colour so that it doesn't look like a replica firearm.

Slots need to be cut in the 50mm pipe for the priming mechanism to work. I used a jigsaw, but you could drill a series of 7mm holes and file it out into a slot.



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Mini randomYou Will Never Know added this to the OutOfDarts collection ago
2c20a7299319bae293bd7e3108287ad4?default=blank&size=40majkl added this to the guns collection ago
Cac7f8b64404db9f023fb456802087ef?default=blank&size=40FilamentGuy added this to the Nerf collection ago
68d2049f3738ddfad6260e537320bc7b?default=blank&size=40edwardh added this to the Toys collection ago
Ab070ed6bd35e37649fec781889e92f4?default=blank&size=40stachas added this to the nerf collection ago
Mini img 20160616 214649728ltmhenrique added this to the airsoft collection ago
23f304049960b18f3a29c57ee2737b89?default=blank&size=4012Thunder added this to the Nerf guns collection ago
5dbc1d4f967fbb5c7bddcecf157cb595?default=blank&size=40Joseph Dyrell Williams IV commented ago

Is there a build guide for this? I'd like to take a crack at it. Did you print the parts in PLA?

A2ad4e358d33dbb9be26b1fbcb31fd11?default=blank&size=40Fernando Miras Sosa added this to the Juguetes collection ago
2970dff773edc404e411c11f120acced?default=blank&size=40Designforge published this design ago