M67 Frag Grenade Replica Prop with Flying Handle

This is a 1:1 scale model of the M67 Frag Grenade used by many armies throughout the world. This grenade has articulated pin and handle – the handle can be optionally configured ot be spring loaded and fly off when released.  The model is easy to snap together, no glue is required.

Spring options (for flying handle)

1. Metal Spring (recommended) – if you have a metal spring, even a pen spring will usually work, then print the metal spring profile.
   1. Bambu Store's 0.5x7x12mm spring is what this model is designed to work with.
   2. Pen springs work as well though, many different types have been tested and work fine.
      1. You can often cut pen springs in half and get two grenade springs since this model only needs a 12mm long spring and pen springs tend to be about 24mm.
2. Plastic Spring – if you don't have a metal spring, but still want the handle to fly off, then print the plastic spring profile.
   1. If the spring eventually wears out, just print a new one and pop it in.
   2. Don't leave the spring under tension when not using it as it will wear out much faster.
   3. Avoid Matte and Silk filament for the spring itself, Basic and Metal work better.
3. No Flying Handle - if you don't want the handle to fly off and just want a grenade model, simply print either version and don't put in a spring.

Bambu filaments used

• Silk+ Silver
• Metal Iridium Gold
• Polymaker Army Green (Amazon link)

[New v2] Metal Spring Assembly

1. Use the two pegs to connect the two halves of the grenade together.

2. Flip the silver top upside down and insert the peg.  Make sure the peg is sticking out of the top, if not rotate 90 degrees.

3. Insert your spring into the silver top next, just like you did with the peg.

4. Screw the silver top onto the grenade – keeping the silver top upside down makes this easier (so spring doesn't fall out while screwing it on).  That's it – now you can attach the spoon handle, put in the pin, and use it – enjoy!

[New v2] Plastic Spring Assembly

1. Use the two pegs to connect the two halves of the grenade together.

2. Flip the silver top upside down and insert the spring.  Make sure the spring's peg is sticking out of the top, if not rotate 90 degrees.

3. Screw the silver top onto the grenade – keeping the silver top upside down makes this easier (so spring doesn't fall out while screwing it on).  That's it – now you can attach the spoon handle, put in the pin, and use it – enjoy!

Old v1 Assembly

Follow the diagram below for assembly and let me know in the comments if you need any help.  Note that its easiest to attach the silver top upside down so the spring doesn't fall out.