50 cal. Machine gun....not a movie prop, but a prop none-the-less

[PTK]

welp, obviously this wasn't in any movie or anything. Just a prop i built back in college. Let me know what you think

It's a 5'4", 50 pound, shoulder-slung 50 caliber machine gun. When you pull the trigger it really ejects 50 caliber shells out the side, and has CO2 powered blowback action for the cocking handle (yeah i know real 50s don't have blowback like that but i thought it looked cool) the blowback is so powerful . It has a weight on an offset cam that shakes the gun when fired and it has the option of propane adapter instead of co2 and the exhaust ports of the valve run down to the barrel with an electronic grill lighter.....but i've never had the balls to try it with propane, in fear of dying or burning my beloved 50

It obviously isn't supposed to be based on a real M2 or anything, i was going mor for a post apocalyptic Mad Max type of feel........like it was ripped off of a jep and modified and pieced together.

Here's a pic:

and my girlfriend is a photographer so we did a few photoshoots with some friends of ours..

here's a pic of the guts:

and here's a slideshow/videos:
PTK's 50 cal

 

[KevVader]

I like big guns!

 

[KingNothing]

That is awesome! Very good work! What's it powered by?

 

[Gojira61]

Very cool, nice work.

 

[PTK]

That is awesome! Very good work! What's it powered by?

the shell ejection is powered by a cordless drill motor and some rechargable batteries, and attatched to the chamber that ejects the shell is a gear with a tooth for every shell chamber, so every time a shell is ejected, the gear teeth tap a momentary contact switch that goes to a solenoid valve that reverses the direction of the CO2 (form a 9oz paintball co2 tank) which activates the slide causing the blowback action

 

[DavidS]

can i have her number?

oh yeh... nice gun!

 

[PTK]

oh, and as for materials:
main barrel is gas pipe
flash hider is a straight gas pipe connector and part of a beer keg tap
barrel shroud is abs pipe with acrylic spacers inside
main body is wood, with black acrylic cover panels
ammo door is aluminum
front sight, clean internal ejection gears are laser cut acrylic
main bullet chamber is pvc pipe
cocking handle is aluminum,
cocking handle slide is a drawer pull/slider
bullet shells are real 50 cal brass
bullet tips are cnc lathed aluminum (i wanted bigger, longer, pointier bullets than real 50 cal ammo)
and a bunch of misc hardware, bolts, handles, screws, switches, pneumatic cylinder, batteries, etc

 

[PTK]

can i have her number?

oh yeh... nice gun!

maybe we could work something out.......what props do you have to trade?:lol

 

[jcoffman99]

I like big guns!

..and I can not lie. You other brothers can't deny...

 

[sctcarts]

That's just damn incredible...and beautifully planned and built! Well done!

-sctcarts

 

[PTK]

That's just damn incredible...and beautifully planned and built! Well done!

-sctcarts

thanks sctcarts!......bt beautifully planned? certainly not! i would do it 100% differently if i had to redo it, (especially a welded steel frame and aluminum panels instead of the thick wood and acrylic i used)....very little planning involved, i was just really excited and motivated, i built the mechanisms first and once i had all of those working, i built the frame to accommodate that......pretty bass ackwards design but thanks very much for the kind words!

 

[DavidS]

maybe we could work something out.......what props do you have to trade?:lol

dood, take my whole collection, its be an even trade!

 

[Darth Mawr]

Now, THAT is a BFG! Great Job!:thumbsup

 

[Aluke123]

That thing is sweet. Get a video of firing it with propane :cool

 

[JoblessPunk]

maybe we could work something out.......what props do you have to trade?:lol

lololol

that a pretty sweet prop, nice pix!