My 3D Printed XCR AR Stock Adapter

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Gobc

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Recently bought a leupold HAMR and wanted to raise my cheek so I decided to make my own AR adapter. I wouldn't mind getting the 2ed version that NEA put out, but I have no idea where to find it. I made this piece out of Carbon Fiber reinforced Nylon printed at 0.1mm. I had to increase the width around the buffer tube thread to around ~6mm to give it enough strength. However despite this, one good wack, and I'm pretty sure the stock would break out of the adaptor. Cool for hobby use, but wouldn't pass military service abuse. Good thing I'm not a soldier. I'm going to keep my aluminum stock adapter just in case. Enjoy the pics.




 
As a 3D printing connoisseur, great job ;)

If you want an Aluminum one, you could get Shapeways to do a wax print (should be able to do that size) and then lost-wax cast it. Chase the printed/cast threads with a tap. Or the Nylon they use is incredibly strong, I've been using it for years in gun parts and no breakage. Because it's SLS (Selective Laser Sintering) printed, the part is a homogeneous part, and the layers don't have an inherent weakness. It's also more heat resistant although that's not much of an issue for a stock.

VIeYUSxl.jpg


ETA

Link to fullsize:

http://i.imgur.com/VIeYUSx.jpg
 
Last edited:
F22_RaptoR said:
As a 3D printing connoisseur, great job ;)

If you want an Aluminum one, you could get Shapeways to do a wax print (should be able to do that size) and then lost-wax cast it. Chase the printed/cast threads with a tap. Or the Nylon they use is incredibly strong, I've been using it for years in gun parts and no breakage. Because it's SLS (Selective Laser Sintering) printed, the part is a homogeneous part, and the layers don't have an inherent weakness. It's also more heat resistant although that's not much of an issue for a stock.

VIeYUSxl.jpg


ETA

Link to fullsize:

http://i.imgur.com/VIeYUSx.jpg
Click to expand...

Thanks for the info. I'll have to look into it.

That is the ###iest HK USC (Or an actual UMP?) ever.
 
Last edited:
F22_RaptoR said:
As a 3D printing connoisseur, great job ;)

If you want an Aluminum one, you could get Shapeways to do a wax print (should be able to do that size) and then lost-wax cast it. Chase the printed/cast threads with a tap. Or the Nylon they use is incredibly strong, I've been using it for years in gun parts and no breakage. Because it's SLS (Selective Laser Sintering) printed, the part is a homogeneous part, and the layers don't have an inherent weakness. It's also more heat resistant although that's not much of an issue for a stock.
Click to expand...
What's the cost on those options? Milling from billet would likely be cheaper but I really don't know.
 
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