I guess I never though of 22lr, really all the forces go strait to the recoil spring on the carrier and then to the buffer tube part of the lower, my only worry would be how well the threads mate to the barrel nut. I honestly might try that... depending on how square the barrel is to the receiver when I mount it.
Originally Posted By shadow7874:
pretty sick. How do you have access to a 3d printer? work related?
We have a couple here at school but the high end ones are reserved for special projects and stuff. Ive printed a few small pieces just for fun on our budget built printer. Its neat stuff.
You should print out a BCG, CH, and gas block too.
I printed it at school for a project on an older Dimension printer, sometime soon they are getting the newest version with multi-color and water soluble support material... but I'll pry graduate before then. Luckily I've been working on a reprap so I can keep playing with making parts, its got a ways to go though. Charging handle wouldn't hold up to one charge, the walls would be too thin for the ABS plastic. I'm planning on making a bolt carrier, as well as lower receiver.
Originally Posted By jgalvar:
I may be making my own if you still have the file and would be kind enough to forward it
Download the one from CNCGuns.com
as I'm sure its more accurate than mine.
Originally Posted By Torquemada055:
How much do you think you would save if you shaved off the f/a, brunton bump and most of the rail?
Milspec Upper has 4.5 cubic inches volume. Chopping off the FA, brass deflector, and half the rail brings it down to about 3.9 cubic inches, so 86% the material of a regular one. Just take your uppers weight times .86 and that's your answer.