machining ar upper forging?

[yari]

has anyone seen any tutorials on machining an upper from a raw forging? ive seen ray vin's lower tutorial, looking for something similar for the upper.

[Jak1]

http://www.cncguns.com/projects/ar15a3upper.html

http://www.cncguns.com/projects/ar15a2upper.html

Not a tutorial, but the closest I've seen.

[yari]

thanks Jak1. i've seen cncguns stuff, its a help but since he's using a billet im still a little lost on where to start things. i'm using a manual mill with a DRO. if anyone has any experience working a upper from a raw forging please share!

[9mmghost]

billet is material, btw.
new here.
id help if i can, im a machinist, but im not really sure what it is you are asking for help with!
DRO is good, use mics over calipers, et al....anyway, let me know if i can help out. nice to meet you!

[yari]

i am looking for info regarding the steps of machining a upper raw forging. setups, order, etc. im sure i can figure it out, since i dont have a stripped upper to compare with im hoping someone here could give some tips and or things to avoid. has anyone actually done one? google searching is an endless list of lower info but no upper.

[yari]

no one? is upper info a trade secret? anyways bump.

[Mud]

I would join the HomeGunsmith.com forum and ask if anyone has it documented. I haven't been able to renew my membership yet, but they might have what your looking for. Good luck.

http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi

[Lostsheep]

If you do this successfully, I would love to see pics and a write-up.

Doing an upper doesn't appeal to me as much as a lower because you can buy them without the DROS hassle. I suspect, but don't know, that the tolerances are much tighter and the operations significantly harder.

Where did you find raw forgings?

[yari]

If you do this successfully, I would love to see pics and a write-up.

Doing an upper doesn't appeal to me as much as a lower because you can buy them without the DROS hassle. I suspect, but don't know, that the tolerances are much tighter and the operations significantly harder.

Where did you find raw forgings?

DSA has them. $25 for uppers $25 for lowers. for me its just another challenge kinda like a first build. if i do get it going ill do a write up for everyone. i expect to screw a few up so it may take me awhile. anyway any info/tips would be great!