LMBO!
I built (assembled?) about 10 AR15's when I suddenly decided I wanted to build an AR10.
Boy! What a rude awakening!
I bought a stripped upper from Aero Precision and a stripped lower from PSA and a lower parts kit from an outfit in Florida.
The holes in the upper and lower didn't match up.
The pins in the LPK fit the lower, but not the upper.
One fiasco right after another.
Finally figured out that each AR10 maker is proprietary!
When buying AR10 parts, always ask if the parts/pieces are DPMS cut/compatible.
There is a distinct difference between an AR15 and AR10 buffer tube. 😖
Finally, after eventually getting the lower "correctly" assembled, parts for the upper became painful. What fit what?
Who's parts were DPMS cut/compatible and who's weren't?
Then, searching for parts one day, I found a completed AR10 upper in .308 for $259!
Conundrum avoided! ....and much cheaper than ordering parts and returning them! 😕
I still have my eleven pound AR10 in .308 Win.
Love it.
Just be sure that the parts you're ordering are compatible with the parts you have.
Once the military accepted the AR15, the ARMY released specific dimensions for all parts. All AR15 parts are compatible.
The military never accepted the AR10, so never issued "mil spec" for their production.
Ergo, all AR10 parts aren't compatible manufacturer to manufacturer.
"All thumbs are fingers, but not all fingers are thumbs!"
P.S. - not to be a stick in the mud, but if you buy all your parts and pieces from the same manufacturer, your chances of all parts fitting improves greatly. 😉
Last edited by MartinStrummer; 01/09/23.
