Todays halfway failed project…..

I really wanted to take my colt gen 1 LMG apart and put the prototype flattop upper on it as used on the USMC trials but unfortunately do not have the tools to take the upper apart so this works for now.

The lower on this is a real deal demilled M16AR prototype magwell serial XMC000000 and the pivot pin and mag catch are original to the lower.

The upper is a legit spare prototype upper that I wanted to use to put this all back to 100%. I snagged it years ago not knowing what it was and lucked into this listing shortly after I snagged the magwell. So it all came together perfectly!

Both rifles have slickside open bolt BCG, bolt catches and hydraulic buffers with green springs as well as diemaco marked grips. The other gen 2 upper has a prototype lancer mag used in the lmg trials and a Troy northern guard lower that was meant for the Canadian guard before the ban hit.

I truly want another barrel assembly to put on the flattop to I can keep the other one original and also need an m60 bipod but this works for now.

The listing posted ended last year and had serial #1 and the other picture is of the lmg green springs vs a normal rifle length spring

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Very nice sir. I appreciate you sharing ??

All I want is an IAR upper.

They got shipped from Diemaco with a A2 DIS. All the A2 DIS were made exclusively for the USMC trials.

This is a cool thread. Thank you for sharing. What does the rear half of the lower look like. Is it a safe/semi/auto or a safe/fire like the gblisting?

Update:

Got a doner LMG kit in the mail yesterday and will sell the bcg, lpk and bipod to offset the cost as all I needed was the barrel, handguards and grip.

Now it’s even more close to being done! I did have the correct early handle I cleaned up and matched on it and just need an m60 bipod to be all done!

This is a project I loved doing as I was brining it back from the dead to how it deserves to be! Started out with a demilled magwell and happy to have it all done!

Ironically Centurion Arms has serial #2 so that should be all 3 accounted for. This one is slightly more unique just due to the serial number being all 0’s

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Looking great man! Congratulations with the continued success finding parts.

Great looking piece of machinery

Did you have the lower rewelded to a 80%? Reason I ask is you mentioned it was a demilled magwell, looks really good though.

Yes the magwell was a sawcut and then it was mated to an 80% rear

some neat history here

Mark

What’s this? Did you make them out of wood?

This is one of the original engineering models (no 3D printing back then) for the handguard that was fabricated out of wood to make the mold for the handguard on the LMG.

Mark