M231 Firing Port Weapon

Anyone building clones of these, any demand for the handguards? I think I just picked up 4 sets at a gun show.

Just to add a few more details, these are from a surplus auction and were in a plastic bag with a label marked qty 8 and some part numbers, 5 of the halves look to be new with a dull finish, the other 3 are used and have the early M16 shiny finish and have some cracking so likely when they were replaced the bad ones went in the bag.

Sounds different.

Post a pic!

I will try to post some photos but I don’t think I can, I have some attachments in old locked threads that I can’t delete and I believe I am over my limit on photos. If anyone wants I can send some photos.

The Bradley guys in our battery used those.

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I think these also fit the Colt 633 DOE 9mm carbine.

Never seen an upper in person and that’s the first time I have seen the handguards removed.

The receiver extension and butt stock(at least I think they were original) seemed to be fairly common at Knob Creek and and various parts places back in the mid 1990s.

I’m going to watch the progress on this one, had to look that one up on the ol Google

Ian (“Gun Jesus”) has an 11-minute review of this weapon: https://www.youtube.com/watch?v=FuZmAtrRsN0

Quite interesting.