Intersting COLT upper receiver feature

**markm** · 03-16-15, 10:54

Originally Posted by Sasahara

https://www.m4carbine.net/archive/in.../t-107431.html

This is the archived thread in question if anybody was looking for it.

That one even has one of LWRCi's employee/shills chiming in.

I love how they used to just inject some shit about LWRCi when no one asked. Haven't seen those scum bags on the forum in a while.

**556Cliff** · 03-16-15, 11:13

The first 6940s didn't have the steel cam pin plates but the plate was added to all 6940 uppers once colt came out with the 6940P.

The plate is really only needed for the piston gun.

**Sasahara** · 03-16-15, 11:13

Originally Posted by markm

That one even has one of LWRCi's employee/shills chiming in.

I love how they used to just inject some shit about LWRCi when no one asked. Haven't seen those scum bags on the forum in a while.

Haha, yep! It definitely has been a long long time since I have seen those guys around. I thought that I saw a more recent thread regarding this but I couldn't find it unfortunately. =/

**VIP3R 237** · 03-16-15, 13:59

Originally Posted by 556Cliff

The plate is really only needed for the piston gun.

Very interesting, I've always felt and heard external piston designs have more wear and tear on the parts.

**3 AE** · 03-16-15, 14:24

More recent thread about that fastener and plate.

https://www.m4carbine.net/showthread...t=#post2077552

**Ryno12** · 03-16-15, 14:27

Originally Posted by 3 AE

More recent thread about that fastener and plate.

https://www.m4carbine.net/showthread...t=#post2077552

That's the one I was looking for earlier!

**markm** · 03-16-15, 15:09

Originally Posted by 556Cliff

The first 6940s didn't have the steel cam pin plates but the plate was added to all 6940 uppers once colt came out with the 6940P.

The plate is really only needed for the piston gun.

That makes sense. They likely just run them on all the uppers rather than have two different part numbers.