port cover

[RCS]

Can anyone identify this port cover ? The small snap ring holds the spring loaded plunger in place, why would it also have a cross pin like the early Colt ?Attachment 19261Attachment 19260

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[imarangemaster]

I have seen early ones like that, but will have to dig around and see if I have any info. Have you tried the retro forum at AR15.com great resources and stickies there.

[PrivateSnafu]

Standard A1 ejection port cover. One or both of the tabs that held the latch assembly were broken off. The only easy way to repair it would be to drill a cross hole and press in a spring pin.
Here is one of mine that has the tab broken off. I was contemplating drilling a cross hole and using a pin to hold it in place to make it a usable part again.





Original 601 EPC has square pad on the outside and like you stated the early Colts has no retainer c-clip for the detent pin. And used a spring pin to hold it all together.

[RCS]

Thanks for the explanation concerning the port cover repair with the pin. It seems like alot of work to drill to install a pin. I have seen port covers that had that tiny snap ring wear out and fall off dumping the internal plunger and spring. The interesting thing about my port cover with the pin installed is that it still has the tiny snap ring ?

Photo of a Colt SP1 in the three digit serial number range, Colt used a tiny roll pin on their early port covers not the solid type of pin.Attachment 19401Attachment 19400 Also Colt did not use the tiny snap ring either.
Now I understand what you were talking about on the taps, I have some port covers too with broken off taps. Thanks for the photos