[ARCHIVED THREAD] - Dust Cover Port

Posted: 6/26/2013 1:53:38 PM EDT

Has anyone ever wore out the notch on their upper receiver dust cover port causing the dust cover to not stay closed?
I am just curious as usual.

Posted: 6/26/2013 2:11:28 PM EDT

[#1]

Not anything to be concerned about. I have a Colt SP1 that I have been shooting since 83 and the cover still works just fine.

Posted: 6/26/2013 3:34:32 PM EDT

[#2]

As long as it was machined to spec then all is OK...some Oly uppers I have seen the cover barely stays closed....from brand new.

Posted: 6/26/2013 4:58:22 PM EDT

[#3]

Oly? which brand is that?

Posted: 6/26/2013 5:12:41 PM EDT

[#4]

Quoted:
Oly? which brand is that?

I think he means Olympic Arms.

http://www.olyarms.com/

Posted: 6/27/2013 8:37:11 AM EDT

[#5]

i open and close mine a lot. it still should never wear out to where it wont stay closed but it definatly has worn a grove in the upper.

Posted: 6/27/2013 10:48:46 AM EDT

[#6]

The dust cover on the first Colt/Walther tactical .22lr "AR" wouldn't stay shut because the receiver notch was cut too deep (so no doubt if any AR is heavily used this could happen). Second gen models have that problem corrected and now work like a .223 AR.

Posted: 6/27/2013 11:07:47 AM EDT

[#7]

I've seen a few uppers where the holes in the tabs for the port cover pin are machined too low... and the cover pops open too easily.

As far as wearing out? Never seen that.

Posted: 6/27/2013 12:21:35 PM EDT

[#8]

If you ever do have a problem, there's the Mako Adjustable Ejection Port Cover.

[ARCHIVED THREAD] - Dust Cover Port

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[ARCHIVED THREAD] - Dust Cover Port

[ARCHIVED THREAD] - Dust Cover Port