https://www.google.ca/amp/s/ctcsuppl...st-cover-ar15/
How does this one work? I have the regular ultimate dust cover. This one is the enhanced ultimate. Maybe it fits better.
https://drive.google.com/file/d/14kJ...w?usp=drivesdk
Seals pretty good I'd say. I have about a .002" gap between the cover and the upper. I can push it closed a smidge more than where it catches but i cant fit a piece of paper between it and the upper
That’s exactly how mine fits. And I wouldn’t consider it a problem. The dust cover isn’t meant to seal off the upper it’s meant to block off a huge opening from getting tons of foreign material on the bolt carrier. And I could probably adjust the detent and make the gap even smaller but it won’t open banging it around but the carrier has no problem kicking it open. Mine is also an early first run SS upper with the large port. I haven’t tried it on my FA upper as I haven’t got around to building it yet.
This Strike Industries cover fits like a glove. No issues whatsoever. This one is plastic.
This Cover does not close. I'm holding it down, and you can still see the detent ball through the gap. This cover is aluminum.
Which one is which? They look the same all around, but one doesn't work.
Here's the number for the plastic one that seems to work fine for my upper:
Here's the aluminum one that doesn't work on either my SS or FA uppers.
It might only take a minor amount of screwing around to make the aluminum cover work, I don't know. I just went with the one that works because I ordered both at the same time.
Could be a result of your carrier not having a deep enough cutout. The detention housing appear to be deeper on the aluminum as the plastic one has a flat spot to provide more clearance. What BCG are you running?