Posted: 1/8/2016 9:34:03 AM EDT
| I received my Evolution 3.0 NiB BCG yesterday and gave it a test fit. I gently cycled it by hand as I have no barrel yet. I noticed that the BCG does not pop the dust cover. I tried it several times with the same result. It bumps it, but not to the point it will pop past the detent. The upper is a BCM with their upper parts group as well. Anyone else have this issue? Thanks! |
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FYI, for reference. Here's the operation in the BCM upper with my AIM v2 Black Nitride BCG vs the AIM Evolution 3.0 NiB BCG.
BCG Function |
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Mike_P says he sees the same thing in this other thread:
http://www.ar15.com/forums/t_2_217/273621_Anybody_using_their_evolution_3_0_bcgs_.html |
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Just out of curiosity, does the door still open when the rifle is fired? I would think the ejection force and gas pressure would be more than enough to push it open. I'm just not sure if that could cause jamming issues. I wouldn't think so. I'm looking for parts for a new carbine build and have the 3.0 at the top of my list for BCGs. I'd be interested in hearing more about this issue. |
| Sorry about missing the posts here. I was able to duplicate this issue on a CMT billet upper as well as a Spikes upper. These two were not as sever as the BCM upper, and would not do it every time. In the end AIM accepted it as a return. I'm awaiting my replacement. |
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I have had 3 Evo 3.0 BCGs come back for this issue. All 3 of the BCGs that came back were tested perfectly in multiple ARs here (spikes, BCM, CMT, Mega, Anderson, & Rainier). All of the 3 that were returned said they did not open the ejection door on their BCM rifles. I have since tested those BCGs with multiple BCM rifles here and they did open them for us. We believe these few cases have had more to do with the size of the ejection door bumper.
If anyone has any issue with their BCG not opening their ejection door, email us and we will either exchange it for a BCG that does or get you a refund. |
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Quoted:
I have had 3 Evo 3.0 BCGs come back for this issue. All 3 of the BCGs that came back were tested perfectly in multiple ARs here (spikes, BCM, CMT, Mega, Anderson, & Rainier). All of the 3 that were returned said they did not open the ejection door on their BCM rifles. I have since tested those BCGs with multiple BCM rifles here and they did open them for us. We believe these few cases have had more to do with the size of the ejection door bumper. If anyone has any issue with their BCG not opening their ejection door, email us and we will either exchange it for a BCG that does or get you a refund. Hey Fungus, I might be interested in taking a chance on one or two of these returned/tested good BCGs at the right price. What do you think? |