The Magpul Industries ASAP Ambidextrous Sling Attachment Point QD is made of steel and should not be staked.
The Magpul Industries ASAP Ambidextrous Sling Attachment Point QD will work with an AR10.
Yes, the Magpul Industries ASAP Ambidextrous Sling Attachment Point is compatible with an Aero Precision M5E1 lower receiver.
Yes, the Magpul Industries ASAP Ambidextrous Sling Attachment Point QD will work with the Magpul QDM sling mount.
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Yes, they should be able to work together.
These are to be used with collapsible stocks/braces.
Yes, it will work just fine.
Yes, this is for QD slings.
Unfortunately, no. The buffer tube protrusion, that has all the stock detents, is one continuous piece. Some QD sling mounts will work. You need to find ones that can slide over the buffer tube and clamp down.