Does not allow stock to fully collapse - Troy AR-15 Pro Grade Rifle Sling Mount Adapter w/Quick Detach Sling Swivel

When used on my S&W M&P15T, this adapter will not allow my six position collapsable stock to lock in the fully collapsed position.

I wish Troy or Optics Planet would mention that this might happen.

Otherwise the installation is easy and function is great.

One complaint about Optics Planet support, they are not always knowledgeable about products.

This item comes with a 360 pushbutton detachable swivel. (I checked Troy sight and it was even stated on OP sight but not shown in product picture) No need to buy one seperately as advised by OP support when asked. Wasted $20.

I would have researched other options if I had known about the stock not collapsing all the way. But since my gun came with Troy Battle Rails and Flip up front/rear sight I want to stick with Troy brand products.

I will keep this product since I also purchased the Troy sling, front swivel mount and swivel, hooks and extra PB swivel. I like matching sets of things and I dont wont to have to return the whole order.
Pros: ease of setup, functions great
Cons: does not allow stock to fully collapse

This review was written in the old system and had content requirements that are different than reviews written today.