Not sure why everyone out of stock, I'm add a Magpul UBR Gen 2 Collapsible Stock on my 6.5 Grendel and all wright up's on it, the Vltor A5, Spring And Buffer Kit SP-A5, is the best one to Use.
I'm wondering if there was a recall on this buffer spring kit, or are they that popular to be sold out everywhere,,,, even VLTOR has them on back order.
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