Castle nut with enhanced end plate - black/black
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Looks good but wish they would use better paint, it scratched easy using the castle nut wrench to tighten, i have to repaint
This item fits perfectly and locked on positively to my mil-spec buffer on my 9mm AR pistol build. Locked my Magpul sling with a QD connector into the socket very solidly and I'm off to the range! Product and service at ardustcovers.com are top notch!