KNS Push Button Pivot Pin with Stud - AR15
This is a .250 inch push button pivot pin with the quick release sling stud. This is the ultimate set-up for fast sling removal and field take down and allows you to eliminate tension on the upper receiver. Manufactured by KNS Precision.
Smith & Wesson Performance Center Model M&P R8 Eight Shot, 5 inch .357 Magnum