FEATURES: Armaspec Stainless Steel Anti-Walk pins are standard .154 sized pins. These pins are designed to keep your hammer/trigger pins from coming out. *Thread locker recommenced. * Fits AR 5.56/.223 and AR 7.62/.308 * Stainless Steel * Made in U.S.A * Lifetime Warranty INCLUDES: 2 Armaspec Stainless steel Anti-Walk Pins / 2 Stainless Steel screws with Black Oxide finish / 2 Hex Keys