4mm Roll Pin for HK/PTR Front Sights
Replacement Roll Pin for Blitzkrieg Gen 2 HK Front Sights or any factory HK/PTR front sight. Fits both HK and PTR guns. This is a 4 x 12mm steel roll pin which is the standard size for HK style front sights. Made of spring steel with a black finish and a wall thickness is .5mm. Compared to factory HK roll pins, these are rounder and have a slightly thinner wall thickness which makes them a bit easier to install since you don't have to hammer the punch as hard, but are still plenty strong.