Thread: ar15 short stroking

Make sure you dont have the gasblock pushed hard up against the shoulder. There should be a gap between block and shoulder because the ar15 was designed to have a handguard endcap placed in between. Google the thickness of the endcap and adjust accordingly. Theres a chance the gasblock is half obscuring the port because of this, some gas blocks will, some wont. If you have shortened your barrel then there is a chance the gas port is not big enough anymore. I dont know if rock river over engineer there gas port sizes or whether they skate close to the edge of reliability when they set them up.