Silver Supporter
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Ive been building them for 30+ years. In the beginning I checked them all with headspace gages. Ive never seen one that wasnt in spec for headspace unless it was a OLD worn out rode hard and put away wet AR or M16 from the 60's ( some of the garbage like we had in the Army ) . Modern stuff I stopped doing the headspace thing years ago. Not like I could really adjust the headspacing anyway .
Specialized tools my eye. Receiver block and a magpul wrench is all you need. MAYBE a reaction rod if you like to overly tighten muzzle brakes. I will say that little tool I bought to install the front detent pin and that other one to put in the bolt catch roll pin have come in handy.
Specialized tools my eye. Receiver block and a magpul wrench is all you need. MAYBE a reaction rod if you like to overly tighten muzzle brakes. I will say that little tool I bought to install the front detent pin and that other one to put in the bolt catch roll pin have come in handy.