I’ve been tasked with doing the final assembly on an AR that was gifted to a family member. It was supposed to be ready to go when he got it but after I unscrewed the brake by hand while trying to figure out how to get the Warden off (I’d never handled one before), questions were asked and “clarifications” were made but I digress...
The instructions I found online mention shims and Rocksett but neither were sent with the rifle (just a standard crush washer) and I don’t have any Rocksett.
Would it be possible to find suitable shims at a hardware store? Is Rocksett a necessity on a rifle that going to see an extremely low round count (less than 100rounds/year is my guess)? Would red Loctite be sufficient?
Thanks!