My social distancing has kept me at the shooting range for the past week running drills and testing out new parts etc. I dont mind helping anybody with whatever they have, I actually kind like it because it gives me a chance to see stuff I might not have been exposed to. This week is seems to range just been covered up with folks with real crap parts and I seem to get called on to help them work it out. My question/gripe is this.....how do you gently tell someone the parts recommended to them by their buddies are junk!? I watched a guy drop his AR twice because the QD sling socket built into his rail was not the correct size and thickness and turned loose. I showed him what it was supposed to look like and he said his buddy said his rail was the best one to get and they had just installed it. Parts are tricky to find now so I showed him and rigged for him a way that works that's not qd. He asked me how to fix it and I didn't know how to tell him his rail wouldn't hold up for it ( it was loose by hand torque.) In for knowledge because I seem to be a target for these folks. If its not a bolt on it's an optic or the gun itself.