I swung into a fun store on the way home where I had bought an AR (Sabre M5) about a year ago. Store guy and I were talking about Sabre AR's and he brings over a sweet SPR and hands it to me. Charging the trigger he says try it. Nice! NM trigger. The trigger on mine was terrible but I kept working on it (single stage) and made it much better. Now we have worked the action on this rifle several times, pulled the trigger, worked the collaspable stock.... so I started to push the take down pin to look inside. Guy starts to stammer quietly and says "uuuhmmm please don't do that". He goes on with some BS about a guy messing up a shotgun or some thing so I handed the rifle back to him.
Is there some reason why a customer cannot open an AR to look at the feed ramps, bolt, etc?