I have a PSA AR-10 in 308. Everything functions fine but I have now noticed some damage to the front corners of the locking lugs on the bolt. I know what some are going to say, it's a PSA what do you expect. I'm really just looking for others that have seen this and the probable cause. I'm thinking maybe somehow the barrel extension is twisted slightly. Maybe the notch in the upper receiver is slightly off center. If the bolt is coming in and glancing off the lugs it might cause this. There is some slight amount of damage visible on the corresponding barrel extension lugs. I'll post a picture when I can get to a computer and reduce the size enough.
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Strange AR-10 bolt damage
- Thread starter rgitzlaff
- Start date
50 shooter
New member
Have you contacted PSA?
They're pretty good at taking care of customers from what I've heard and seen.
They're pretty good at taking care of customers from what I've heard and seen.
jetinteriorguy
New member
Definitely do this, at least they used to be good at responding quickly.Have you contacted PSA?
They're pretty good at taking care of customers from what I've heard and seen.
Your are probably correct, the barrels receiver extension is out of clock.
It is possible that the alignment pin is loose. or broken.
I would send it back to PSA , and tell them what you think has happened.
Dependent on who looks at it at PSA... they might say it will be fine, however, the AR system wasn't designed to batter the bolt against the lugs.
It is possible that the alignment pin is loose. or broken.
I would send it back to PSA , and tell them what you think has happened.
Dependent on who looks at it at PSA... they might say it will be fine, however, the AR system wasn't designed to batter the bolt against the lugs.
stagpanther
New member
Without pictures--impossible to say. I'm kinda doubtful of "major" issue if the rifle otherwise functions fine as you say--a major clock/cycling issue would likely have symptoms of trouble going into battery/ unlocking etc. when you take pictures also take pictures of the carrier sides/bottom. Another thing I'd recommend is doing a few tests like locking/unlocking the bolt to see if there is notable resistance. Sometimes brand new lugs can have sharp edges that may develop burrs as they wear in. If you have obvious asymmetric wear--like only one or two lugs that show abnormal wear--then yeah, you might have an alignment issue. I've had a couple AR 10 upper receivers that needed serious lapping to get an even ride of the carrier.
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