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Mossberg 500 safety loose

5.9K views 5 replies 5 participants last post by  sethnmisner  
#1 ·
I bought a tactical style Mossberg 500 six months ago. I put about 1500 rounds through it shooting trap (I know, it's not the perfect tool for the job). During a round of trap, I think I saw what appeared to be a ball bearing fall from under the plastic safety switch on the rear of the receiver. The safety became loose, to the point that it would switch on from the recoil of the gun or partially impede the trigger pull when jostled.
I disassembled the gun and found that I could not tighten or remove the safety from inside the receiver (probably for liability reasons). I thought about forcefully removing the entire safety mechanism with pliers, but I am worried about the possible legal implications if, God forbid, I ever have to use the gun in a defensive situation against an intruder. So I did the simplest effective thing I could and duct taped the safety switch in the "fire" position. It works, but I would like a better remedy. I'm no gunsmith, and I have a limited number of tools.
Is there a ball bearing under the safety and can I replace it? Are aftermarket safeties available? Would I be better to just leave the tape on the gun? Is there another solution?
Thanks for your help,
MT
 
#2 ·
Yes, you lost the "detent" ball. Likely the "softest spot" on a Mossy. They are cheap and anyone who calls themselves any type of 'smith should be able to fix it for $15 or less. Yourself, if you can figure it out, postage will be the biggest cost.
 
#6 ·
Well, at least your ball bearing loss wasn't a product of your own stupidity. I lost mine in my workshop when it decided to just f**k off into the sunset during a full strip down.

To answer your question, yes, there are aftermarket kits. You can find them on Amazon for $15. Make sure they have the bearing in them before purchase.

However, I just recently installed mine, and either the safety switch block is missallined, or the ball tensioner spring has worn out. Either way, my upgrade just ended up being the same problem, but now with a bearing on the assembly.

Also, the replacement hex screw. When they say don't overtighten, it isn't a suggestion.

Another thought is that you might need to shim the safety plate that sits under the switch. You can do this by either buying an aftermarket part or punching one out of sheet metal. Hope this helps.