Hey guys, a buddy of mine has a mini-30 he bought new (unknown build date) it's been flawless, up to the point he acquired a Ruger brand 20 round magazine. Then he started having the following major malf.
He says that with the 20rd mag about 2-3 rounds into the mag it will consistently blow the trigger group out of the bottom of the rifle!!!
I haven't witnessed this, but I believe him. And he say's it ONLY happens with a Ruger brand 20 rd mag. his 5 and 30rd mags do fine.
Now, I have never owned, or even shot a mini-30 so I didn't know this was a possible malfunction.