Originally Posted by doom-trooper
I will try a larger hex size. Thought I would be saving a little weight with polymer but seems aluminum could have been a sure thing. Idk. Only out 11 bones if I ruin the guard.
I have used a couple of Magpuls' guards, I would use them again if the need arises.
Let Magpul know about your situation, they may have some advice, offer a new guard or something. It is worth the cost of an e-mail to ask.