Originally Posted by JoeBobOutfitters.com
New Frontier Lowers use the same FCG as the Plum Crazy lowers so the same issue can arise. You can shave them down yourself with a dremel (What I did on my personal lower for a dedicated 22LR upper) or get a narrower hammer.
These should be available from New Frontier soon from what I hear
How much did you have to shave the hammer down? Got any pics for reference? I'm ready to buy the complete lower and it's going to be paired with my .22lr upper from CMMG. Thanks!