I had the black plastic front tip originally and had the same issue. I called dye, sent it in and got an all metal bolt. Problem solved.
08 Proto SLG: Ultralight Trigger, Freak Barrel, Featherlight Microswitch, Spring Detents, New Designz Feedneck. Plans for 7th Element board.
05 Smart Parts Impulse: NDZ Trigger, Blackheart board, Tapeworm, Evil Punch Kit. Plans for a low profile feedneck, Evil internals and respirator.