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mechdriver · January 27, 2008, 08:07 PM

I looked at one installed on an M4 at a recent gunshow. It appeared to lock up tight as I couldn't twist it with the forward grip. I can't speak to durability.
That said, I have a knights armament on mine.

January 27, 2008, 08:07 PM	#8
mechdriver Member Join Date: June 14, 2006 Location: NC Posts: 44	I looked at one installed on an M4 at a recent gunshow. It appeared to lock up tight as I couldn't twist it with the forward grip. I can't speak to durability. That said, I have a knights armament on mine.