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Mobuck · January 17, 2012, 07:43 PM

I think you're missing the difference between polymer and carbon fiber construction. The PC lowers are carbon fiber which is stronger and more stable than typical polymers.
I have no doubts about the strength of the lower and NO the stock is not molded on. It uses the same threaded connection as the standard aluminum lower.
The newer PC complete lowers use synthetic fire control parts which I DO have concerns about although none I know of have failed. I've owned, assembled, and/or shot a total of 7 of the PC lowers so I do have some hands on experience with them.
I don't care for the balance when the ultralight lower is combined with a 20" or heavy weight barrel. Way too muzzle heavy.

January 17, 2012, 07:43 PM	#8
Mobuck Junior member Join Date: February 2, 2010 Posts: 6,846	I think you're missing the difference between polymer and carbon fiber construction. The PC lowers are carbon fiber which is stronger and more stable than typical polymers. I have no doubts about the strength of the lower and NO the stock is not molded on. It uses the same threaded connection as the standard aluminum lower. The newer PC complete lowers use synthetic fire control parts which I DO have concerns about although none I know of have failed. I've owned, assembled, and/or shot a total of 7 of the PC lowers so I do have some hands on experience with them. I don't care for the balance when the ultralight lower is combined with a 20" or heavy weight barrel. Way too muzzle heavy.