On Jan 10, 1:56*pm, "Pete C." wrote:
wrote:

I just buy the 30% lowers from Tactical Machining. Proper broached
magwell and not much else done on them. Costs like $15 more than 0%
forgings.

At the risk of perpetuating and OT ramble to my post, what are 0% and
30% castings?

Dave