bored ,reamed and raceways e.d.m.edGeorge, just curious, are those receivers' machined and raceways broached or done bye EDM?
bored ,reamed and raceways e.d.m.edGeorge, just curious, are those receivers' machined and raceways broached or done bye EDM?
they are a project I started a while back, just wanted a shorter ppc or br length receiver. I will dig the bolts out tomorrow still need to cut for trigger hanger and finish grind.....one dayCan we get background info on these?

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