Built this to compete in Quantified Performance GP division but stuck with 556 for commonality with my 3 gun setup. This is a complete SOLGW Upper and M89 15” drive lock rail mated with a Proof Research 16” Steel 6 ARC Barrel. It’s using a BCM charging handle, Wilson Combat Nickel Boron bolt carrier, and Noveske 6 ARC bolt. I have a bnib JP 6 Arc bolt to go with. I fired about 150 rounds through the upper with Hornady Factory 105s and 108s. I consistently got groups into .6 MOA. Never ran the barrel super hot or suppressed. Decided not to use the caliber for gas guns and wanted to clear space in the safe.
Entire setup plus spare JP bolt: $1k shipped
Do not want to split spare bolt unless buyer for upper doesn’t want it. Not looking for trades at the moment
Entire setup plus spare JP bolt: $1k shipped
Do not want to split spare bolt unless buyer for upper doesn’t want it. Not looking for trades at the moment
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