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SOLD WTS: 16” Proof Stainless Upper (Superlative Arms piston setup)

Usmcsomerville

USMC Vet
Supporter
Full Member
Minuteman
  • Nov 21, 2017
    1,055
    287
    40
    Brighton, MI
    Built this for a coyote rifle. Ended up just using my bolt gun. All parts are new and were assembled by a gunsmith. I did a barrel break in and then haven't shot it since. It was shooting .68" groups with match ammo.


    Specs:
    - 16" Proof Research stainless match barrel (1:8 223 Wylde)
    - Mega upper
    - Superlative arms piston kit (gas block, BCG, etc)
    - JP bolt (Proof barrels are headspace's to JP bolts)
    - Radian charging handle
    - Keymo muzzle brake
    - Midwest Industries handguard (this has a perfect clearance for the piston rod setup.
    - Mlok grip panels and vfg

    Everything cost me approx $1500. The SA piston setup is extremely smooth, soft shooting and keeps everything really clean.

    asking $900 shipped

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