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Rainier Arms Urban Carbine RUC

Darrion from Praetor showing off the Rainier Arms Urban Carbine RUC. Rainier Arms Urban Carbine RUC Specs: 16″ Standard or Lightweight Cold Hammer Forged 5.56mm Barrel Extended M4 Feed Ramps MPI HP tested Bolt Auto carrier with properly staked carrier key 1 in 7″ twist Mil Spec Phosphate finish Mid length gas system 1⁄2×28 threads Pinned …

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