AR1520-OPA2 Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKRock River Arms Varmint Rifle 5.56/223 20″ Heavy Barrel, RRA Operator A2 Buttstock, 20 Rd Mag $1,449.99 Original price was: $1,449.99.$913.49Current price is: $913.49. Add to cart