ar 15 pistols,Rock River Arms,MT2122,5.56x45mm View cart “Rock River Arms LAR-15 Lightweight Mountain AR-15 Pistol 5.56/223 10.5″ Chrome Lined Barrel, 20 Rd Mag” has been added to your cart. 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 LAR-15 Lightweight Mountain AR-15 Pistol 5.56/223 10.5″ Chrome Lined Barrel, 20 Rd Mag $1,763.46 Original price was: $1,763.46.$1,587.11Current price is: $1,587.11. Add to cart