AR0900B View cart “Rock River Arms LAR-15 AR-15 5.56 Complete Lower Half / Standard Trigger / A2 Buttstock” 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 AR-15 5.56 Complete Lower Half / Standard Trigger / A2 Buttstock $344.99 Original price was: $344.99.$310.49Current price is: $310.49. Add to cart