The Rock River Arms R3 Competition Rifle in .223 Rem/5.56 NATO (MPN AR1705) is a semi-automatic AR-15 built with competition shooters in mind, pairing an 18-inch barrel with a flat-top, optics-ready receiver. Rock River Arms fits a manual safety and leaves the rifle ready for the buyer’s choice of optic, feeding from a detachable 30-round magazine. Among AR-platform rifles in the AR rifles category, the R3 Competition favors 3-gun and competition shooters who want an 18-inch barrel with a full 30-round capacity.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• Features an 18-inch fluted stainless steel barrel, cryogenically treated for accuracy and heat resistance.
• Rifled with a 1:8-inch twist rate.
• Threaded muzzle is capped with a directionally tuned, ported muzzle brake.
• Ships optic-ready on a flat-top receiver.
• Includes a manual safety.
• Built on a forged 7075-T6 aluminum receiver set.
• Fitted with a free-floating handguard for unobstructed accessory mounting.
• Runs RRA’s National Match two-stage trigger, breaking at 4.5 to 5 pounds.
• Wears an Operator A2 fixed stock.
• Feeds from a detachable 30-round magazine.

Frequently Asked Questions

Does this rifle come with sights? No, it ships optic-ready on a flat-top receiver.

What magazine capacity does this rifle ship with? A 30-round magazine.

Buy the Rock River Arms R3 Competition Rifle

An 18-inch barrel with a full 30-round capacity is exactly what the R3 Competition delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.