The Rock River Arms Entry Tactical R4 (Rock River Arms part no. AR1256) is a 5.56 NATO AR-15 built as a straightforward entry point into the Rock River Arms lineup without giving up core performance. Rock River Arms chambers this carbine in .223 Remington/5.56 NATO with a 16-inch barrel finished in black, and a threaded muzzle that accepts a compensator or suppressor. An A2 front sight post gives a reliable aiming reference, and the lever-action safety allows fast, positive manipulation. This is a solid, no-frills carbine for the range, training, or home defense.

Key Specifications

• Chambered in .223 Remington/5.56 NATO.
• Barrel length is 16 inches.
• Rate of twist is 1:9 inches.
• The barrel wears a black finish.
• The muzzle uses a 1/2-28 tpi thread pattern.
• The front sight is a fixed A2-style front sight post.
• The safety selector is a lever-action design.
• Action type is semi-automatic.
• Magazine capacity is 30 rounds.

Frequently Asked Questions

Does this rifle have sights? Yes, it ships with a fixed A2 front sight.

Is the muzzle threaded? Yes, 1/2-28 tpi, ready for a compensator or suppressor.

What caliber does the R4 fire? .223 Remington/5.56 NATO.

Buy the Rock River Arms Entry Tactical R4 5.56 NATO Rifle, 16-inch

This Entry Tactical R4 is a great value in our AR rifles lineup. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.