The Rock River Arms Mid A4 in .308 Win/7.62 NATO (brand part no. 308A1239) is a semi-automatic AR-platform rifle built around a 16-inch barrel, giving shooters the reach of .308 in an AR-10-pattern platform. Rock River Arms builds every rifle to the durability and quality standard the company is known for, so it holds up when reliability matters most. The Mid A4 is finished in black. Among AR-platform rifles in the AR rifles category, the Mid A4 favors shooters who want a straightforward .308 AR-pattern rifle.

Key Specifications

• Chambered in .308 Win/7.62 NATO.
• Operates as a semi-automatic AR-platform rifle.
• Features a 16-inch barrel.
• Feeds from a magazine with a 20-round capacity.
• Part of the Mid A4 model line.
• Finished in black.
• Fitted with a mid-length handguard over a chrome-moly barrel rifled at a 1-in-10 twist.
• Runs RRA’s two-stage Ultra Match trigger for a crisp, consistent pull.
• Built on forged RRA LAR-8 lower and A4 upper receivers.

Frequently Asked Questions

What cartridge does this rifle use? .308 Winchester/7.62 NATO.

What is the magazine capacity? A 20-round magazine.

Buy the Rock River Arms Mid A4 .308 Win

A straightforward, reliable .308 AR-pattern rifle is exactly what the Mid A4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.