The Rock River Arms LAR-15M Operator ETR Carbine in 5.56x45mm NATO (MPN OP1500) is a semi-automatic AR-15 built with a 16-inch barrel and a 1:9 twist rate, paired with a 13-inch lightweight M-Lok handguard. Rock River Arms fits an extended charging handle for faster, more positive manipulation, and finishes the carbine with an RRA NSP-2 stock and a Hogue grip. The carbine feeds from a detachable magazine with a 30+1 capacity, uses an RRA Star safety selector, and ships complete with a carrying case. Among AR-platform rifles in the AR rifles category, the Operator ETR favors shooters who want an extended charging handle and a lightweight handguard from an established AR manufacturer.

Key Specifications

• Chambered in .223 Rem/5.56 NATO with a 1:9-inch twist rate.
• Features a 16-inch barrel.
• Includes a 13-inch lightweight M-Lok handguard.
• Fitted with an extended charging handle.
• Wears an RRA NSP-2 stock and Hogue grip.
• Uses an RRA Star safety selector.
• Feeds from a detachable magazine with a 30+1 capacity.
• Ships with a carrying case.
• Operates as a semi-automatic rifle.

Frequently Asked Questions

What handguard does this carbine use? A 13-inch lightweight M-Lok handguard.

Does this carbine come with a case? Yes, a carrying case is included.

Buy the Rock River Arms LAR-15M Operator ETR

An extended charging handle and a lightweight handguard from an established AR manufacturer is exactly what the Operator ETR delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.