Rock River Arms LAR-15M BLK1700DS .300 AAC Blackout 16″

About this product

The Rock River Arms LAR-15M BLK1700DS is a semi-automatic tactical rifle built on an extruded aluminum A4 upper receiver that includes a port door and omits a forward assist. It features a 16″ threaded barrel, a 15″ free-float M-LOK handguard, and an RRA single-stage trigger for consistent follow-up shots. The rifle ships with an A2 flash hider, a polymer magazine, manual, and warranty information.

Key Specifications

• Chambered in .300 AAC Blackout.
• Operates as a Semi-Auto rifle.
• The barrel measures 16″ and is threaded.
• The rifling has a rate of twist of 1:8″.
• Weighs approximately 6.70 lbs.
• Magazine capacity is 30 + 1.
• Equipped with an RRA 6 Position Tactical stock.
• Features an RRA single stage trigger.
• Includes an extruded aluminum A4 upper receiver and a 15″ free-float M-LOK handguard.
• Finished in Blued/Black and includes a polymer magazine, manual, and warranty information.

Designed for shooters who value solid construction and practical versatility, the LAR-15M BLK1700DS pairs a familiar AR-style ergonomics with the .300 AAC Blackout cartridge and a compact 16″ threaded barrel. Its combination of a free-float M-LOK handguard, adjustable stock, and manageable weight makes it well suited for range use, hunting applications where this cartridge is appropriate, and general-purpose shooting where reliability and modularity matter.