ArmaLite M-15 DEF15 DSR | 5.56 NATO | 16 in

The ArmaLite M-15 DEF15 DSR is a lightweight, semi-automatic sporting rifle chambered for .223 Rem/5.56 NATO designed for modularity and straightforward accessory mounting. It pairs a 16 inch chrome-moly-vanadium, chrome-lined barrel with forged 7075-T6 aluminum receivers finished in hardcoat anodize for durability and corrosion resistance. The rifle ships with a 30-round Magpul PMAG and a 6-position collapsible synthetic stock, and features a flattop MIL-STD 1913 rail for optics and accessories. For an optic under $1,000 that complements this platform, consider a 1-6x variable such as the Vortex Strike Eagle 1-6×24 for fast target acquisition and close-to-mid range versatility.

Product Specifications

• The manufacturer is listed as ArmaLite.
• The model name is M-15 DEF15 DSR.
• The caliber is specified as .223 REM/5.56 NATO.
• The capacity is 30 + 1 rounds.
• The barrel length is 16 inches.
• The barrel material is Chrome Moly Vanadium.
• The rate of twist is 1:7.
• The overall length is listed as 32 to 35.30 inches.
• The unloaded weight is 6.10 lbs.
• The receiver material is 7075-T6 Aluminum with an anodized finish.
• The finish type is Black Hardcoat Anodized.
• The stock is a 6 position collapsible synthetic design.
• The trigger is a single-stage trigger.
• The firearm is configured as optic ready with a MIL-STD 1913 rail and railed gas block front sight base.
• The UPC is 651984014240.

This rifle is well suited for range training and competitive shooting where reliable, configurable performance and accessory compatibility matter. The combination of a chrome-lined 16 inch barrel, forged 7075 receivers and a flattop rail makes the platform adaptable for optics, lights, and other accessories without excess weight. If you value a no-nonsense, serviceable AR platform that accepts common magazines and upgrades, the DEF15 DSR is built to integrate into a practical, performance-focused setup.