Armalite | ARMA AR-10 6.5 Grendel | 20 Barrel

The Armalite ARMA AR-10 in 6.5 Grendel is a purpose-built tactical AR-10 platform combining a free-floating M-LOK handguard, a two-stage precision trigger, and an adjustable MBA-1 precision stock for adaptable ergonomics. Controls are ambidextrous and the upper/lower receivers are forged from 7075-T6 aluminum for service-grade durability. For optics, a Vortex Viper PST Gen II 2.5-10×44 (commonly available under $1000) pairs well with this rifle for medium-range precision work.

Applications: precision shooting and competition/practical shooting.

Product Specifications

• The attachment method is M-LOK.
• The product line is AR-10.
• The product category is Tactical.
• The caliber is 6.5 Grendel.
• The barrel is described as HB SST Triple Lapped.
• The barrel length is 20 (unit not specified in source data).
• The muzzle device is a Flash Suppressing Compensator.
• The front sight base is a Full-Length MIL-STD 1913 Rail.
• The handguard is a 15 Free-Floating Tactical design.
• The stock is a MBA-1 Light Weight Precision Adjustable model.
• The upper receiver is Forged Flat-Top with MIL-STD 1913 Rail 7075-T6 Aluminum.
• The lower receiver is Forged 7075-T6 Aluminum.
• The safety is Ambidextrous.
• The trigger is a Two Stage Precision trigger.
• The charging handle is Raptor Ambidextrous.
• The finish is Hard Anodized Aluminum Manganese Phosphated Steel.
• The overall length is 42.3 Collapsed / 43.3 Extended (units not specified in source data).
• Included with the rifle: One 25-Round Magpul PMAG, Magpul MBUS, Owner’s Manual.
• The UPC is 651948700440.

This ARMA AR-10 presents a deliberate, precision-oriented platform with components selected for controllability and adaptability. The free-floating handguard and two-stage trigger support accurate follow-up shots, while the MBA-1 stock allows shooters to tailor fit for comfort and consistency. Whether building a match-oriented setup or equipping a rifle for precision work at extended ranges, this AR-10 offers a solid foundation for quality optics and accessories.