The Alexander Arms RTA65ST Tactical 6.5 Grendel rifle brings AR-15 familiarity to a purpose-built modern sporting platform. Built on a black anodized aluminum receiver with a full-length Picatinny rail, it pairs a 16" threaded barrel with an M-LOK handguard and B5 Systems SOPMOD Bravo collapsible stock for a balanced mix of control, accuracy, and modularity. A standard A2 grip, Mil-Spec trigger, and A2 flash hider round out a straightforward, dependable configuration.

This 6.5 Grendel chambering offers extended-range performance with manageable recoil, making the RTA65ST well suited for range work, training, and general sporting use where precision and consistency matter. The thumb safety and clean semi-auto operation support confident handling, while the adjustable stock helps different shooters achieve a comfortable fit. Backed by Alexander Arms’ reputation for innovation in the 6.5 Grendel platform, this rifle is designed for shooters who appreciate thoughtful engineering and reliable craftsmanship.

Key Features:

• Manufacturer: Alexander Arms
• Model: RTA65ST Tactical 6.5 Grendel
• Caliber: 6.5mm Grendel
• Condition: New
• Action: Semi-Auto
• Barrel Length: 16" Threaded
• Capacity: 10+1
• External Safety: Thumb Safety
• Threaded Barrel: Yes
• Weight: 6 lbs
• Length: 37"–39.15" (approximate, per listed specs)