The Alexander Arms RST17 Standard 17 HMR pairs the familiar AR-15 layout with a purpose-built rimfire system for precise, low-recoil shooting. Built around an 18" fluted barrel with 1/2-28 threading and an A2 flash hider, this modern sporting rifle uses a blowback operating system and a black hard coat anodized receiver topped with a full-length Picatinny rail for optics-ready versatility.

This model is chambered in 17 HMR and configured with a synthetic EFX stock, A2 grip, and LAR Alexander Arms branded handguard to provide a stable, comfortable interface on the range or in small-game hunting roles. The semi-automatic action, 10-round detachable magazine, and 7.5 lb overall weight make it easy to run through training drills or casual target sessions while enjoying the accuracy benefits of the straight-fluted barrel. Alexander Arms’ attention to detail and engineering in the RST17 platform delivers a refined rimfire AR experience backed by the company’s reputation for innovative specialty calibers.

Key Features:

• Manufacturer: Alexander Arms
• Model: RST17 Standard
• Caliber: 17 HMR
• Condition: New
• Action: Semi-Auto
• Barrel Length: 18" Fluted
• Number of Magazines: 2
• Capacity: 10
• Threaded Barrel: Yes, 1/2-28
• Weight: 7.5 lbs
• Length: 37"–38.9" (approximate overall length range from listed specs)