The Alexander Arms AR-15 Pistol is a semi-automatic pistol-configuration AR in 6.5 Grendel with an 11-inch barrel. It holds 10 rounds and has a black finish. As a pistol-configuration AR, it does not have a rifle stock. 
 

Key Specifications 

• Brand: Alexander Arms 
• Caliber: 6.5 Grendel 
• Action: Semi Auto 
• Barrel Length: 11 in 
• Capacity: 10 rounds 
• Color/Finish: Black 
   

Detailed Features 

• AR-15 pistol configuration (no rifle stock) 
• 11-inch barrel in 6.5 Grendel 
• 10-round magazine 
• Black finish

Owners of the Alexander Arms 6.5 Grendel AR pistol tend to focus on the caliber as the primary reason for the purchase. The 6.5 Grendel in an 11-inch barrel retains substantially more downrange performance than 5.56 at the same length, and that trade-off is the central appeal for buyers who want a compact AR that punches harder at distance.

Build quality comments on Alexander Arms products are generally positive, with the brand credited for developing and refining the 6.5 Grendel platform. The 10-round magazine capacity draws some criticism from those who want higher-capacity options, though some note that third-party Grendel magazines are available and compatible depending on the specific magazine well.

The pistol configuration is appreciated for its legal flexibility, though owners note that adding a brace or stock changes its legal status and requires attention to current ATF regulations. The compact format makes it practical for vehicle storage or range use where a full-length rifle would be inconvenient.