The Battle Arms Development Tanker is an AR-pattern pistol chambered in .300 Blackout with a 7.5-inch barrel and a pistol brace. It ships with a 20-round magazine and is configured as a pistol for short-barrel use; transfer requires no additional federal paperwork beyond a standard 4473. 
 

Key Specifications 

• Brand: Battle Arms Development 
• Model: Tanker 
• Caliber: .300 Blackout 
• Action: Semi Auto 
• Capacity: 20+1 
• Barrel Length: 7.5 in 
   

Detailed Features 

• 7.5-inch barrel optimized for .300 Blackout ballistics at pistol-length 
• Ships with 20-round magazine 
• Pistol brace included 
• AR-pattern platform in a compact pistol configuration

Owners of the Battle Arms Development Tanker appreciate its compact footprint and the pairing of .300 Blackout with a 7.5-inch barrel, which keeps muzzle energy reasonable for a pistol-length build. The brace setup draws positive comments for adding stability without adding overall length.

The trigger and fit-and-finish get mixed reviews. Some owners find the trigger acceptable out of the box; others swap it early. Build quality is generally regarded as solid for the price bracket, though a few buyers note tight tolerances that require a break-in period.

Value opinion splits based on use case. Buyers who wanted a suppressor-ready .300 Blackout platform in pistol form see it as a practical pick. Those comparing it to budget AR pistols sometimes question the premium, but acknowledge the Tanker name carries a reputation for tighter quality control than generic builds.