The Harrington & Richardson TIA is an AR-15 pattern pistol chambered in 5.56 NATO. It has a 10-inch barrel with a TIA flash hider, a black finish, and a pistol brace, and it ships with a 30-round magazine. 
 

Key Specifications 

• Brand: Harrington & Richardson 
• Model: TIA 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Capacity: 30 Rounds 
• Barrel Length: 10 inches 
• Finish: Black 
   

Detailed Features 

• The TIA flash hider caps the 10-inch barrel and is compatible with common AR-15 muzzle accessories. 
• A pistol brace is fitted for a stable, compact shooting setup. 
• The AR-style top rail allows an optic to be mounted directly to the receiver. 
• Standard AR-15 magazine compatibility means the pistol accepts widely available 5.56 NATO magazines beyond the included 30-round unit. 
• Black finish throughout for a straightforward, low-visibility look. 
• The overall package is built around AR-15 fundamentals, so operation and field stripping follow the pattern most AR-15 shooters already know.

Shooters who pick up an AR-15 pattern pistol like the TIA generally judge it against other budget-friendly braced AR pistols. Reliability tends to track with ammunition quality and a proper break-in, and most owners report the platform running well with common 5.56 NATO loads after the first few magazines.

Handling opinions vary with the 10-inch barrel length: it keeps the pistol short and easy to maneuver indoors or in a vehicle, but muzzle blast and reduced velocity compared to a rifle-length barrel are known tradeoffs owners mention. The pistol brace setup is popular for stabilizing the gun without converting it to a stock.

On value, the AR-15 platform's aftermarket is the biggest draw: optics, lights, and furniture from other AR-15 pistols and rifles typically fit without issue, so owners can build out the TIA to their preference over time rather than being locked into proprietary parts.