The Hatsan BullTac Gen 1 is a 20-gauge semi-automatic bullpup shotgun with an 18-inch barrel and black synthetic construction. 
 

Key Specifications 

• Model: BullTac 
• Caliber: 20 Gauge 
• Action: Semi-Auto 
• Chamber: 3" 
• Barrel Length: 18" 
• Overall Length: 27.75" 
• Capacity: 5+1 rounds 
• Weight: 6.80 lbs 
• Finish: Black synthetic stock with matte finish 
   

Features 

 
The bullpup layout puts the action behind the trigger, holding overall length to 27.75 inches with an 18-inch barrel. The aluminum upper receiver and synthetic lower keep weight at 6.80 lbs. Fixed front and adjustable rear sights are practical for quick target acquisition. The pistol grip provides control during firing, and a push-button safety covers safe storage and transport. A shell deflector routes spent cases downward. 
 

Uses 

 
The compact 27.75-inch overall length works well for home defense and any scenario requiring a short, maneuverable shotgun. The semi-auto action allows rapid follow-up shots. Also covers sport shooting and small game hunting.

The BullTac 20 Gauge Gen 1 draws appreciation for its compact form and semi-auto functionality at a price that sits below many comparable options. The black finish gets a positive mention for the modern look. Most users report satisfactory performance with standard loads.

Build quality feedback is split: some find it durable and well-constructed, others feel certain components are less refined than higher-end alternatives. Cycling reliability is generally acceptable but occasional feeding or ejection issues come up in reviews. The 20 gauge produces noticeable but manageable recoil in the light bullpup package. Beginners sometimes need time to adapt to the unconventional bullpup controls. The competitive price is the main selling point, with performance that meets expectations for the cost.