The Radikal NK-1 is a gas-operated semi-automatic shotgun in 12 gauge with a 20-inch barrel and a 5-round capacity. Black finish. At 20 inches of barrel, it's compact enough for home defense work while still handling hunting and range use without issue. 
 

Key Specifications 

• UPC: 787790272144 
• Action: Semi Automatic 
• Barrel Length: 20 inches 
• Capacity: 5 rounds 
• Finish: Black 
• Gauge: 12 GA 
   

Detailed Features 

 
The gas-operated action cycles quickly and softens felt recoil compared to inertia-driven designs. The 20-inch barrel gives you a manageable overall length without giving up too much on patterning distance. Five rounds on tap is standard for this class.

The Radikal NK-1 draws fairly consistent feedback across user discussions.

The main selling point that comes up repeatedly is price. The NK-1 is positioned below most major-brand semi-auto shotguns, and budget-conscious buyers consistently note that it delivers reliable cycling and solid construction at that price point. Build quality gets decent marks. The materials feel solid and the controls are straightforward, which gets mentioned as a plus for both new and experienced shooters.

Versatility comes up often too. Owners use it for home defense, bird hunting, and range work, and most find it handles the transitions without issue. The semi-auto action and manageable recoil are cited positively for extended sessions.

Criticism is scattered but includes a few threads on recoil management, some shooters would like more built-in recoil reduction, and aesthetic preferences, since the black finish and utilitarian look don't appeal to everyone. Customer service experiences vary noticeably; some owners report smooth warranty interactions while others describe more difficulty getting issues resolved.