Cz 1020 G2 3in 20 Gauge 28" 4rd Walnut Shotgun

The CZ 1020 G2 3-inch 20-gauge shotgun brings the proven reliability of CZ's semi-auto platform to hunters and sport shooters who value a lighter, more nimble gun in the field. Built on the same inertia-driven operating system as the heavier 1012 G2 but scaled to a compact 20-gauge receiver, the 1020 G2 delivers rapid follow-up shots and quick handling without the recoil punishment of larger gauges. At 6.1 pounds, it swings like a dream in thick cover, transitions smoothly between targets, and remains manageable during a full day afield—making it ideal for upland hunters, youth shooters, and anyone who favors finesse over raw power.

The inertia bolt system is the heart of reliability here. Unlike gas-operated designs that demand meticulous cleaning, inertia shotguns simply cycle harder in response to heavier loads and softer with lighter ammunition, adapting automatically and running clean for years. The 1020 G2's reversible cross-bolt safety works intuitively for right- or left-hand shooters, and oversized controls ensure you can operate the gun in cold weather or wet conditions without fumbling. The receiver is drilled and tapped for optics, and it ships with a Weaver-style rail already mounted, opening doors to slugging or tactical setups if you ever want to pivot.

Choke flexibility is built in. Five extended CZ Active chokes (Full, Improved Modified, Modified, Improved Cylinder, and Cylinder) are included in the box, and the gun accommodates Benelli-style magazine tube extensions for versatility. The walnut furniture and bead front sight give it a classic, purposeful look that works in any hunting context. Everything arrives in a premium lockable hard case, and the included cast-on/off and drop stock shims let you fine-tune fit and point-of-impact to suit your physiology and ammunition.

Key Features

• Inertia-driven bolt system for reliable, low-maintenance cycling across a wide range of 20-gauge loads
• Lightweight 6.1-pound frame ideal for upland hunting and all-day carry
• Reversible cross-bolt safety for ambidextrous operation
• Drilled and tapped receiver with Weaver-style rail for optics mounting
• Five extended CZ Active chokes (F, IM, M, IC, C) included
• Oversized controls for reliable operation in adverse weather
• Compatible with Benelli-style magazine tube extensions
• Cast-on/off and drop stock shims for personalized fit and zero adjustment
• Walnut furniture and bead front sight
• Includes premium lockable hard gun case

Specifications

Frequently Asked Questions

What's the difference between the 1020 G2 and the 1012 G2?

Both shotguns use the same inertia-driven operating system for reliable, low-maintenance cycling. The key difference is gauge and frame size: the 1020 G2 is built on a smaller, lighter 20-gauge receiver, making it more nimble and easier to handle in the field, while the 1012 G2 is a 12-gauge. The 1020 G2 kicks less and swings faster, making it a great choice if you want semi-auto reliability without the heft and recoil of a 12-gauge.

Can I use a magazine extension on the 1020 G2?

Yes. The 1020 G2 accommodates Benelli-style magazine tube extensions, so you can increase capacity beyond the standard 4 rounds if your hunting or sport-shooting needs call for it.

What chokes are included, and can I use other chokes?

Five CZ Active extended chokes are included: Full, Improved Modified, Modified, Improved Cylinder, and Cylinder. You can swap chokes to match your load and target distance. The gun is designed to accept these extended chokes; always verify compatibility with any aftermarket choke before use.

Is the 1020 G2 suitable for left-handed shooters?

Yes. The cross-bolt safety is reversible, making the gun fully functional for left-hand shooters. The bead sight and receiver rail are centered and work equally well for either hand.