GunsAmerica

Quick Look

The USAS-12 is an automatic combat shotgun designed in South Korea during the 1980s. Engineered for high-capacity firepower and rapid follow-up shots, it serves specialized military and law enforcement roles. Its niche market status reflects its rarity and specific tactical use.

Why It's a Top Choice

Fully automatic 12-gauge shotgun capability
High-capacity 10- or 20-round drum magazines
Durable construction for rugged environments
Selective fire modes for versatility
Compact bullpup design for maneuverability

Key Variants

USAS-12 Standard

Original model suited for tactical teams requiring automatic shotgun firepower.

USAS-12 Tactical

Enhanced with rails and improved ergonomics for modern combat scenarios.

Competitor Comparison Table

Feature	USAS-12	AA-12	Kel-Tec KSG
MSRP	$10,000+ (varies)	$14,000+	$1,500
Capacity/Size	10/20-round drum	20-round drum	14+14 tubular magazines
Weight	10.5 lbs	10.5 lbs	6.9 lbs
Optics-Ready	Limited	Yes	Yes
Trigger Type	Selective fire	Selective fire	Pump-action
Notable Pro	High fire rate shotgun	Robust automatic system	Dual tube capacity
Notable Con	Rare and costly	Expensive and heavy	Manual cycling only

Best Use Cases

Specialized military and law enforcement operations
Breach and close quarters combat
Tactical range training for automatic shotguns
Collection of rare automatic shotguns

FAQs

Can I use standard 12-gauge shells in the USAS-12?

Yes. The USAS-12 chambers standard 12-gauge 2.75-inch and 3-inch shells suitable for various loads.

What is the magazine capacity of the USAS-12?

Standard drum magazines hold 10 or 20 rounds, supporting sustained automatic fire.

How does the USAS-12 compare to the AA-12?

Both are automatic shotguns; USAS-12 is lighter but less expensive and less common than the AA-12.

USAS 12 for Sale