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Daewoo USAS-12



Overview


USAS-12

USAS-12 automatic shotgun with 10 round box magazine.
Source: Oleg Volk - © GNU Attribution - Share Alike license

Origin
South Korea
Type
Shotgun
Entered service
Early 1990's
Status
In service
Development
1989
Developer
South Korea - Daewoo
Production
Early 1990's - present
Producer
South Korea - Daewoo
Number produced
Over 30.000 by the mid-1990's

Description


Introduction

The USAS-12 is an automatic shotgun of South Korean origin. The basic design stems from the 1980's automatic shotgun designs by Maxwell Atchisson. Although semi-automatic shotguns are common in military and law enforcement use automatic shotguns are a niche market. Within that niche market the USAS-12 is one of the most common and successful models.

Design

The USAS-12 is based on the design of the original AA-12 shotgun but has been extensively modified and looks more similar to the new generation Auto Assault-12 shotgun. The USAS-12 is a large and bulky weapon. The thick plastic forearm houses the gas piston and the large plastic stock houses the bolt and spring. The USAS-12 is magazine fed and the carrying handle also serves as the rear sight base.

Firepower

The USAS-12 fires standard 12ga 2.75-inch shotgun shells. The USAS-12 uses 10 round curved box magazines or 20 round drum magazines. It may fire either semi-automatic or fully automatic at a rate of fire of 360 rpm. Due to its weight the recoil is limited but automatic fire cannot be considered accurate. The effective range is quoted as 40 meters, but depends on the ammunition type used.

Users

The USAS-12 has been mainly sold to civilians and private security companies. Military use of the USAS-12 is limited although it has been sold to various armies and special units in Asia.

Details


Facts USAS-12
General
Origin
South Korea
Type
Shotgun
Caliber
Caliber
12ga 2.75"
Feed system
10 round detachable box
20 round drum magazine
Barrel length
460 mm
Rifling
Smoothbore
Operation
Action
Gas operated, gas piston, open bolt
Fire selector
0 - 1 - F
Rate of fire
360 rpm
Dimensions
Stock type
Fixed
Length
960 mm
Weight
5.45 kg empty
6.2 kg with 10 rd magazine
Sights
Mechanical
Iron sights

Media