Mossberg SA-20 Tactical Semi Auto Shotgun


Type Shotgun
Place of origin United States
Service history
In service 1987–present
Used by See Users
  • Gulf War
  • Iraq War
  • War in Afghanistan (2001-2021)
Production history
Designer Carl Benson
Designed 1961
Manufacturer O.F. Mossberg & Sons
Produced 1961–present
No. built 11,000,000
Mass 7 lb (3.2 kg) to 7.75 lb (3.52 kg)
Length 36.12 in (91.7 cm) to 41 in (100 cm)
Barrel length 18.5 in (47 cm) to 20 in (51 cm)

Caliber 12 gauge, 20 gauge, and .410 bore
Action Pump action
Feed system 6+1 to 8+1 rounds; internal tube magazine
Sights Bead or ghost ring iron sights


Mossberg SA-20 Tactical Semi Auto Shotgun Online

Mossberg SA-20 Tactical semi auto shotgun in 20ga. Features a 20″ barrel with cylinder bore, 3″ chamber, matte black finish, picatinney rail on top with ghost ring rear sight and fiber optic front sight, 4+1 capacity, and black synthetic stock with 12.5″ LOP and a pistol grip. New, Per Mossberg, for use with US made 1oz shells by Win, Rem, & Federal.

The Mossberg 500 (M500) is a series of pump action shotguns manufactured by O.F. Mossberg & Sons. The 500 series comprises widely varying models of hammerless repeaters, all of which share the same basic receiver and action, but differ in bore size, barrel length, choke options, magazine capacity, stock and forearm materials. Model numbers included in the 500 series are the 500, 505, 510, 535, and 590. The Revelation 310 and the New Haven 600 were also variations of the 500 series produced by Mossberg under different names. By 2021, 11,000,000 M500s had been produced, making it the most-produced shotgun of all time. tko carts


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