Western Field Model 59A (SD59A) .22LR “The Gill Gun”

Posted: 05/05/2026

Western Field Model 59A (SD59A) .22LR "The Gill Gun"

Western Field Model 59A (SD59A) .22LR “The Gill Gun”

The Western Field Model 59A is a vintage .22 LR semi-auto rifle, manufactured by Mossberg (similar to the Model 151K or 87A) for Montgomery Ward. It features a 24-inch barrel, a 10+1 round capacity, a tubular magazine (in the stock), a walnut stock, and open adjustable sights, weighing roughly 6 lbs.

Specifications:

  • Action: Semi-automatic (Blowback)
  • Caliber: .22 Long Rifle (LR) only
  • Capacity: 10+1 rounds
  • Barrel Length: 24 inches
  • Weight: Approximately 6 lbs
  • Sights: Adjustable rear leaf sight with a brass bead front sight
  • Stock: Hardwood/Plain wood stock
  • Feed System: Tubular magazine
  • Condition: Blued finish and hardwood stock