FN Trombone

FN "Trombone"
FN Trombone.jpg
FN "Trombone"
Place of originBelgium
Production history
DesignerJohn Browning
ManufacturerFabrique Nationale d'Herstal
No. built150,000
VariantsSee text
Mass4.4 lb (2.0 kg)
Length39+14 in (1,000 mm)
Barrel length20 in (510 mm)

Caliber.22 Short, .22 Long, .22 Long Rifle
Feed system11-round tubular magazine
Sightsdovetail front and elevation-adjustable rear

The FN Browning Trombone is a pump-action long takedown rifle designed by John M. Browning in 1919, patented on 1 August 1922 and manufactured by FN Herstal from 1922 to 1974. Models manufactured post 1969 had a product code W.

The stocks of early models were susceptible to cracking, sometimes attributed to the shape of the receiver; later models, such as the dovetail scope variant, appeared to solve this problem. The pump grip of all models is susceptible to cracking, the wood between the magazine and barrel being especially thin.

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