A smooth-bore barrel semi-automatic shotgun include a frame comprising a breech. A barrel is slidingly mounted on the frame relative to the breech. A slide-bolt assembly, which slides relative to the breech, is adapted to close the barrel. A friction spring opposes the barrel's sliding movement relative to the frame.

 
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< Gun barrel assembly

< Ambidextrous charging handle for firearm

> Firearm grip, particularly of a gun

> Quick coupling particularly for the stock of a portable weapon
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