Butt is mounted by massive bolt inside.
  Zbrojovka Brno with barrel safety
Technical Specifications
Overall Lenght 1 050 mm
Manufacturer Zbrojovka Brno
Barrel Lenght 415 mm Type piston with break barrel
Sight Radius 390 mm Manufactured Pieces not available
Weight 2,5 kg Production Period 195x
Caliber 4,5 mm

Rear Sight Side View
Rear Sight Top View
Front Sight
Trigger and Trigger Guard

Barrel is locked by with safety on the left side of cylinder. There is an old variant of stock on the picture - barrel safety is fully covered by stock on the opposite side. Stocks by this variant of airguns have been often damaged in this place. There is a cutout milled in this place by newer variant of this airgun.