Attach the supplied nozzle to a dry‑air source and fill the 500 cc cylinder up to 250 bar. Insert the appropriate 5.5 mm pellet or slug into the magazine, close the bolt, and set the safety lever to "safe". Aim using the Picatinny‑mounted optic or iron sights, release the safety, and fire with a controlled pull of the adjustable two‑stage trigger. After shooting, monitor the pressure gauge and refill the cylinder when necessary.
Handle the tool as if it is loaded at all times. Keep the muzzle pointed in a safe direction. Wear proper eye and ear protection. Engage the manual safety when the tool is not in use. Use only dry air for charging to avoid moisture damage. Store the unloaded tool securely out of reach of children and unauthorized individuals.
The Air Boss KR4 is a pre‑charged pneumatic (PCP) defense tool designed for precision shooting and hunting. It features a sleek, ergonomic design with a synthetic stock and a red barrel, providing both aesthetic appeal and durability.
Legal Notice: For lawful use only. Not intended to harm. Follow local regulations. Keep away from children. Use responsibly.
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