KRISS USA firearms are precision engineered to operate with specific ammunition parameters. It is up to the user to ensure that the ammunition used with KRISS USA firearms fall within the required specifications. Only use new, high quality, commercially manufactured ammunition of the correct caliber with internal ballistic pressures which are in strict accordance with the specifications of the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) or are Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives (CIP) certified. NEVER use non-standard, reloaded, or "handloaded" ammunition which has not been subjected to internal ballistic pressure testing.
Ammunition that has not been commercially manufactured cannot be guaranteed to meet KRISS USA firearm operation parameters and may have many other manufacturing and quality variables. Ammunition that has been improperly manufactured may fail to fire or may stress the firearm to a point that excessive internal pressures are generated which can damage or even rupture the firearm, causing personal injury to the shooter or those in the immediate vicinity. The use of any "handloaded," remanufactured, or otherwise "out-of-spec" ammunition will void your warranty.
Using aluminum or steel-cased ammunition is not recommended.
Ensure that your ammunition is free of defects, dirt, debris, lubrication, or anything that may cause malfunctions.