THE A400 XTREME PLUS A400 XTREME PLUS FIRST LITE CACHE semi-automatic shotguns feature Berettas exclusive Steelium Plus barrels for reduced felt recoil, as well as a step rib and enlarged controls for easier manipulation inall weather condition. Kick-Off Mega is the most powerful recoil reduction system available today. The hydraulic shock absorbers act to reduce perceived recoil and muzzle jump. The B-Link gas operation system uses the precision of a rotating bolt, ensuring a fast and reliable cycling system. Capable of cycling the lightest target loads and the heaviest 3.5 hunting loads.