FITS MOSSBERG® 12 OR 20 GA... 500, 835, 590, MAVERICK 88. DOES NOT FIT THE 500 FLEX PLATFORM... The Phoenix Technology KickLite™ 6 position stocks for shotguns and rifles are designed and engineered to absorb up to 50% of normal recoil. The felt impact is significantly reduced, allowing for quicker follow-up shots, reduced fatigue, and improved accuracy. The patented KickLite™ system is a fully integrated and maintenance-free system composed of an aluminum shaft and heavy duty spring that fits into the commercial spec tube. It’s made in the USA and guaranteed for Life.