Magpul MAG490-BLK SGA Buttstock Mossberg 500/590/590A1, Black Ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried and true Mossberg 500/590/590A1 12ga series of shotguns Features a spacer system for length of pull adjustment, improved grip ergonomics, recoil-reducing butt-pad, optional cheek risers for use with optics/raised sights, and other accessories Brings Magpul design and engineering to another classic American firearm Weight: 1.5 lbs (w/two Spacers installed); LOP Adjustment Range: ~12.3-14.3 inches; Width of Butt, max: 1.5 inches; Butt-Pad Dimensions: 1.5x5.0 inches Made in USA