Accu-Tac BR-4 G2 Bipod Flat black Type III (Mil-Spec) hard anodized 6061 T6 aircraft-grade aluminum High-strength steel hardware 100% CNC-machined billet construction 4-position legs 5-height spring-loaded locking legs Adjustable cant with lever lock Picatinny quick-detach mounting base Weight: 20oz Min. height (45 degrees): 5.5" Min./max. height (90 degrees): 6.75"/8.25" Min./max. stance: 8"/12.25" Closed position length/width: 7.5"/3.25" Designed and made in the USA Limited lifetime warranty