Leapers UTG constructed these bipods are constructed of high tech durable aluminum with steel top platforms and designed them tactical shooting. To let them be used for any purpose they bipod includes both a Picatinny and swivel stud mount to accommodate almost every type of rifle. With fully adjustable legs adjustments for height is simple and they have non slip rubber feet to keep you stable. Retract instantly with the quick retraction buttons, and lock out of the way with spring tension when not in use. And if needed a quick release lever will detach the bipod from the firearm. Features : Black finish Fits picatinny or Weaver rail "8"-12.4" adjustment" Quick release lever Fully adjustable leg w/7 extension notches