The KPM Mounting System (KPM) is a modular mounting system that includes all the hardware and tools for mounting the KPM Bipod to KeyMod slots, Picatinny rails, and M-LOK slots. The bipod legs can be mounted directly to side Picatinny rails on either side of a handguard. There are two included Picatinny rail sections that can be mounted to KeyMod(TM) or M-LOKA(R) slots of a handguard. The side bipod legs can then be mounted to the Picatinny accessory rails. Spring loaded notched bipod legs allow you to quickly deploy the bipod legs at many different lengths. Bipod legs adjust to lengths from 8.5 to 11.0 inches. The rubber bipod feet also provide traction on hard and smooth surfaces. Brand: Vism Includes: 2 Foldable Adjustable Bipod Legs Materials: 6061 Aircraft Grade Aluminum. Compatibility: Rifles with M-LOK, Keymod, and Picatinny systems. Weight: 2.7oz each Length: 8.5" to 11" Color: Black