NcSTAR Compact Friction Rifle BipodThe NcSTAR Compact Friction Rifle Bipod. Fits on most guns! Requires either a bipod stud (found on sniper rifles) or a bottom standard rail to mount onto. Can also mount onto a barrel as a last resort (all adapters are included in the box). If you want a bipod for your rifle, this is a great one to get! Precision Grade Bipod Compact Model 5. 5" 8. 0" with Smooth Tension Legs Height: 5. 5" Collapsed Height: 8. 0 Fully Extended Bipod directly mounts