The Arisaka 17-S Bipod Mount is a minimal, low profile Picatinny mounting solution for A.R.M.S 17-S interface based accessories, such as Atlas and Magpul bipods. It can also be combined with their 17-S Harris Bipod Adapter, allowing it to work with Harris swivel bipods. If you have a KeyMod or M-Lok rail system the Arisaka Low Profile Picatinny Rails for KeyMod and M-Lok are a perfect match since they add very little additional height and use three mounting screws for maximum strength and durability.