The Dirty Bird Industries M-LOK Arca Adapter - 4 Slot for ARCA/RRS Interface is a lightweight, machined, mil-spec hard anodized aluminum mounting plate that is designed for M-LOK slot compatible handguards and is fully compatible with tripods that use the ARCA/RRS standard. It has comfortable, yet functional, snag-resistant beveled edges. The 2 Slot M-LOK ARCA adapter limits overall travel of accessories ensures the rifle remains securely in place throughout the most rugged use and heaviest recoil impulses, making the this adapter a rugged, repeatable and precise mounting solution.COMPATIBILITY M-LOK forends and hand guards Accessories using the Arca-Swiss Standard Accessories using the RRS Dovetail StandardMade in the USABacked by the Dirty Bird Industries Lifetime Warranty