Amazon.com : Picatinny Rail Adapter Converter Compatible to M Lok - 2 Slots : Sports & Outdoors
M-LOK to Picatinny Adapter Rail KIT (BLUE) for MLOK Handguard Rails - 2 x 5 slot, 1 x 7 slot | team15tactical.com for AR accessories, handguards, .223 .556 .308