If you're looking for a qualitymade handguard for your AR-15, the Samson SXT Series Handguards are what you need. These rugged free-floating handguards offer a 7-Sided M-LOK attachment system, ambidextrous integrated QD sling point, a sleek chamfered leading edge and comes with a 2" M-LOK attachment. These handguards will not let you down.Easy to install - the simple clamping system uses two cross bolts which fit into the barrel nut for a rapid and easy installation. (The old SXS Series clamping system used a bias block on the bottom to secure the forearm to the barrel nut-which required knurling).Includes: Hex wrench, barrel nut, and barrel nut wrenchFeaturesEasy to install mount clamping systemFree float designSleek, chamfered leading edgeAmbidextrous integrated QD7-Sided M-LOK2" M-LOK Attachment