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The ATLAS S-ONE M-LOK free-floating slim line handguards for the AR-15 are made from 6061-T6 aluminum and have been designed to be lightweight. The handguards are slim yet strong and stable. The Aero Taper Lock Attachment System (ATLAS) is used for these handguards, which is both functional and visually appealing. It uses two mirrored tapered locking nuts allowing even clamping pressure to be distributed across a custom barrel nut with a turnbuckle screw. The handguards are available in Black and FDE, and come in varying lengths of 7" - 7.25", 9" - 9.19", 12" - 12.56", and 15" - 14.94". They also include a front and rear picatinny rail, indexing grooves in the 12 o'clock position for positive grip control, with a reduced weight by eliminating the center of top rail. The handguards have a 1.3” I.D. and a 1.5” O.D. Aero Precision rail lengths are measure from end to end, meaning it starts from the point of contact at the receiver to the end of the last picatinny slot at the muzzle. All the required mounting hardware is included with the AR-15 ATLAS S-ONE slim line handguards.