13-inch free-float AR-15 M-LOK handguard with a full-length top rail and a billet steel barrel nut.

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Next Level Armament machines its AR-15 M-LOK handguards in house from aluminum extrusions and hard coat anodizes them to mil-spec tolerances. A solid billet steel barrel nut anchors the handguard to the upper receiver, and the profile is styled to match Next Level's NLX556 receivers, including the scallop along the top of its forged upper.
This 13-inch version has M-LOK slots on both sides and the bottom and a continuous Picatinny rail across the top. The inner diameter is 1.4 inches, so check clearance for an oversized gas block. Next Level sells the same handguard in 4.5, 7, 9, 10.25, 13, and 15 inch lengths.

Next Level Armament
Next Level Armament NLA AR-15 M-LOK Handguard, 4.5 in
$115

Next Level Armament
Next Level Armament NLA AR-15 M-LOK Handguard, 7 in
$119
Next Level Armament
Next Level Armament NLA AR-15 M-LOK Handguard, 9 in
$130

Next Level Armament
Next Level Armament NLA AR-15 M-LOK Handguard, 10.25 in
$130
Add the Next Level Armament NLA AR-15 M-LOK Handguard, 13 in to your build and see how it enhances your platform.