Monstrum - AR-15 M-LOK Rail Handguard - 4 inch | Free Float - Series D - Black

Our 4 inch M-LOK, free float installs on standard mid length AR-15 rifles and the universal M-LOK rail platform accepts all standard M-LOK accessories. The free float handguard attaches directly to the receiver, without touching the barrel or impacting barrel harmonics, thus allowing for more precise shooting. Available in black.

Note that the aluminum barrel nut is significantly lighter than steel barrel nuts, however it may be subject to damage during installation. We recommend using no more than 35 pounds of torque during installation.

Please note that installation of a free float handguard requires additional gunsmithing tools and expertise. For questions regarding fitment or installation, please refer to our AR-15 quad rail guides and installation guides.

• Includes: M-LOK, free float handguard, aluminum barrel nut, Allen wrench, and two 3 Inch/7 Slot M-LOK Picatinny Rails.
• Materials: 6061 Aluminum Alloy
• Compatibility: Not Compatible with Bushmaster Carbon 15 rifles serial number E18000+ unless Bushmaster barrel nut is used.
• Weight: 4.2 oz
  
• Length: 4 in
• Height: 2 in
• Internal Diameter: 1.3 in
• Color: Black
• Warranty: Lifetime