- Crafted from lightweight aircraft grade 6061 aluminum.
- Standardized design works with almost all AR-15 builds.
- Works with both quad rail and keymod handguards
- The package includes an aluminum barrel nut, castle nut, and anti-rotation set screw.
- All Monstrum Tactical AR-15 Quad Rail Handguard products are backed with a lifetime warranty.
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.
Internal diameter = 1.1"