Like a classic car, half of the fun of an AR-type platform is the build. Understanding this, BLACKHAWK! offers a two-piece quad rail forend that easily attaches to your weapon without requiring any modification. Six screws secure the interlocking halves for a slim profile. The two-piece Quad Rail also offers limited-rotation push-button sling swivel attachment points on left and right sides, while the unique vent hole design helps dissipate heat and reduce weight. MSRP $205.