ProMag PM242 Quad Rail 2-Piece Polymer Handguard w/Aluminum Heat Shield AR-15 Carbine

The ProMag PM242 is a 2-piece drop-in quad rail handguard purpose-built for AR-15 carbine platforms. It wraps the front of the upper receiver with a full perimeter of MIL-Spec Picatinny rail at the 12, 3, 6, and 9 o'clock positions, providing generous real estate for mounting back-up iron sights, red dots, tactical lights, vertical grips, lasers, and other accessories on a factory-style carbine-length rifle.