Direct replacement handguard featuring simple ''drop in'' design For most mid-length gas system, non-free float carbine-type platforms The PMCR - Mid-Length will only fit the M16A1 ''Triangular'' front handguard retaining cap Natural ergonomics; slim, comfortable and lightweight, only 5.8 ounces Aggressive textured area for needed traction Three, four-hole M-LOK compatible mounting slots, mounting surfaces (10:30, 1:30, and 6:00 o'clock placements) Aluminum heat shield, lessening heat transfer to the handguard and shooter's hand Made of an impact and temperature resistant high strength polymer