IMI Defense™ Aluminum OTS™ Full Rail M-Lok® Carbine Handguard for M16/M4

Upgrade your M4 / M16 / AR15 low profile gas block Drop-In rifle with the IMI Defense™ OTS™-Full Rail Handguard, a rugged tactical rail system engineered for mission-ready performance. Machined from high-grade 6061 aircraft aluminum, this handguard with M-Lok® slots in 9, 3 & 6 O’clock, enhances your weapon’s modularity, strength, and ergonomics.
Designed for professional use by military, law enforcement, and professional shooters.
Optimized for Performance, Built for Durability – 
The two-piece Clamshell Drop-In design allows for quick installation over low profile gas blocks, while extended length ensures enhanced grip and accessory space, and retaining the clean, free-float style that professionals prefer for modern tactical setups. Full-length Picatinny top rail gives you maximum flexibility for mounting optics, lights, lasers, grips, or foregrips, making this handguard system ideal for any tactical setup.