CAA M4S1 Polymer AR-15/M4 Handguard

Upgrade your AR-15/M4 rifle in minutes. No vise, no gunsmith. The CAA M4S1 is a two piece, drop in handguard that replaces the GI carbine fore-end and gives you full length 12 o’clock rail plus removable 3, 6 and 9 o’clock rails for lights, grips or lasers.

• Molded from glass-fiber-reinforced polymer with embedded aluminum heat shields; runs cooler and lighter than all-metal quads.

• Fits any milspec Delta-ring & handguard cap setup (16" carbine, SBR, pistol uppers).

• Top rail mates flush with flattop receivers for one continuous optics plane.

• Side/bottom rails bolt on/off (Torx screws included) so you can slim the handguard when rails aren’t needed.

• Length: 6.75" • Width: 2.4" rail-to-rail • Weight: 11.3 oz (with all rails installed).

• Integral QD sling swivel sockets on both sides, plus ventilated slots for maximum barrel cooling.

Made in Israel, the M4S1 brings modern accessory space and rock solid zero retention to any standard front sight AR without the weight or price of an aluminum free-float.