Also called: forend, forearm, foregrip. drop in

The handguard on an AR-15 is located over the barrel of the rifle. It can come in a variety of lengths (usually 7″, 9″, 12″, 13″, 15″, and 17″), are available in drop-in or free float, can be made from a variety of materials (polymer, aluminum, and carbon fiber to name a few).

Some handguards require very few tools and know-how, while others require more extensive knowledge of AR modification and tools.

Most free-floating handguards will require a barrel nut and barrel nut wrench for float

Drop in handguards will require a delta ring assembly, end cap, and either a rail-height gas block or fixed A2 front sight post.