Hard to find item allows you to attach a standard tactical weaver rail to your composite M16 style handguard.

Weaver style rail attaches to carbine length handguard
Weight: 2.47 oz. Length: 6.0"
Includes mounting hardware

Works great on M16 handrails like the US Army Alpha Tactical. Works on other aftermarket M16 style handguards. Perfect for anyone who wants the M16 look but also needs rail space for adding RIS style grips, tactical flash lights and lasers.