The A2 Delta Ring Assembly retains standard two-piece drop-in handguards on an AR-15 with a standard barrel nut. The spring-loaded delta ring seats and releases the handguard caps, so you can swap or remove drop-in handguards without tools. Use it to replace a worn or weak delta ring that no longer holds the handguards tight. Features: Three-piece set: delta ring, weld spring, and snap ring Retains standard two-piece drop-in AR-15 handguards Spring-loaded ring seats and releases the handguard caps Fits a standard AR-15 barrel nut Direct replacement for a worn or weak factory delta ring This assembly is for two-piece drop-in handguards, not free-float handguards. It does not include a barrel nut. Confirm your rifle uses standard drop-in handguards before ordering.