5-position Shotgun Receiver Extension w/ Storage

5-position Shotgun Receiver Extension w/ Storage Compartment (Does not include receiver adapter)

This 5-position Receiver Extension was made specifically for weapon adapters that accept a CAR15/M4 type receiver extension.

This extension features a watertight storage compartment that is accessible from the rear. The receiver extension has a MilSpec outer profile and will only accept MilSpec dimensioned buttstocks.