M4S1 Three picatinny hand guard rails system

A polymer Rail system with a unique ergonomic design that includes bottom and side rails which are detachable.

• A secure platform is provided for the addition of Picatinny accessories.
• 11 cm bottom rail and 5cm side rail.
• Addition of an aluminum upper rail which is attached to the original flat top rail is optional.
• Sling swivel inserts are included.
• 3 Total Rails