M4 Commando Open St Weighted:No It is used with 9

It is used with 9 to 13 mm diameter low stretch kernmantel ropes on one rope strand and can be used on two strands (8 to 11 mm low stretch kernmantel ropes) to facilitate long descents of over 80 meters

Available in black nylon color

Khaki and OD material is 55% cotton/45% poly

the Civilian is available in limited quantities

M4 Commando Open St Weighted:No It is used with 9Rings Manufacturing has been providing firearms simulators and training devices to civilian, law enforcement and military trainers for decades. Their BLUEGUNS are crafted to the exact size and dimensions of the firearms they represent. These replicas are so exacting that holster and accessories manufactures use Rings Blueguns to display and demonstrate their products. Made from high impact polyurethane these training replicas are the most durable