Use this adapter and a QD Sling Swivel to convert your Magpul MS1 sling into an MS4 sling.

The MS4 adapter forms the rear part of the sling and allows you to switch between two-point and single-point use simply by switching the other QD Sling Swivel (sold separately) from the front to the adapter.

Constructed of Melonite and manganese phosphate finished steel hardware combined with custom, snag-free, high durability 30 mm (1 1/4") webbing. Heavy-duty push-button QD Sling Swivel for one-point attachment. 

Colored webbing has Near Infrared (NIR) treatment to reduce IR signature.

Made in the USA.