Receiver extension tube for the AR15 carbines from UTG PRO. The guide allows you to set stock in one of the six selected items according to user preferences.
Precisely made by CNC method from durable 7075-T6 aviation aluminium in the Mil-Spec dimensional standard. Receiver extension tube finished with type III hard anodizing. Through to the use of aluminium, the structure is light and durable.
Receiver extension tub compatible with AR15 standard buffers and springs.