4" Add on Barrel Extension Design
High Grade Aircraft Aluminum Construction
Black Anodized Finish
14x1 Left Hand Thread Pitch for 7.62x39mm
Material: Aluminum
Length: 4"
Outside Diameter: 1.23"
Inside Diameter: 0.43"
Weight: 6.2 oz
WARNING: This product can expose you to chemicals such as lead and other petroleum products which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to https://www.p65warnings.ca.gov