Installed on tube magazine. Was not able to tighten enough to prevent from shifting on tube as warned about in some descriptions. Stripped out allen head screw. Opted to run sling around tube mag instead of using band. I gave no "Cons" because product functioned as described. "Will move on tube if pressure applied".
Pros: Inexpensive
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.