The entire point of a twist off PVS-14 mount is to take the PVS-14 from a head mount to a weapon mount quickly. This product allows you to do just that. The down side is removing the swing arm from your PVS-14 is not a realistic option every time you go from head mount to weapon mount. With this in mind, significant clearance is needed to clear the swing arm as you twist on the PVS-14. To mount this properly I needed to move my EOTech 553.A65 forward past the Delta ring. This is very far forward, but still functions flawlessly.
Pros: Does what it says it does.
Cons: If you leave the swing arm on your PVS-14 you will need to have a big gap between the mount and your optic to have the proper clearance.
This review was written in the old system and had content requirements that are different than reviews written today.