zammo

Hi hoping someone can help me I'm having a slight issue with my bolt m in my vsr one every 10 or so shots the air line pops down slightly and I lose power so I have to push it back up and it's fine again the issue is in the normal vsr it rests on the trigger guard where the vsr one doesn't have that on the trigger box as it's built into the stock so there's abit of a void. I've attached a pic of the part that drops down. Has anyone had this experiance with the vsr one hpa or a solution.