The sticky BakTrak rubber pad did very very well at retaining the rifle set up although carrying it with and without having a backpack. We also located the Vapr to generally be lightweight and unobtrusive during our capturing checks. His prototype product continues to be on his rifle these days. https://releaseshotgunknobs09764.blogofchange.com/30155158/the-5-second-trick-for-plastic-knobs