Would someone mind explaining to me the reason why the top of the trip is bent inward? I've been thinking about fabricating a taller one to give me a semi function on my ceiner .22lr conversion kit. I would like to do this as a crawl-walk-run function. I enjoy introducing new people to machine guns, and I would like to have a step to show them that the recoil isn't as bad as it looks when I'm firing it. Thank you in advance for your assistance!