The Accu-Tac B4 simply adjusts for top and uneven surfaces. The legs are very simple to deploy; simply pull them out and modify the angle in your liking. The pull-to-unlock operate is perfect for a field bipod, In particular one that has spike ft. Mike is retired and at present https://riflescopes48056.ampedpages.com/facts-about-bipods-revealed-59305326