This guide details the installation and practical application of the Masterkey shotgun attachment on an M4 Carbine, drawing from expert insights by Garand Thumb. It covers the mounting process, specific breaching techniques like the '45 and 45' method, and the use of specialized ammunition. The video emphasizes the expertise of its presenters, who have backgrounds in Air Force Special Warfare and Army Rangers, providing a high level of technical detail on breaching physics and equipment.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
