Increasing The King Arms M1 Carbine Mag Capacity
OptimusPrime
09 Mar 2021
SOCOM Tactical got this quick howto video to show you how to mod the King Arms M1 Carbine Magazine and give it a higher capacity to carry BBs... "Here we take a look at how to modify a King Arms M1 Carbine magazine to hold more rounds and to install a follower to allow the bolt to be held open on an empty magazine."