THOMPSON AUTO ORDINANCE Factory SMG & SEMI Drum Bolt Hold Open Device- 3rd Hand tool Third Hand 1927A1 1928 and others NEW

Finally available, This Bolt hold open device, also known as the third hand device made by Auto Ordinance, enables you to remove your 10-50-100rd drum. With the drum in the gun put the beveled end into the channel that the stick mag would go into, Push that all the way up as you pull the bolt back this will make it lock open. This is a Very important part of your Drum set up.