This addon is an automatic animation switch to a supporting left hand stock grip with LMG and MMGs. This change occurs when you adopt the prone position or you deploy your weapon a la the ACE 2 Weapon Resting.
beta pbo for testers:
Please tell me of any MGs you want me to add this feature to. Simply note the name on the debug menu and throw the name to me via this thread and what addon it is from.