NOTE: The following are Left View assemblies.
Compensator (13) Prevents the muzzle of the weapon from rising during firing.
Carrying Handle (14) Allows the operator to carry the weapon.
Front Sight Post (15) Allows operator to adjust strike of bullet up and down.
Bolt Catch (16) Holds the bolt assembly to rear when last round is fired.
Buttstock Assembly (17) Houses the action spring, buffer assembly, and extension assembly.
Sling Swivel (18) Allows operator to attach sling to the weapon.
Selector Lever (19) Allows the operator to select the mode of fire and place weapon on safe.
Slip Ring (20) Holds the handguards in place on the weapon.
Corrections or additions:contact me.
*Keep working from IET handbooks, find out how to fix a dual feed, find more mnemonic devices. Add in stuff about basic squad tactics and movement techniques. Make a page of nothing, but acronyms.