Proper Way To Retract The Carbine Bolt

[Sunray]

The piston and its nut should never be removed as part of the cleaning process. Requires a special tool and replacement of the itty-bitty, wee, tiny, small gas piston nut. (Both of which would be easily lost by inexperienced troopies.) The gas piston was never intended to be user maintained. The gas system is supposedly self-cleaning due to it's location. Kind of makes you wonder who wrote that TM.
A slam fire doesn't happen with properly loaded ammo. Doesn't happen with issue ammo either. A slam fire is caused by improperly hand loaded ammo. Usually high primers. And are not caused by the rifle.
A hang fire is not a slam fire either. A hang fire is also defective ammo.
Oh and it's with one's right hand held flat and slapped backwards against the op handle with the Carbine held against one's shoulder ready to shoot. When one shoots to correct left handedness. Not from one's waist as demonstrated in the TM picture.