He's talking about having the gun split into two halves like a survival rifle. This is not something you should have as standard practice. Can lead to many problems.I wonder is is a real rifle inside the case , it could be just a training gun ,
You could argue that for troops who are not likely to use their rifles they might just well leave the gun in a plie few dozen meters away.
Like so..
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In a unit that is not expected to engage the enemy with personal firearm in what use case that makes a practical difference it takes 30 sec or 10 to get the rifle ready to fire.