
Originally Posted by
Fromk
I think it's another one of those things that's pretty versatile. A popular thing now is to have a stubby little one as an index point for your hand and pulling back gives some stability.
I imagine holding one like a pistol grip would help during full-auto fire or, like above, allowing some movement in the elbows. I can also see them being load bearing if your job is to stand around with one all day but that's just an educated guess.
I've also seen them either used wrong where someone's just holding that and their pistol grip creating two wild pivot points or not at all with them being some tacticool accessory they got because they thought it would look neat.
They're also good for battery storage and some have bipods in them. I've got one in my range bag I picked up because it was super cheap and I was already getting stuff from a vendor at a gun show. I can't even attach it with my current setup.