Incoming threadjacks!
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"Other rifle" was the infamous XM8, maybe?
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All the bolt-on bullshit required by the IBA / SAPI combo, for one. Unit SOP dictated shoulder pads and side plates.
I don't know about you, but my skinny ass can't move inside an RG31 with that shit on. We need tighter stuff.
Running with all that floppy bolt-on armor on really tired me out and I'm not exactly a couch potato.
A single piece breakaway rig with pockets for front/rear/side SAPIs. Preferably not front-opening.