- December 6th, 2020, 7:12 am#4943035
As far as i remember from my times in active service (although it wasn't in the US military), backpack frames like can be manhandled pretty badly in various training scenarios (e.g. putting them together for transport of the wounded....), which can lead to deformations like these.
These deformed bend frames may become considered "damaged and/or faulty" and will therefore be sorted out, which is the way they pop up on the aftermarket - so there's quite a chance, that any frames sold as "used condition" packframe has some more or less deformations.
I've had exactly the same problem, but was able to fix it by (very carefully) bending it back, supported by levers. But there is of course some risk, it could break or get brittle due to the bending (aluminium is a lot more sensible and will not withstand as many deformation). As long as the pack isn't too heavy, it may work anyway.