i reccomend them!
both packs use the same frame!
it should consist of at least:
an aluminium frameit bends towards you at the shoulders
two padded shoulder straps, with quick release clips, and straps attatching at waist level.
a lumber(lower back pad)
a waist belt (fitted either to the frame or lumber pad)
the two sacks are interchangeable.
the frame can be used without the sacks as a packboard.
the medium sack is good as a patrol or day sack, based on the designs of the vietnam issue pack, and can be worn without the frame.
it's about 45 liters(same as the PlCE patrol sack)
the large sack around 60 liters, is designed as an arctic pack, it must be worn with the frame. it is wider and has 3 extra poppered pockets.
both have an internal lacing system that can reduce the overall size of the pack. both have radio pouches just inside the main pouch.
both packs have rows of weebing so you can add loads of US webbing pouches, waterbottles ect, which is great but be cautious, it's easy to get carried away and look like a christmas tree! also kit can fall off easily!
the pack is not waterproof, you will need to use a waterproof liner, it's worth you while getting a cover also!.
things to check:
wobbly rivets on the frame, they can be replaced, but it's a nussiance(i had to on mine).
check under the top flap of the sacks, you should find a rubbery coating on the underside(it's a map pocket), if not it's quite old.
check points of contact were fabric meets frame, there will be wear, but is it bad?
check all the metal fasteners, they are steel so could rust.
check the belt and quick release harness, look for cracks in the plastic.
check for any repairs/taped areas, they could hide something nasty!
lastly, put some weight in it, a realistic amount 50 lb or so, what does it feel like, some people say it has a strange unbalancing feel!!!!
£45 for both seems a good price to me.
if you do buy them try to get hold of a US army Field manual book called:
FM 21-15 Care and use of individual equipment
it is the "operating manual" for the bag and other US ARMY ALICE equipment, it'll tell you how to put it together, clean it, what it does ect.