this is my first knex gun which I'm going to post as soon as I have demolished it and rebuild it again so I can make pictures on how to make it.
It is a mini sniper rifle to be used in places were space is limited and snipers like the sr-v1 won't fit in. It's design allows it do be carried in a backpack so it can be transported unsuspected. When you are in position, you can build it in under 30 seconds when you have trained.
You can change the stock length in about 15 seconds so you can get in to even tighter places if needed.
It uses a what I call a "zero friction barrel" so that maximum power is maintained over the small design of the gun.
It has also been made with as few parts as possible. so that also people who don't have a lot of knex can make this rifle
see the instructions here www.instructables.com/id/the-msr-5-Mini-Sniper-Rifle-5/