S.B.A.R (Straigh-pull Bolt Action Rifle)
by Ben_the_Builder in Living > LEGO & K'NEX
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S.B.A.R (Straigh-pull Bolt Action Rifle)
So I have succumb to my brain boggling idea thay I needed to make another semi realistic action in a new gun.. so I went to a straight pull bolt action rifle and came.up with this monstrosity (don't mind the looks, I don't have much K'nex left).
- Straight-pull bolt
- Internal 6 round mag
- Block trigger
- Top loading
- Occasionally the bolt will seize, but the firing pin can move freely so fixing a jam is easy.
- Straight-pull bolt
- Internal 6 round mag
- Block trigger
- Top loading
- Occasionally the bolt will seize, but the firing pin can move freely so fixing a jam is easy.
Bolt Closed
This is not a complete 'ible, I literally finished building this thing at 3am and wanted to see what people thought.
The Gun uses an open/closed bolt mechanism, where in this particular gun there is a sleeve that moves part of the barrel back and forth.
Pictures in the step are the bolt in the closed position, ready for prime.
The Gun uses an open/closed bolt mechanism, where in this particular gun there is a sleeve that moves part of the barrel back and forth.
Pictures in the step are the bolt in the closed position, ready for prime.
Bolt Open
Looking at the photos in the previous step you can note the different positions the bolt/sleeve has when the action is primed. It does make loading a bit tricky, but you can either load from the top, or pull the mag pusher out and load from the bottom.
Primed and Ready to Fire.
That's pretty much it, mechanism has done it's job and it's good to go. You can't pull the bolt out of the gun as I haven't got enough pieces to makw that a part of the mech. But it does habe enough travel to load and fire the gun uaing the bolt sled.