Bolt Action Rifle with Blowback?

[Huron]

As the title says. Owning a GBBR, I came to think of how depressing it would be to go back to no kick... And a concept for a blowback bolt action rifle popped into my head. My verbal description may not get the idea across, but I'll try:

It would function essentially like a GBBR without a recoil spring. A latch inside the bolt would secure the blowback portion (housed within the bolt - realism factor may drop here) and as the bolt is delivered forward, it would bring the "blowback weight", for lack of a more precise term, to a ready-to-fire position. Gun fires, gas drives BB forward and weight to the rear, weight locks at the back of the bolt. When the bolt is pulled back, the weight remains stationary as the bolt travels, then latches at the front of the internals of the bolt, ready to be fired again.

Problems:

-Impractical
-Unrealistic system
-Perceivably pointless

Benefits:

-Blowback is pretty damn cool
-Touch of realism with the kick
-No automatic return means more distinct, rearward force when it kicks (as opposed to the "shake" effect you get as the BCG returns forward in a semi-automatic system)

Anyways, just figured I'd write it down to clear up the idea and revise it. Even as I was typing this, it occurred to me that the blowback portion could feasibly be housed elsewhere in the gun, forward of the bolt for example.

Thoughts?

[Gato]

The "Kick" or, as it's properly called Recoil, of a GBBR, is not from pressure racing to exit the barrel of the weapon, it's from the bolt slamming back into the rifle, without that, there won't be much, or as I'd suspect, ANY recoil to a GBBR.

On a real bolt action, the kick comes entirely from the forces of the propellant, which, unlike a GBBR's propane or green gas, is rapidly expanding gasses created by the burning of the propellant.

So like you've said, the system will be extremely complicated for somethign that's essentially a toy, the action time between trigger pull and "recoil" will be rather delayed and noticeable to anyone who's even seen a MOVIE with guns in it.

I'd say just forget it.

[yuhaoyang]

It's doable, but would make working the bolt more effort than it's worth. Just imagine an AR buffertube in reverse. Have the buffer weigh as much as a bolt+buffer, and battery of the spring be fully compressed with an aluminium buffer of equal height. Front end is the same as a regular spring action rifle. Have a sprung catch that twists with the bolt handle, unlatch bolt handle, catch moves into correct position, pull bolt backwards to cock spring action, when bolt reaches rear-most travel, catch engages the primary bolt/buffer thing, and return trip stretches spring. When bolt handle is returned to battery, buffer is caught by a separate trigger sear, then bolt handle re-latched, disengaging the bolt catch. Have the forward bb-propelling spring disengage earlier than kickback sear, so you have like a 2 stage trigger. (eg, BB sear at 1mm pull, kick sear at 2mm), spring with buffer travels backwards, hits aluminium tube buffer. Still not much recoil LOL.

Would only work in guns with the stock above the bolt action (M95 maybe?)

[Huron]

I had CO2 in mind as propellant. Lots of power for kick and range. The weight Is more imagined to be in line with the bolt, possible in front of it in the RS chamber area or within the barrel.