Topic: Umerax magnum inquiry infant desert eagle power modification (Read 651 times))

So as a new fellow member I don't have motion picture posting privileges, I'll just have to be super descriptive.
The baby desert eagle is an inexpensive co2 powered repeating pistol with a 15 bb "mag" along the acme of the barrel enclosure.
Stock it'southward rated for 420 fps. I recently had it apart and figured out a power mod.
It's held together past Phillips screws, a long one at the muzzle end (under leap pressure, conscientious) and a modest one on the hammer, one for the picatinny (don't lose the ballast for this one) and the other half dozen are the same size.
The action goes like this, the trigger pushes the barrel forward past the bb feed and confronting the bound encircling the butt, when information technology breaks the butt slams dorsum loading the bb then pushing in the co2 valve, co2 released, bb flies, tin can dies.
The co2 valve has a nipple for the cartridge feeding a fairly large sleeping accommodation, a blast shaped pin is held by the valve spring sealing the hole on go out side, the shaft feeds through the pigsty and protrudes outside equally the pivot. The shaft of the pivot is hollow almost to the head where it connects to a hole through (perpendicular to) the shaft (I'll call this the leave port). Pushing the pin into the valve puts the exit port into the co2 chamber which flows through the exit port, down the pin through a collar into the barrel.
Some might try increasing the strength of the barrel spring thinking they could open the valve longer. Not so much, there is a collar, a hollow stepped cylinder that pushes the hollow valve stem on one side and gets pushed by the breech cease of barrel on the other. This collar only allows the valve to be pushed in about 1/2 a mm. Checking the inside of the valve I found that but about 1/three of the get out port was exposed with this picayune move. So no matter how stiff a butt jump you had the collar prevents information technology from opening the valve further.
If you reduce the length of the collar on the valve side (the larger diameter side) you tin can increase the co2 output. The valve stalk gets pushed further, exit port opened more than and valve open up longer. I figured taking off about 1 mm would fully betrayal the get out port on the inside of the valve.
I took it downwards about 0.half dozen mm and it seems actress punchy. Gonna run through co2 faster but I found this guy would still have tons of co2 subsequently I was washed shooting, commonly one cartridge would last 3-4 sessions.
I need to make a chronograph so I can give existent numbers.
One might also try enlarging the exit port and id of pivot and collar
I hope that'southward articulate enough, if non ask questions.
Thanks you

Never tuned a co2 pistol this kind,but yous still increased valve lift,the only two things left are ensure a better menstruum and increase percussion spring rate a bit.Increase internal valve volume can help,just i don't come across how in this kind of small valves.

I recollect you modding a co2 pistol is cool. Only a chronograph only costs as much equally your iii co2 pistols so only buy 1 and so yous and the people that read your posts can have faith in your velocity numbers.

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