Converting a crosman M4177 to CO2
- Thread starter roadblock 12x3
- Start date
The real chore is to come up with an adapter that will fit the body tube of the pump gun, to allow you to feed CO2 into it. The pump pneumatic guns typically have a smaller diameter pump body than the CO2 ones, so the standard bodge of drilling and tapping a CO2 cartridge won't work. Usually.
Not complicated to make, if you have a lathe, but not trivial without.
Once you can secure that adapter into the body tube, then you need to find the fittings to get CO2 from a tank to the valve.
Oh. It won't work on a blow open type valve at all (OK, technically it could, but if you are asking, just stick to 'no'), you will need to start with a strike-to-open type valve in the first place.
Grab a paintball magazine at the magazine stand, and look though the adverts for hardware. That should give you a pretty good idea for what is available.
Take a look at the Mac1 Airguns site and see what he has for adapters, too.
Cheers
Trev
Not complicated to make, if you have a lathe, but not trivial without.
Once you can secure that adapter into the body tube, then you need to find the fittings to get CO2 from a tank to the valve.
Oh. It won't work on a blow open type valve at all (OK, technically it could, but if you are asking, just stick to 'no'), you will need to start with a strike-to-open type valve in the first place.
Grab a paintball magazine at the magazine stand, and look though the adverts for hardware. That should give you a pretty good idea for what is available.
Take a look at the Mac1 Airguns site and see what he has for adapters, too.
Cheers
Trev
As TrevJ noted, the volume of the air chamber will be smaller than needed for CO2 to produce same power; I would expect a large drop in velocity. I noticed this when taking apart my Backpacker (air pumper) and 2240 while swapping parts.
Just thinking out-loud: what about a PCP set-up rather than CO2? Certainly beyond my mechanical abilities and tools, but you probably have more skill and easier access than me.
If you pulled this off, you'd be a hero. I hate pumping.
Just thinking out-loud: what about a PCP set-up rather than CO2? Certainly beyond my mechanical abilities and tools, but you probably have more skill and easier access than me.
If you pulled this off, you'd be a hero. I hate pumping.
Converting a co2 gun to a tanker is a lot easier, valving comes into play. With the proper tools and determination much can be accomplished. This is a 2240 that I did last year, shoots just under the magic 500fps on the chrono.
Converting a co2 gun to a tanker is a lot easier, valving comes into play. With the proper tools and determination much can be accomplished. This is a 2240 that I did last year, shoots just under the magic 500fps on the chrono.
Now THAT'S some interesting work. Hmmm, we may need to talk.
As a side note, I started with a 1377, went to a Benjamin hb22 but pumping for a hundred shots gets old fast. Picked up 2 of the 2240 guns, one for some future project. The 2240 is far more pleasant to shoot. Get about 400 shots on a $2.00 fill on the tank. I have a valve kit for the 1377, may play with it at a later date.
Converting a co2 gun to a tanker is a lot easier, valving comes into play. With the proper tools and determination much can be accomplished. This is a 2240 that I did last year, shoots just under the magic 500fps on the chrono.
Nice build! So many others look like plumber's nightmares.
