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<blockquote data-quote="RandyDSok" data-source="post: 175994" data-attributes="member: 201">Hey Rob... Taking what little I know after a brief bit of research.... First to answer your question, yes those CO2 refillable are available in a lot of places. A quick search on Amazon or Google will get you a lot of results. Some things to consider. First and probably foremost is that you will likely not get the same capacity that you would with a factory filled unit. You'd still need a way to get it refilled with high pressure ( something like 4500 psi or so ), so a standard compressor won't work. I'd suggest asking at a scuba shop what compressor they'd recommend for a home use of that type and expect to pay in the neighborhood of at least $300 and probably higher. You would also need to have oil and water filters for the air supply, so factor that into the mix also. Off the cuff guessing ( heavy on the guessing ), I'd expect about a 1/3 of the capacity you see in a factory unit... if you are really lucky maybe half. I'm also uncertain what the density and compressibility of air is vs CO2, so that may also factor in.If you are serious about looking into that direction... I'd suggest looking at getting a PCP type of air rifle/pistol instead. These already have larger air cylinders built into them made for refilling. Most of the videos I've seen about them, the folks often don't get the compressor because of cost/complexity reasons and instead just buy/rent tanks of air from their local scuba shop to refill from. I saw a lot of Youtube vids about the PCP air rifles ( wasn't looking at pistols ), so I'd suggest watching a few of those reviews to get a feel for those subjects.</blockquote>

[QUOTE="RandyDSok, post: 175994, member: 201"] Hey Rob... Taking what little I know after a brief bit of research.... First to answer your question, yes those CO2 refillable are available in a lot of places. A quick search on Amazon or Google will get you a lot of results. Some things to consider. First and probably foremost is that you will likely not get the same capacity that you would with a factory filled unit. You'd still need a way to get it refilled with high pressure ( something like 4500 psi or so ), so a standard compressor won't work. I'd suggest asking at a scuba shop what compressor they'd recommend for a home use of that type and expect to pay in the neighborhood of at least $300 and probably higher. You would also need to have oil and water filters for the air supply, so factor that into the mix also. Off the cuff guessing ( heavy on the guessing ), I'd expect about a 1/3 of the capacity you see in a factory unit... if you are really lucky maybe half. I'm also uncertain what the density and compressibility of air is vs CO2, so that may also factor in. If you are serious about looking into that direction... I'd suggest looking at getting a PCP type of air rifle/pistol instead. These already have larger air cylinders built into them made for refilling. Most of the videos I've seen about them, the folks often don't get the compressor because of cost/complexity reasons and instead just buy/rent tanks of air from their local scuba shop to refill from. I saw a lot of Youtube vids about the PCP air rifles ( wasn't looking at pistols ), so I'd suggest watching a few of those reviews to get a feel for those subjects. [/QUOTE]

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