jond36 Posted May 4, 2009 Report Share Posted May 4, 2009 Do the WE,WA, G&P, or GHk function well on 134a gas? Can the GHk even use 134a? I have been asking for a while but nobody seems to know. Also where is the best spot in the US to get this? Link to post Share on other sites
RacingManiac Posted May 4, 2009 Report Share Posted May 4, 2009 I reckon if you build you rifle accordingly you shouldn't have problem with WA system. Stock WA I'd imagine will run on Duster Gas. Its about moving mass and spring and bolt resistence. Reducing those will help you cycle on less powerful gas. Aftermarket parts have light weight bolt carrier, light rate recoil spring, and light weight bolt/nozzle. Do note that this will also decrease kick, but will help lower gas consumption too... Link to post Share on other sites
Horsem4n Posted May 4, 2009 Report Share Posted May 4, 2009 the stock wa was meant to run on 134a, and it does. as for all the other guns, 134a doesn't run correctly. its an odd question coming from an american. Link to post Share on other sites
jond36 Posted May 4, 2009 Author Report Share Posted May 4, 2009 Well I want to use it in CQB as well as long range. So 134a in one mag and propane in the other. Mark one blue the other red. Link to post Share on other sites
Horsem4n Posted May 4, 2009 Report Share Posted May 4, 2009 buy a ratech npas system. Link to post Share on other sites
snorkelman Posted May 4, 2009 Report Share Posted May 4, 2009 what he said with the NPAS you can then get the FPS that a standard non adjustable GHK bolt would offer on 134a (or go even lower if you want) but retain the kick of the green gas proppellant to ensure reliable cycling, and the useable minimum temperature and cool down characteristics will remain that of green gas (as thats what you'll have in it), not 134a. Link to post Share on other sites
Stealthbomber Posted May 5, 2009 Report Share Posted May 5, 2009 and the useable minimum temperature and cool down characteristics will remain that of green gas (as thats what you'll have in it), not 134a. To be pedantic, 134a actually works better than propane (except for the whole "power" thing). It doesn't cool down as much and it gives better consistency from shot to shot. 134a also gives you more shots per fill of gas. I dunno. Just different characteristics of different gasses, I guess. Link to post Share on other sites
jond36 Posted May 5, 2009 Author Report Share Posted May 5, 2009 Anywhere to purchase in the USA? Link to post Share on other sites
RacingManiac Posted May 5, 2009 Report Share Posted May 5, 2009 How easy is the NPAS to adjust on field? The vid looks like it needs you to take it apart with many small parts to turn something. I might have read his intention wrong but he seems to want to do this on the field. Link to post Share on other sites
RacingManiac Posted May 5, 2009 Report Share Posted May 5, 2009 To be pedantic, 134a actually works better than propane (except for the whole "power" thing). It doesn't cool down as much and it gives better consistency from shot to shot. 134a also gives you more shots per fill of gas. I dunno. Just different characteristics of different gasses, I guess. Cool down is a byproduct of the rapid discharging of higher pressure gas....the delta P is much higher for propane.... Propane is just a necessary evil for running heavier bits with full metal gun that people likes, and the running cost of propane is much lower.... Link to post Share on other sites
Horsem4n Posted May 5, 2009 Report Share Posted May 5, 2009 all he want to do is be able to use a GBBR in cqb and woodland. the NPAS can only be purchaced from ratech themselver(here). its a bit expensive, but it saves you from buying duster gas which is around 10 bucks a can and doesn't last as long as propane. its an investment. to adjust the npas, all you need to do is take the bolt out and stick the adjustment tool down the nozzle and turn it like a screw. Link to post Share on other sites
Kiki-Jiki Posted May 5, 2009 Report Share Posted May 5, 2009 to adjust the npas, all you need to do is take the bolt out and stick the adjustment tool down the nozzle and turn it like a screw. As long as you have the "Simple Adjustment NPAS". Their first round NPAS didn't have that and you had to actually take the bolt and everything apart to adjust it I believe. Link to post Share on other sites
RacingManiac Posted May 5, 2009 Report Share Posted May 5, 2009 I remember watching the vid of the NPAS and the old adjustment process looks tricky to say the least....lol Link to post Share on other sites
Kiki-Jiki Posted May 5, 2009 Report Share Posted May 5, 2009 I remember watching the vid of the NPAS and the old adjustment process looks tricky to say the least....lol Yeah lol not exactly something you would do in the field... Link to post Share on other sites
Noveske Posted May 5, 2009 Report Share Posted May 5, 2009 IS there a new NPAS by RATech? I have an Inokatsu with the RATech NPAS. Adjustment requires you to take out the bolt, then disassmble the nozzle before being able to reach the adjustable part. that said. The stock inokatsu doesn't run on 134a. The stock bolt is too heavy and the buffer spring too stiff. Link to post Share on other sites
Kiki-Jiki Posted May 5, 2009 Report Share Posted May 5, 2009 IS there a new NPAS by RATech? I have an Inokatsu with the RATech NPAS. Adjustment requires you to take out the bolt, then disassmble the nozzle before being able to reach the adjustable part. that said. The stock inokatsu doesn't run on 134a. The stock bolt is too heavy and the buffer spring too stiff. Yes, if you look on their website they have a video for the "Simple Adjustment System" NPAS, where you literally take out the bolt, stick a key into the back of it, turn it, and that adjusts the FPS. Link to post Share on other sites
jond36 Posted May 5, 2009 Author Report Share Posted May 5, 2009 Sorry, I meant to elaberate. Where in the USA can you buy 134a? Also I forgot to mention Propane smells like ... well you know. Everyone I play with says it smells the whole course up. So now if I want to use propane I have to buy Green Gas so it smells ok with out giving the whole field a headache. It is not bad with a pistol, but a few mags of a GBB rifle and it smells bad! Link to post Share on other sites
Horsem4n Posted May 5, 2009 Report Share Posted May 5, 2009 i would just screw them. if its not in the rules, use the "its cheaper" excuse to use propane. in the US, the only other way to get 134a gas it to buy computer duster gas. duster gas is the most popular alternative and is in the same relationship with 134a as propane is with green gas. you just pick up your choice of brand and pry off anything on top till you reach the feed neck. then you plug on am AI duster adapter and your ready to fill mags: http://www.airsoft-innovations.com/DAdaptor.html other than that. im pretty sure you can find airsoft 134a gas in the larger shops. Link to post Share on other sites
Noveske Posted May 5, 2009 Report Share Posted May 5, 2009 How does propane compare next to green (top) gas? Is the composition similar? Link to post Share on other sites
jond36 Posted May 5, 2009 Author Report Share Posted May 5, 2009 It is the same. Except green gas has lube and a better smell. Link to post Share on other sites
Horsem4n Posted May 5, 2009 Report Share Posted May 5, 2009 yeah. for a while, green gas was a mix of different things and a little propane to make a very effective airsoft gas, but lately, its just propane and silicon. Link to post Share on other sites
Horse Posted May 5, 2009 Report Share Posted May 5, 2009 i would just screw them. if its not in the rules, use the "its cheaper" excuse to use propane. in the US, the only other way to get 134a gas it to buy computer duster gas. duster gas is the most popular alternative and is in the same relationship with 134a as propane is with green gas. you just pick up your choice of brand and pry off anything on top till you reach the feed neck. then you plug on am AI duster adapter and your ready to fill mags: http://www.airsoft-innovations.com/DAdaptor.html other than that. im pretty sure you can find airsoft 134a gas in the larger shops. You can get Duster from www.weaponblender.com - I just picked up some last week. Link to post Share on other sites
jond36 Posted May 5, 2009 Author Report Share Posted May 5, 2009 ok. and duster like c lean your computer duster? Link to post Share on other sites
Kiki-Jiki Posted May 6, 2009 Report Share Posted May 6, 2009 ok. and duster like c lean your computer duster? Yes, literally go to best buy and buy the computer duster gas, and then go online and buy a duster gas adapter, and boom- cheap 134a gas. Link to post Share on other sites
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