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Can I use propane in the 1911 mk series?


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#1 nbv386

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Posted 06 October 2012 - 11:45 PM

The title pretty much sums it up soon I want to get a mkII or mkIII but I wanted to use propane in it and I have heard good and bad things on useing propane so I just wanted some pros advice that has used or has experience with useing propane in these guns. Thanks

#2 Chuck S

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Posted 07 October 2012 - 08:29 AM

The good and bad things about propane are no different in this pistol than in any other GBB gun.

-- Chuck

#3 nbv386

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Posted 07 October 2012 - 12:34 PM

K thanks. But then I have one more question

Should I use propane in it? I will be adding plenty of sillicone oil.

#4 Outlaw1995

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Posted 07 October 2012 - 12:37 PM

I would not recommend using propane (at all, but if you must:) until after your 45 day warranty is over... here's my lengthy explanation:

KWA GBB guns are designed to run on Green gas. Any other gas such as propane will void your 45 day warranty. You can buy propane and use a propane adapter with silicon oil to run your gun AFTER YOUR 45 DAYS OF OWNERSHIP, but KWA tests have concluded that propane will do a number of bad things to your KWA GBB guns- if not maintained properly. First, using propane will increase felt recoil and wear out your internals faster. Since it is a dry gas, unlike green gas that has the right amount of silicon oil to lubricate, you will dry up your internals and put extra wear on your internals and risk damaging parts on your gun. Some people report success from using propane, KWA suggests green gas.

Here's a quote I like to refer to when it comes to choosing green gas over propane:

"Propane fuel tanks contain an odorant (ethyl mercaptan) which is known to "attack" some forms of plastic, rubber, and coatings. This is one of the many reasons why we don't recommend it. If you "must", please make sure you have a "rigorous" cleaning/maintenance schedule to ensure there are no build-ups of residue that may gunk up the vital parts of the gun. " -Radix, big boss at KWA.

So if you think about it, spending $20 on an adapter, and about $3-$5 on a propane tank, and save money on expensive green gas, but risk breaking or damaging your gun and having to buy extra parts to fix it is inexpensive, I suggest just going with the sure thing and buying green gas. LOL

Thats my $.02 on gas to use. As an avid KWA GBB guy, I do what KWA tells me to: use green gas in my guns.


#5 nbv386

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Posted 07 October 2012 - 06:22 PM

Ok I think that I will just use green gas then but idk if you are allowed to post this if not its ok but where can you find the best deal on green gas ( but at a place where they'll ship it?

#6 Outlaw1995

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Posted 07 October 2012 - 06:38 PM

I would probably go for the case deal from evike. From this site, it's only $10.41 a can, versus the $14 I usually pay at my local store.
http://www.evike.com...oducts_id=27709

#7 Chuck S

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Posted 08 October 2012 - 03:11 AM

Also sold by the case (only) at Pyramyd Air.  I know the hazmat fee is included in the Pyramyd Air price.

-- Chuck

#8 niko_gpsy

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Posted 18 October 2012 - 11:28 AM

I have tried propane in all of my KWA GBB guns and SMG's and the only gun that worked well with propane was my MKII and MKIV.  All the other guns had cycling and accuracy problems after 1 mag.  
But I think I will stick to green gas for peace of mind.  Besides, with green gas my wife won't make me spray febreez on my guns before I bring it back in the house. JK LOL

#9 The_DG

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Posted 16 January 2013 - 09:58 PM

Hmmm I didnt know propane was a bad thing on the gun.... oops. I've ran about 10-12 mags of it through the gun, cleaned it pretty good several times.

#10 Cerveza

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Posted 17 January 2013 - 08:08 AM

According to this study LINK there is no difference other then the oil/scent.

#11 niko_gpsy

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Posted 17 January 2013 - 02:07 PM

View PostCerveza, on 17 January 2013 - 08:08 AM, said:

According to this study LINK there is no difference other then the oil/scent.

Well not exactly.  Besides how can you completely trust a company that manufactures adaptors and accessories for propane use? lol

#12 The_DG

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Posted 17 January 2013 - 04:28 PM

I've always heard from all the techs and stuff that they were nearly the exact same thing. They may be a very few differences that each company makes. I know that propane smells kinda bad so I'm sure the reason green gas smells good is cause they didnt like the propane smell.
I personally have used an adapter and silicone oil and my gun has been fine. I always squirt a little extra where you fill the mag up at first just to make sure its got a little extra lube in the gun. Propane (with a silicone adapter) and green gas are self-lubing, so the gun will not wear out because the gas actually lubes the gun when you're using it.

#13 Outlaw1995

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Posted 17 January 2013 - 05:54 PM

DG, propane smells bad because when its manufactured and put inside pressurized tanks, companies add that additive smell so you can easily identify if there is a propane leak. Propane is naturally odorless.

Also, please see my post above.

Edited by Outlaw1995, 17 January 2013 - 05:54 PM.


#14 General Pickle

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Posted 24 February 2013 - 01:53 AM

I have been using propane in 3 KWA guns with no adverse effects. My MKII has the most propane time, and the only thing that went wrong was the rubber spacer in my guide rod wearing out (perhaps from too much temperature change?) and causing the hammer to get stuck under the slide, which was easily fixed with some simple shimming. I clean the gun after EVERY game, making sure to remove all grime from the gun and making sure to get plenty of lube in the o-rings (froglube, mind you). My MP7 has also had a lot of propane through it, the only issue being that the nozzle return spring broke at the rear attachment point due to the rocket valve polymer bumper coming off and becoming lodged in the bolt assembly. Again, a simple spring mod and epoxy job and we're back in business. The gun is also deep cleaned after EVERY game, same methods as the MKII. My LM4 PTS has been running propane for a few game days now, no problems to report. Again, cleaning with the same methods.

Should you use propane? Here's the real question: Do you enjoy maintaining your guns? Propane requires more attention to technical detail and more loving care for you guns; are you okay with cleaning your GBB's as if they were real steel? Personally I love it, so I'll never use green gas, cuz that @#$% is expensive!

#15 Chuck S

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Posted 24 February 2013 - 08:03 AM

We debate propane vs. green gas here and the other "6mm" forums daily; we debate Russian steel cased/jacketed ammunition vs. USGI ball ammo daily in the "5.56mm" forums.  The major points in favor of propane and steel cased/jacketed ammo boil down to costs and maintenance levels.  And there are disciples and zealots for each.  :)  What works for me may not work for you.

-- Chuck

#16 gcw360

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Posted 24 February 2013 - 08:42 AM

View PostChuck S, on 24 February 2013 - 08:03 AM, said:

We debate propane vs. green gas here and the other "6mm" forums daily; we debate Russian steel cased/jacketed ammunition vs. USGI ball ammo daily in the "5.56mm" forums.  The major points in favor of propane and steel cased/jacketed ammo boil down to costs and maintenance levels.  And there are disciples and zealots for each.  :)  What works for me may not work for you.

-- Chuck
Well said.  I would always wait the 45 days till the warranty is expired to simply avoid the "voided warranty" issue raised by propane.  If you like propane...by all means have at it.  Just be prepared for the issues that come with it's use.  Me, I come down in the GG camp.  But I don't run GBB primaries....at least not yet.




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