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Evike.com Moondog Industries Universal Gas Fill O-Ring Set for Airsoft Gas Gun Magazines

35 Customer Reviews

by Elijah T. on 05/29/2017
"Fits just fine In my M&P 9 magazine and creates a perfect seal.

I honestly thought I was out of gas since the seal was so good there was no hiss.
by Mario F. on 02/18/2017
"they're great had a leaky mag but this took care of the problem, although its very hard to install in some magazines(like the we-tech pistol mag)so I ended up having a tiny piece ripped off but surprised it still works(had it since 3 months)I would recommend this to anyone.
by Michael W. on 01/13/2017
"These work as described. A little bit f a pain to put in but worth the time & money.
by Jordan M. on 07/21/2016
"these are good replacement o-rings, just be careful as they are extremly hard to fit in the tm fill valves
by Tim G. on 03/12/2016
"I you buy a KWA pistol mag order some of these you will need them . They work great .
by Loren M. on 12/21/2015
"These are great!! I used them in my KWA M9 mags after finding that a bad nozzle on a can of gas had broken and wrecked the o-rings. I used these as a replacement and they work great. That all I can say.
by Connor H. on 10/20/2015
"LOVVEEEDDDDD IT!!!! My kriss vector has been shotty with the mags for about 4 or 5 months and i tried everything and saw these. Now, no leaky fill! would buy 100x over
by Scott B. on 06/14/2015
"Very happy with these. I have replaced the fill valve o-rings on my KWA KP8 mags (3 each) and my KWA KMP9 mags (2 each) and there is absolutely ZERO spilling from filling even starting with a full can of green gas.

They are somewhat difficult to replace, but I haven't had any tear like what people are saying. Comparing them to the stock KWA charging valve o-rings, they are much thicker and higher quality. I got plenty of leaks with the stock KWA o-rings but none with these.

Here are the steps I take to replace them:
1) Get a sewing needle and poke the o-ring and twist until you get and edge to pull it out.
2) Drop some silicone oil down into the valve.
3) Place moondog o-ring on top and use a pick (not very sharp) to spread around valve.
4) Drop more silicone oil on the top of the o-ring and test fill.
by Bradley B. on 12/11/2014
"Nice O-rings. They do the job they are supposed to. I have not had any O-rings break yet. I stretch them slightly by rolling them on a tooth pick before installing them.
by Juliet C. on 05/23/2014
"GET THIS RIGHT NOW you will not regret it you can save any gas mag that wont fill with this amazing o ring i use them on all my gas mags
by Mike R. on 01/01/2014
"Work great, fit nice and snug in my gbb pistol mags!
by Dan F. on 09/28/2013
"These O-Rings are great. I recently bought a m1892 lever action rifle and upon arrival the gun had issues with filling. Gas would just spray everywhere. I purchased these and replaced the o-ring and it is filling perfectly and shooting great. I highly recommend these o-rings for anyone that owns gas powered guns. They are very handy.
by Marek P. on 09/03/2013
"Good product:

Pros - now I have no gas leaks during filling up the KSC G19 mag
Cons - on one mag, the o-ring - due to its thickness - caused light gas leakage. I fixed it by oiling the o-ring

You canīt go wrong with this one!
by Ryan R. on 05/12/2013
"These o-rings fit in KJW M9 clips I had the clips o-ring fail. Install it just like in the video but before you put it on spray some silicone lube on the o-ring and the nozzle. This ikke make it very easy to install and help make it last a long time.
by Joseph F. on 05/06/2013
"Bought these O-rings for my old Glock34 mags. I thought I had to buy a new fill valve, but all they needed were filler O-rings. Make sure to use some airsoft silicone spray/oil to lube the O-ring and the fill valve; they will go on super smooth and you will not tear any O-rings.

Install them just like the video by using two tooth picks. Just add a step, and oil everything and they will slide in easier and you won't tear any. After installation, there is no leaking when filling whatsoever.

Pros:
-Nice and thick O-rings
-Universal
-No leaks at all now!

Cons:
-Just make sure to oil the O-ring