Guarder Enhanced Cylinder Set for Airsoft AEG Gearboxes (Model: M4A1)

"Fantastic air compression. Gives more consistent shots.

"Installed this in my G&P M4, and let me tell you that this is so different from stock parts..

Pros:
Air compression for cylinder and nozzle is out of this world
Easy to install if you know your way around the gearbox
Fairly priced
Fat and juicy o-rings
Sturdy piston and piston head
The finish on the cylinder! Wow!

Cons:
Nozzle coming out from the cylinder head is a little weaker than expected, be really careful/gentle if you are intending to do a cylinder head damper mod!

"got this for a DMR set up. I installed these into my Dboys scar (i got another air nozzle but the stock one for m4s is really good.

pros
AMAZING compression
decent bundle price
guarder
reliable
very sturdy (hold a m135 at about 20 RPS)

cons
none at all

"Kit took a little modification to fit into Echo1 G36k. Had to file down the holes on the cylinder head that fit into the pegs on the gearbox to make them wider. It worked but it was tedious. My guess is there isn't much difference between this and the stand alone bore up cylinder kit without the piston made by Guarder that is actually labeled to be for the G36k. I would just assume the "keyed" holes actually fit the gearbox without modification. A friend bought that and a separate piston head and told me he had no issues fitting into the same gearbox.

Called Evike technician on the phone about this one just to confirm before ordering that it would work in the K so it was bit of a disappointment to have to do the modification after I was told it would fit but the kit works well once it was installed.

Can't tell you the FPS improvement alone because I paired this with a M115 Matrix variable pitch spring. I am getting 384 fps out of the gun with .20s after both those upgrades. Didn't do a great job of checking the compression as I put this whole thing together so there might have been some room for improvement in that regard.

I don't have many rounds through the gun yet so I can't tell you about the longevity of this upgrade.

"Fantastic! Very well worth the money.

Air seal of the piston head and the cylinder is very well done.
I even downgraded the spring, and got a better FPS.

Stock JG cylinder set + m100 spring = 240 FPS

Guarder Cylinder set + M90 spring = 300 FPS

"OHMYGOODNESS...
This kit is amazing

Im using it in my marui and it gives a 15-20fps increase off the stock one. I am running a m110 spring and getting around 360-370fps after about 5k rounds.
Piston can handle up to a m130 with my tests (wouldnt go over that)


Amazing quality parts. Definitely recommended.

5/5

"Guarder Cylinder Enhancement Set for G36C / MK36C Series Airsoft AEG
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I recently purchased this item to improve durability and reduce the amount of leak in the gearbox (increasing FPS).

All the components are above amazing in terms of quality and reliability.


As always, Guarder is a great AEG aftermarket company

A++

"Great upgrade part for your gun. Once you're in your mech box you will so how poor of quality your stock one is. I recommend upgrading this at the same time as installing a new spring. It's easier to only open up your mech box once, rather than a second time. Make sure to buy Evike's grease/oil kit for the bearings and seals. Save on shipping it all together!

"can this work in a CA g3 sg1? i know that the g3 is a ver. 2 gearbox but i dont know if it will work since it only says for m4/m16

"does this fits any of these m4?:
http://www.airsoftpost.com/product_info.php?products_id=-
28322
http://www.airsoftpost.com/product_info.php?products_id=-
28316
please help me and if it doesent fit tell me which one i can use for them

"The stock compression I was getting on an A+K m249 saw was terrible. I replaced the stock cylinder set with this since it was a full cylinder (no air holes). Instant change in fps, went from 310ish to 360. Thanks evike

"will this work on the kart m14 ebr or any other ebr could someon help me

Webmaster: Yup!

"I bought this for my echo 1 stag arms m4 with a pdi 150%. Worked great and i took it out to check it out after using it several times only to find out that it doesnt look worn. Only problem that i had was a bad compression problem due to putting to much grease on the cylender and piston head. Its a great product and great for your wallet.

"This set is so shiny. The cylinder is like polished platnium. The polycarb piston and piston head are so amazing. This set also comes with a cylinder head and an air nozzle. Um very good makes my D Boy SPR m16 amazing. Had to replace crappy stock plastic piston that comes with D Boy M16.

"Very nice kit if you want an easy fps upgrade without putting in a better spring. the kit has wonderful compression that my stock jg didn't have 4 crap. to test compression (with the kit put together, but not in the gun) just put your hand on the air nozzle and try to push the piston down, if the piston is almost impossible to push down, you have some badass compression! 5/5