Tanio Koba / KJW M4 GBBR Basic Information and FAQ

[beanie]

Ive had that problem when firing full auto. Try taking your magazines apart and lubricate the spring with silicone oil.

[Ivanov]

Originally Posted by audi_bhoy

Make sure the nozzle follows the bolt back enought to ensure that a BB can go up and be chambered. My V2 nozzle was sticking the front, stuck in the notches above the hop up...

Is there a way to correct this?

I'll also try lubeing the mag spring to see if that helps.

[Rommen]

Originally Posted by Ivanov

Is there a way to correct this?

I'll also try lubeing the mag spring to see if that helps.

Put some lube on the grooves that engage in the recesses.

I just got my v2 in the mail today (after my v1 finally broke). It shoots but is having some issues, I looked through this thread and google but couldn't find any answers.

First problem is some mags don't fit into the magwell when the bolt is forward, as if the part under the nozzle that pushes the bbs into the chamber is a bit too thick. Did anyone have to shave theirs a little?

Second problem is the bolt lock.. in this case on the last bb in the mag the bolt lock seems to half engage. What happens is the bolt gets stuck halfway between locked and full forward, and the last bb just rolls up and down the feed ramp. Any solutions?

Thx asc, I love this gun and want it to shoot as good as it once did again

[AnthraX_aX!s]

hey dudes, just got out of a little scrim, early, my damn gun took a beating. the plastic that connects to the buffer tube/stock snapped right off when i was firing from the hip, totally was like wtf just happend then searched for about twenty mins to make sure i didnt lose any small parts. anyways ive been looking for a while now on these full metal lower receivers but they seem pretty damn expensive, anybody know who has the best price out there? if not ill probably just try and find the stock plastic one thanks in advance!

[audi_bhoy]

Hey guys, airsoft porn right here !! Installed a PTS PRS stock on my M4 carbine, thought I could share !! Complete DIY available here.

[Rommen]

Well I just broke my hop up chamber (parts 3 and 4). Was trying to install RATech hopup rubber. Was almost there, just trying to get the brass ring off that holds the two sides (parts 3 and 4) together. Was a little too vigorous with the pliers and bent the two pieces to shit. That brass ring is a bitch lol.

Does anyone know somewhere to get replacement hop up chamber (parts 3 and 4)? Google only came up with Ehobby Asia but they are out of stock : (

[audi_bhoy]

Write directly to KJW. They do have a nice aftersales/part order service and will reply you fast enought, prividing the paypal to send money to usually, if they have the parts in stock .

[beanie]

Originally Posted by Rommen

Well I just broke my hop up chamber (parts 3 and 4). Was trying to install RATech hopup rubber. Was almost there, just trying to get the brass ring off that holds the two sides (parts 3 and 4) together. Was a little too vigorous with the pliers and bent the two pieces to shit. That brass ring is a bitch lol.

Does anyone know somewhere to get replacement hop up chamber (parts 3 and 4)? Google only came up with Ehobby Asia but they are out of stock : (

You can buy direct from kjw by emailing sales@kjworks.com.tw
Tell them the part numbers and that its for the m4 as well as your shipping address.
I have received great service from them in the past hopefully nothing has changed.

If you wrap a thin cord with a rubber surface, I use an old cell phone charger cord, around the ring a few times and grip the cord like a pair of pliers perpendicular to the to the inner barrel then twist as you pull it comes off easier.

[Rommen]

Originally Posted by beanie

You can buy direct from kjw by emailing sales@kjworks.com.tw
Tell them the part numbers and that its for the m4 as well as your shipping address.
I have received great service from them in the past hopefully nothing has changed.

If you wrap a thin cord with a rubber surface, I use an old cell phone charger cord, around the ring a few times and grip the cord like a pair of pliers perpendicular to the to the inner barrel then twist as you pull it comes off easier.

Thanks for the advice! : D (you too audi_bhoy)

[Saberwing]

Just emailed KJW to order a replacement charging handle and parts #2 and #5. Figured that since my charging handle latch has been missing for over a year now I should probably replace it haha

[audi_bhoy]

Just remembered that Cansoft.biz actually have a nice KJW parts inventory, not all are listed, IE the charging handle, emailed him 2 months ago to know if he had one and the next day it was in the mail !

[highny]

Hey guys.

I'm a proud owner of a KJW M4! YAYA!

Just wondering if those madbull rail system would fit a KJW receiver thread. Anyone know?

[StanB.]

Originally Posted by highny

Hey guys.

I'm a proud owner of a KJW M4! YAYA!

Just wondering if those madbull rail system would fit a KJW receiver thread. Anyone know?

I have a Daniel Defense Omega Light rail clone by Madbull on mine, works fine (16")

[audi_bhoy]

Got a Viking Tactics 13 inches on mine, installed perfectly without modding !!

[Cj Radge]

I made a new upper. KJW TK SPR GBBR, thoughts?
(please ignore the 20 round magazine with live rounds, just wishing the rifle was real hehe)