Tanio Koba / KJW M4 GBBR Basic Information and FAQ

audi_bhoy · January 31st, 2011, 20:12

Same for me, hoping they release the stanag soon, and not for double the price of the thermold!

Saberwing · January 31st, 2011, 20:19

They better not cost $75 a piece... That's fucking ridiculous for a magazine... I'm hoping they're about $40each...

grantmac · February 1st, 2011, 00:20

HKp30-

No camera with me right now so I will try and describe the SCS mod:
The SCS is run on the bucking with the bulge taken off the outside of the bucking. You then have to trial and error grind down the hop-up arm until it isn't overhopping.
I did find that I needed a way to keep the SCS in place, for that I found a thin piece of kydex kept it from getting pushed forward when putting the barrel in. Also a little sticky silicone grease will help it stay in place.

Love the set-screw hop-up you've got going on there. I find that I rarely/never adjust the hop-up on this gun in the field so something like that would work great for me.

I'm curious as to how you modded that barrel to work with the KJW hop-up? I'm not really impressed with either the RA-tech or Cradle barrels.

Cheers,
Grant

andrew321 · February 1st, 2011, 00:35

The EDGI barrel I picked up has been outstanding. It was a KJ ready barrel, no modifying.

HKp30 · February 1st, 2011, 00:47

If you did find the need to adjust in the field for some reason, you could always change to a different style screw, I just prefer the flush look along with set it & forget it.

The barrel is the stock KJW barrel, no modification required.

Anyone tried the RA-Tech hop-up bucking?

Saberwing · February 1st, 2011, 12:26

Here's the problem with my tigger: YouTube - KJW M4 Trigger Problem
I've tried cleaning it and greasing it. Nothing has worked yet. Any ideas?

bshantz · February 1st, 2011, 12:35

@Saverwing

My trigger has a late response as well, although I know what my problem is. When I swapped out for a metal receiver one of the trigger springs was in the wrong spot, not by much but it affects the reset.

Try taking apart your lower receiver (I know it may seem like too much work, but its not that bad) and re-assembling it.
Unfortunately there isn't much on the internet on doing this so go by explosion diagrams and also if you have a clear lower, it makes it easier as well.

Hope this helps

grantmac · February 1st, 2011, 16:38

Quote:

Originally Posted by HKp30

If you did find the need to adjust in the field for some reason, you could always change to a different style screw, I just prefer the flush look along with set it & forget it.

The barrel is the stock KJW barrel, no modification required.

I thought you had a PDI tightbore modified to work?

-Grant

audi_bhoy · February 1st, 2011, 18:33

@bshantz Were did you find a spare metal lower?

HKp30 · February 1st, 2011, 18:57

Quote:

Originally Posted by grantmac

I thought you had a PDI tightbore modified to work?

-Grant

O, haha, I thought you were talking outer barrel.

Yes the tight bore is a PDI

bshantz · February 1st, 2011, 20:01

@ audi_bhoy

I purchased two of them through a local retailer. Unfortunately, he does not have any more, and I was only fortunate enough to get them because he wasn't using them.

Try asking your local retailer.

audi_bhoy · February 1st, 2011, 22:11

So, if you have 2 of them, you might have one sitting around?

Yeah I'd figure that only retailers could have those, but it seems I can only have access to plastic ones, and I've already got one on it...

Fireboy · February 2nd, 2011, 00:21

Nay. Bshantz sold one of his fmu gbbrs to me.

.

Regarding the mags from cradle. I'm not chums with him but when I asked about them he replied that things were close to being done HOWEVER because they were initially using real stanag shells they ran into export issues with ITAR. They are mod things right now and from what I understand they are going to do. Custom made shell so there won't be ITAR issues.

Pinard · February 4th, 2011, 17:53

HOW THE HECK do I loose the castle nut ? mine is all scratched now

even with plyers...it doesn't budge...

audi_bhoy · February 4th, 2011, 18:57

For your metal body I could send you a barrel wrench

Anyone has hints on where to find a metal lower body? I do want one badly these days!!

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January 31st, 2011, 20:19	#287
Saberwing Trader rating Join Date: Mar 2007 Location: London, ON	They better not cost $75 a piece... That's fucking ridiculous for a magazine... I'm hoping they're about $40each... __________________ KJW Mk18 MOD1 BLOCK 2 - Well VSR-10 - Les Baer Ultimate Recon

February 1st, 2011, 12:26	#291
Saberwing Trader rating Join Date: Mar 2007 Location: London, ON	Here's the problem with my tigger: YouTube - KJW M4 Trigger Problem I've tried cleaning it and greasing it. Nothing has worked yet. Any ideas? __________________ KJW Mk18 MOD1 BLOCK 2 - Well VSR-10 - Les Baer Ultimate Recon

February 1st, 2011, 12:35	#292
bshantz Trader rating Join Date: Feb 2010 Location: Calgary	@Saverwing My trigger has a late response as well, although I know what my problem is. When I swapped out for a metal receiver one of the trigger springs was in the wrong spot, not by much but it affects the reset. Try taking apart your lower receiver (I know it may seem like too much work, but its not that bad) and re-assembling it. Unfortunately there isn't much on the internet on doing this so go by explosion diagrams and also if you have a clear lower, it makes it easier as well. Hope this helps __________________ ----- "Weakness of attitude becomes weakness of character."

January 31st, 2011, 20:12	#286
audi_bhoy Trader rating Join Date: Mar 2009 Location: Trois-Rivières	Same for me, hoping they release the stanag soon, and not for double the price of the thermold!

February 1st, 2011, 00:20	#288
grantmac Trader rating Join Date: Jul 2008 Location: Victoria, BC	HKp30- No camera with me right now so I will try and describe the SCS mod: The SCS is run on the bucking with the bulge taken off the outside of the bucking. You then have to trial and error grind down the hop-up arm until it isn't overhopping. I did find that I needed a way to keep the SCS in place, for that I found a thin piece of kydex kept it from getting pushed forward when putting the barrel in. Also a little sticky silicone grease will help it stay in place. Love the set-screw hop-up you've got going on there. I find that I rarely/never adjust the hop-up on this gun in the field so something like that would work great for me. I'm curious as to how you modded that barrel to work with the KJW hop-up? I'm not really impressed with either the RA-tech or Cradle barrels. Cheers, Grant

February 1st, 2011, 00:35	#289
andrew321 Trader rating Join Date: May 2007 Location: Winnipeg, MB	The EDGI barrel I picked up has been outstanding. It was a KJ ready barrel, no modifying.

February 1st, 2011, 00:47	#290
HKp30 Trader rating Join Date: Jan 2011	If you did find the need to adjust in the field for some reason, you could always change to a different style screw, I just prefer the flush look along with set it & forget it. The barrel is the stock KJW barrel, no modification required. Anyone tried the RA-Tech hop-up bucking?

February 1st, 2011, 18:33	#294
audi_bhoy Trader rating Join Date: Mar 2009 Location: Trois-Rivières	@bshantz Were did you find a spare metal lower?

February 1st, 2011, 20:01	#296
bshantz Trader rating Join Date: Feb 2010 Location: Calgary	@ audi_bhoy I purchased two of them through a local retailer. Unfortunately, he does not have any more, and I was only fortunate enough to get them because he wasn't using them. Try asking your local retailer. __________________ ----- "Weakness of attitude becomes weakness of character."

February 1st, 2011, 22:11	#297
audi_bhoy Trader rating Join Date: Mar 2009 Location: Trois-Rivières	So, if you have 2 of them, you might have one sitting around? Yeah I'd figure that only retailers could have those, but it seems I can only have access to plastic ones, and I've already got one on it...

February 2nd, 2011, 00:21	#298
Fireboy Trader rating Join Date: Dec 2006 Location: Alberta, Earth	Nay. Bshantz sold one of his fmu gbbrs to me. . Regarding the mags from cradle. I'm not chums with him but when I asked about them he replied that things were close to being done HOWEVER because they were initially using real stanag shells they ran into export issues with ITAR. They are mod things right now and from what I understand they are going to do. Custom made shell so there won't be ITAR issues. __________________ Last edited by Fireboy; February 2nd, 2011 at 00:25..

February 4th, 2011, 17:53	#299
Pinard formerly Contractor 6-8, CptPinard17eRAM Trader rating Join Date: Apr 2010 Location: Quebec	HOW THE HECK do I loose the castle nut ? mine is all scratched now even with plyers...it doesn't budge... __________________ Retired chairsofter Last edited by Pinard; February 4th, 2011 at 18:25..

February 4th, 2011, 18:57	#300
audi_bhoy Trader rating Join Date: Mar 2009 Location: Trois-Rivières	For your metal body I could send you a barrel wrench Anyone has hints on where to find a metal lower body? I do want one badly these days!!

Tanio Koba / KJW M4 GBBR Basic Information and FAQ

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