MKII with Jarvis Barrel Takedown Problem
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MKII with Jarvis Barrel Takedown Problem
Just got my FN 5.7 today and already having a bit of a problem. The package was a nice one with the Jarvis barrel. I am having a problem and have scoured the web and this site to try and find an answer.
I was able to take down the gun with EASE to remove the slide and install the Jarvis barrel. Now I cant remove the slide any more.
I can't break the thing down for cleaning and its driving me nuts.
I am starting to wonder if the Jarvis barrel is even designed for the MKII.
To answer the question on everyone's mind, "YES, I have removed the thread protector." There, now that I have that taken care of, any ideas?
I was able to take down the gun with EASE to remove the slide and install the Jarvis barrel. Now I cant remove the slide any more.
I can't break the thing down for cleaning and its driving me nuts.
I am starting to wonder if the Jarvis barrel is even designed for the MKII.
To answer the question on everyone's mind, "YES, I have removed the thread protector." There, now that I have that taken care of, any ideas?
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Re: MKII with Jarvis Barrel Takedown Problem
Skeet!
Could it be the take down lever? Make sure that the take down lever has it's full range of motion. Several years ago I got a primer anvil stuck under the lever block. The lever would move only slightly, but enough to make you think it was moving enough. It wasn't. Once I troubleshot the mess I found the trouble and managed to vibrate the little tiny piece loose. The lever started moving fully and the problem was solved.
Good luck!
Fox
Could it be the take down lever? Make sure that the take down lever has it's full range of motion. Several years ago I got a primer anvil stuck under the lever block. The lever would move only slightly, but enough to make you think it was moving enough. It wasn't. Once I troubleshot the mess I found the trouble and managed to vibrate the little tiny piece loose. The lever started moving fully and the problem was solved.
Good luck!
Fox
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Re: MKII with Jarvis Barrel Takedown Problem
I've looked in there with a light and cant see anything that looks off. The lever goes back half way then kind of spongy to the full rear. The slide comes forward and as it is coming forward it pushes the lever forward and the slide just stops.
I'm starting to think that the place I bought the 5.7 from gave me a jarvis barrel designed pre MKII.
See below photo of one of the barrels designed for the MK2 has that little notch. My standard barrel has it, but I'm not sure if the one in there does as I wasn't notch savvy before this happened. I made the assumption that the people selling me the thing with a specialized barrel would know that it was capable of being used in my model. I have not fired it as of yet because of this. What happens if I can't get this thing off?
MK2 Version Below (With Notch)
Pre MK2 Version Below (Minus Notch)
I'm starting to think that the place I bought the 5.7 from gave me a jarvis barrel designed pre MKII.
See below photo of one of the barrels designed for the MK2 has that little notch. My standard barrel has it, but I'm not sure if the one in there does as I wasn't notch savvy before this happened. I made the assumption that the people selling me the thing with a specialized barrel would know that it was capable of being used in my model. I have not fired it as of yet because of this. What happens if I can't get this thing off?
MK2 Version Below (With Notch)
Pre MK2 Version Below (Minus Notch)
Re: MKII with Jarvis Barrel Takedown Problem
Where did you get the barrel from?
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Re: MKII with Jarvis Barrel Takedown Problem
Should have gotten it from EA.
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Re: MKII with Jarvis Barrel Takedown Problem
Buffman wrote:Where did you get the barrel from?
Came as part of a package deal on a new MK2 and unused Jarvis barrel. Shows 04/14 as the date of receipt.
Still can't get the thing off.
Anyone know of any other methods for getting the slide off ?
Re: MKII with Jarvis Barrel Takedown Problem
Where are you located? Maybe another forum member can take a gander and help. On mine I know I have to hold the lever past the mush for it to break down.
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Re: MKII with Jarvis Barrel Takedown Problem
South Florida.grimmond wrote:Where are you located? Maybe another forum member can take a gander and help. On mine I know I have to hold the lever past the mush for it to break down.
Yah. Ive tried that. Problem is the slide, when it moves forward, pushes the lever forward before the slide even comes 1mm off the frame. I'm convinced they sold me a barrel that was not intended for the MKII. I was looking at this:
https://www.youtube.com/watch?v=Ul_jMfyPq_8" onclick="window.open(this.href);return false;
And it appears that all is not lost. I think an armorer will have to remove the two cotter pins just in front of the safety to internally disassemble the mechanism that appears to be holding the barrel / slide in place. I see no other way unless someone has had to deal with this before.
I took it apart with no problem to remove the original barrel. Had I known more about the Jarvis types I would have not exchanged it I think.
Lesson to be learned.
1. When ever getting an after market part make sure, even if your source is reputable, that all available documentation on the specific thing you are trying to achieve supports your goals.
2. I will be bringing the gun back to the store and causing a tiny stink about them not knowing what barrels they are selling with their firearms. If I had shot this with the wrong barrel in it, who knows what would have happened.
3. They didn't give me any paperwork on the serial number of the barrel. Although new, it could be on the 2008 recall list. Who knows. It could be an old barrel that was never taken out of circulation.
Needless to say, I'm pretty disappointed. Nearly 2G and problems already. My fault, yes. The gun store's fault....................priceless.
I will be sure to keep you all abreast of the developments after my return. If it goes poorly, I will be sure to let you all know the gun store / owner's name so no one makes the same mistake I did and trusts them. Of course, this is all speculation on my part, but I am pretty sure the barrel is the wrong one. Regardless, I should have gotten more paperwork. Noobs learn. I am pseudo-noob. This was my 8th gun purchase in several years and I'm close my eyes proficient (disassembly / reassembly) with each and every fire arm I own. First time purchasing a significant after market component (400+ dollar barrel). Trust only yourself. Do your homework FIRST. I guess I am saving this to read before I make any more gun purchases in the future. :clap:
Thanks for everyone's input to this point. I really appreciate it.
- panzermk2
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Re: MKII with Jarvis Barrel Takedown Problem
If you would have shot the MKI barrel in a MKII pistol you would have cracked the frame and permanently destroyed the gun.
You can send it to me/EA to be fixed.
You can send it to me/EA to be fixed.
Jay Wolf
Pr. Elite Ammunition
Pr. Elite Ammunition
"Engineers, the oompa-loompas of science!"
Be'ein Tachbulot Yipol Am Veteshua Berov Yoetz
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Re: MKII with Jarvis Barrel Takedown Problem
GOT IT !
Thank you YouTube and World of Guns.
https://www.youtube.com/watch?v=Ul_jMfyPq_8" onclick="window.open(this.href);return false;
0:51-1:07
The spring in front of the second cotter pin from the front is what is resting on the notch or notchless area when the slide is forward. Therefore the take down lever must be pushed harder to disassemble.
AND..........
It did. Easily.
My barrel:
Verdict...................NOT A MK2 Barrel as suspected.
Anyone who has this problem just reverence this. I can't believe I'm the first. I'm a bit embarrassed.
Thanks again everyone.
Thank you YouTube and World of Guns.
https://www.youtube.com/watch?v=Ul_jMfyPq_8" onclick="window.open(this.href);return false;
0:51-1:07
The spring in front of the second cotter pin from the front is what is resting on the notch or notchless area when the slide is forward. Therefore the take down lever must be pushed harder to disassemble.
AND..........
It did. Easily.
My barrel:
Verdict...................NOT A MK2 Barrel as suspected.
Anyone who has this problem just reverence this. I can't believe I'm the first. I'm a bit embarrassed.
Thanks again everyone.
- panzermk2
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Re: MKII with Jarvis Barrel Takedown Problem
Most folks around here get their barrels from me and we made sure within weeks of the MKII behind released we had a new barrel already being tested that would go onto fist all FsN's.
They very first person on the forum to get a MKII sent me their barrel so I had a sample, I had one on order but they got one first.
I not only worked with but did all the R&D testing for EFK and still have the very first MKII prototype barrel ever made that I still use to test ammo.
They very first person on the forum to get a MKII sent me their barrel so I had a sample, I had one on order but they got one first.
I not only worked with but did all the R&D testing for EFK and still have the very first MKII prototype barrel ever made that I still use to test ammo.
Jay Wolf
Pr. Elite Ammunition
Pr. Elite Ammunition
"Engineers, the oompa-loompas of science!"
Be'ein Tachbulot Yipol Am Veteshua Berov Yoetz
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Re: MKII with Jarvis Barrel Takedown Problem
After watching the YouTube video I posted above (World of Guns) I figured something like that could happen if my theory was correct about the barrel. Based on the mechanics of what you can see going on during firing and the fact that they matched with my supposition, there was no way in hell I was going to fire it until I figured out the problem.panzermk2 wrote:If you would have shot the MKI barrel in a MKII pistol you would have cracked the frame and permanently destroyed the gun.
You can send it to me/EA to be fixed.
Thankfully I was very ginger in my attempts at disassembly and everything appears to be okay.
Thanks so much for the offer, but it appears I may be all set. If I end up getting a different barrel, it will most likely be and EA unless the gun store refuses to return it. In which case I will get Jarvis to figure out which run it is and determine the safety if not ship it back for a swap if they will allow it. Who knows. This thing has no distinguishing marks on it to help me identify the date of manufacture (Jarvis Barrel). I bet they could look at it and see immediately.
Bill Jarvis responded to an email of mine nearly immediately and asked me to call tomorrow. I will and I'll make sure he puts up a huge caution stating...DON'T USE MK1 barrels in MK2 firearms, be sure to check prior to installation that you have the proper barrel / version match up. I bet the "universal barrel" they have put out is just a notched barrel. I can't imagine why a 2 in a 1 would be a problem, but I would never try it although it appears the the EA barrel is just that. The block (I believe its called the locking block) where the barrel notch is located appears (during side by side comparison with the factory barrel) to be about 1 mm larger (on the Jarvis MK I) in overall length compared to the notched / factory barrel.
Thanks a ton for the respond panzermk2 !
Last edited by Skeetorius on 25 Jan 2015, 20:40, edited 1 time in total.
- panzermk2
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Re: MKII with Jarvis Barrel Takedown Problem
This coffee chat talks about the new, at the TIME, barrel.
Jay Wolf
Pr. Elite Ammunition
Pr. Elite Ammunition
"Engineers, the oompa-loompas of science!"
Be'ein Tachbulot Yipol Am Veteshua Berov Yoetz
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Re: MKII with Jarvis Barrel Takedown Problem
Awesome. Great stuff. Subscribed.panzermk2 wrote:This coffee chat talks about the new, at the TIME, barrel.
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Re: MKII with Jarvis Barrel Takedown Problem
Ill say this. Your barrel is much sexier. If they take this thing back, which they damn well better, I will be getting one from you. I will let you know later this evening. If they take it back, Ill be placing my order. I would not expect Jarvis to take a second hand barrel to make it right if they did not take it back. If they don't take it back Ill sell it on Gun broker and never shop there again. I'm pretty sure I can find another ammo source as well. Thanks again Jay.panzermk2 wrote:Most folks around here get their barrels from me and we made sure within weeks of the MKII behind released we had a new barrel already being tested that would go onto fist all FsN's.
They very first person on the forum to get a MKII sent me their barrel so I had a sample, I had one on order but they got one first.
I not only worked with but did all the R&D testing for EFK and still have the very first MKII prototype barrel ever made that I still use to test ammo.
Re: MKII with Jarvis Barrel Takedown Problem
Lots of good info here that I was looking for.
Just picked up a MarkII on Saturday to go with my PS90.
I am going to SBR my PS90 and saving the cash now for the threaded barrel that Elite sells.
Just picked up a MarkII on Saturday to go with my PS90.
I am going to SBR my PS90 and saving the cash now for the threaded barrel that Elite sells.
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Re: MKII with Jarvis Barrel Takedown Problem
Well, I took the barrel back in and no one in the store was aware of the difference. So, I got to be a bit of a safety educator.
They refunded me the cost of the barrel AND sold me a 500 brick of 5.7x28 federal at a great price. :thumb:
Thanks for everyone's help. I hope this helps out anyone who might run into this problem as I honestly could not find any similar report in my searches. :clap:
They refunded me the cost of the barrel AND sold me a 500 brick of 5.7x28 federal at a great price. :thumb:
Thanks for everyone's help. I hope this helps out anyone who might run into this problem as I honestly could not find any similar report in my searches. :clap:
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