New JR Carbine, what do I need to know?

migrant hunter

migrant hunter

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So Santa is bringing me a JR Carbine .40, hopefully on Monday(actually, my past experience with Santa has not been good so I bought myself one).
I know some folks have complained of loose screws and the charging handle coming loose. What should I be checking for before I hit the range? Not planning on dropping the trigger out too often, don't see how most cleaning can't be done by running the bolt out the back. Tempted to loctite anything that might come loose.
Experiences? Thoughts? If you want to bash the JR, then just keep walking. I know it's not a H&K, but it cost $850 and I can load for it for pennies.
 
I don't have any Loctite on my .45 on any other parts aside from the buffer tube extension...which your .40 won't have. Take it apart and give it a good clean and lube and you should be good to go. Just make sure everything's snugged up...never had a screw come loose on mine yet.
 
loctite that bloody changing handle.
and get something to help you load magazines cause 10/10 glock magazines are hard to load full.
 
LOL, thanks. I have a Maglula loader. Just got a Glock mag today, never thought to try the loader on it.
EDIT-just tried the loader, works fine.Thumbs intact.
 
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You'll need a wrench to tighten it up after everything comes loose.
On mine both the butt-stock and barrel after about 150 rounds.
 
To add my personal experience to the discussion; after the purchase, I've initially put at least 150 rounds and no loose parts. After about the 3rd cleaning I did NOT tighten the charging handle to my internal comfort-zone spec's and the handle came loose after about 75 rounds - wish JRC would come up with a recommended torque spec. Personally, I avoid Loc-tite unless actually recommended.

The only odd thing that came up on my JRC is the charging handle screw, which takes a 9/64 Allen key, actually did not fit - now it's not a problem - so either one or both were out of spec or were on the maximum end of their tolerance. I have never had an Allen Key/Socket head screw fitment issues in the past, and I thought I have seen my fair share of them.

Now, in my case I am talking about a 9mm JRC, and from the sound of it, they seem to have the least amount of issues, from my limited observation.
 
On my .40 I loctited the main receiver screws that hold the 2 1/2s together. I do Loctite the charging handle screw most times, if I don't it starts to loosen after a couple of hundred rounds. I find mine runs best fairly wet lots of G96. You'll need a few mags, so get working on that ;) Get a good AR wrench as you need to take off the castle nut to do a full strip clean. I generally run a few patches down the barrel after each use and surface clean, then spray the bolt with G96. Haven't done a full strip / clean in a while and it seems to run better a little "wet and dirty".

Fun gun to shoot at short range, just don't expect much at longer distances, the bullet drop is big.
 
I am surprised how many people here are saying to run it wet! I got mine when they first came out I ran mine dry and never had a bit of problem with it. It cycled super smooth with anything I put in it. It was a super reliable gun for me, before I sold it to pay for house repairs! Still think I will pick one up again.
 
Like Rotaxpower, I run mine bone-dry without any noticeable issues.

To add to my previous post; when I first got my JRC, I ended up getting every kind of 9mm Luger from one of the local shops and ran that along with the Canada Ammo's (750 round) Ukrainian made stuff on a 50 yard range and accuracy-wise I could not tell any difference - the Ukrainian ammo is bit dirtier though.

And yes, pre-purchase I did initially consider Thureon Defense as well. Though the take-down on the TD is very nice, I decided to save the 300 Canadian Pesos and put it towards some good optics as the JRC I got had none.
 
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kingdarb said:
Seriously?? Lol they aren't hard to load. Maybe a bit stiff at first but not too hard.
Click to expand...
I only have 2 glock magazines, and the last 2 are super hard. As in I have to attempt to load the last round a couple times before I get it.
Hopefully they break in, not sure how used they were, I am second owner.
 
I bought a KCI 10/33 rd mag and a 10 rd mag, then there's the real Glock mag that comes with it. Seen mixed reviews on KCI.
Any actual experience here with them? Also, there is'nt much choice in bullet profile of .40 as it's crammed into a 9mm length action.
Hope that is'nt a feed issue. My Norc NP 40 jammed like crazy till I figured the bullets need to be seated quite short.
 
Bought a KCI before and the follower wouldn't even work on it...lol. Spring didn't have enough tension to push the rounds to the top. Luckily, got a refund. I have three Glock 21 mags, and the last couple of rounds are pretty tight.
 
lone-wolf said:
I only have 2 glock magazines, and the last 2 are super hard. As in I have to attempt to load the last round a couple times before I get it.
Hopefully they break in, not sure how used they were, I am second owner.
Click to expand...

10/17 or 10/15's are the only way to go for ease of loading. I had the 10 round mags for my G17 and found it to be a pain when loading my mags for IPSC shoots. Bought a bunch of 10/17 and sold the 10 round mags. I also bought a bunch of 10/15 mags for my .40
 
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