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JR carbine 9mm.

This is a discussion on JR carbine 9mm. within the Rifles forums, part of the Rifle & Shotgun Forum category; Originally Posted by weblance Im going to open this old thread, instead of starting a new one first. I just ordered, and received a JR ...


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Old December 3rd, 2016, 08:20 PM   #91
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Im going to open this old thread, instead of starting a new one first. I just ordered, and received a JR Carbine, Gen 2 in 9mm. I got it from Buds for $589. Its a black takedown. I also ordered the backpack from JR Carbines. Its for the Takedown model. Because its cold here I haven't had a chance to shoot it yet, but Im excited to do so. It came with a 17 round ETS magaazine, which I knew nothing about, but a quick search shows its a very reliable magazine. Based on that, I also picked up two 31 round ETS mags from my local shop, and ordered two 33 round Glock mags, and the 50 round Korean drum from an online supplier.







Nice rifle Weblance. Ur gonna love it. Congrats.



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Old December 4th, 2016, 05:50 AM   #92
 
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I have owned my JR Carbine 9mm Gen 2 for a couple days now, and have had the chance to really look it over closely. These guns are beautifully made. The fit and finish is perfect, and I see no indication that anything is cheaply made. I do however have one minor complaint. The buffer tube has to be removed to pull the bolt. While this isn't my complaint, and I knew the JR Carbine disassembled in this manner, the complaint is that no tool is provided to remove the buffer tube. I own several AR-15s, but I don't have a buffer tube wrench. A buffer tube wrench isn't a common tool like a screw driver or Allen wrench. I want to tear this rifle down, and inspect and clean it properly before I fire it. I'm not the guy who buys a new firearm and takes it to the range and then complains on internet forums that my new gun doesn't run correctly because I thought cosmoline was a proper lubricant. I ordered a buffer tube wrench, but it hasn't arrived yet. A tool is provided to torque the forearm tube. Why not a simple tool for the buffer tube nut? JR Carbines has addressed this issue with the newest carbines, they now come with a quick detach buffer tube. I chose to save $150 and bought a NIB Gen 2, so I guess I really have no reason to complain, but I thought I would post my thoughts.
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Old December 4th, 2016, 10:44 AM   #93
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I can relate to those sentiments on the castle nut wrench, and doing a complete tear down BEFORE firing it. I like to do that also. . I bought one off ebay for about $5.. Ive only used it 3 times in approx 2000 rounds fired, ( 1st NIB tear down, 500 rounds, 1000 rounds,, ) but that really wasnt the point. It would have been nice if they tossed one in the box. Since winter is here and my range shooting is pretty much done until spring, I am going to tear it down and clean it so its not laying around all winter dirty. I will still use it for random varmint hunting, but it wont see the use it has over the summer. And putting a dirty firearm in the cabinet just bugs me.

I dug up a you tube video for my first tear down. It was very helpful, and after rewinding it a few times during the process, tearing it down is a piece of cake.

FYI, I did notice at the 1000 round cleaning, there was starting to get some carbon build up around the extractor and in the end of the bolt. Considering the CCI metal case is so dirty, I am surprised the build up was not much worse. The design of this rifle seems to blow most of the powder residue out the side or down the mag well. Very little ever seems to make it to the rear of the bolt.

My factory trigger had some creep, but you CAN feel the break, so Ive no intention of swapping it out at this time. The reset does have an audible click.

IMO, The guy that designed this rifle was a smart cookie. The JRC is VERY accurate and will just keep running even when you dont clean it. I wouldnt trade mine for (2) AR's.

In fact, Im probably going to buy another one.
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Old December 4th, 2016, 02:07 PM   #94
 
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I have a new Timney Competition 3 lb trigger that I bought for one of my ARs that I haven't installed yet. My JR Carbine trigger is better than both my original Mil-Spec AR triggers, but no where as good as the drop in Timney. I haven't decided yet what Im going to do with the JRC trigger. I will shoot it first before doing anything, and I have about 600 rounds on hand, so I will put quite a few rounds through it on its first range trip. It could possibly break in and be just fine, but I will be honest... I am a trigger snob
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Old December 6th, 2016, 07:01 PM   #95
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Originally Posted by weblance View Post
I have a new Timney Competition 3 lb trigger that I bought for one of my ARs that I haven't installed yet. My JR Carbine trigger is better than both my original Mil-Spec AR triggers, but no where as good as the drop in Timney. I haven't decided yet what Im going to do with the JRC trigger. I will shoot it first before doing anything, and I have about 600 rounds on hand, so I will put quite a few rounds through it on its first range trip. It could possibly break in and be just fine, but I will be honest... I am a trigger snob
Did ya get that thing to the range yet?
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Old December 6th, 2016, 07:26 PM   #96
 
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Did ya get that thing to the range yet?
No. Its freezing cold here, and it rained all day. Its killing me. I did get my buffer tube wrench, tore it all down, looked it all over, switched the charging handle to the right side. Nice little rifle. Surprised how heavy the buffer is.

I cant just step out back and fire off a few rounds. I have to go to the range, and since I'm a member of a nice outdoor range that is somewhat expensive, I'm not paying to shoot inside. I want to sight in the red dot for 50 yards, and there is no where close that has that length indoors
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Old December 6th, 2016, 08:11 PM   #97
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Weather here been pretty nasty also. Same same, freezing rain & cold.
Been almost to nasty to hunt. The deer just aint moving anyway.
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Old December 26th, 2016, 10:51 AM   #98
 
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OK... I got a chance to shoot my JR Carbine today. I had a couple issues but once I found the ammo my JRC liked, it ran perfectly. First issue... several times, it dropped the ETS magazine that JRC ships these guns with. Mine came with a 10 round ETS magazine, and after it dropped for the third time, I gave up on it. I had two Glock factory 33 round mags, and they functioned perfectly, and stayed locked in.

Now the ammo. It doesn't like Speer Lawman 147 gr. flat nose. It FTFeed several times. It also did the same with Speer Gold Dot +P 124 gr. Once it jammed the first Gold Dot, I stopped with those because of the cost, and because they run well in my other guns. It also FTFeed Federal 115 gr. Hi-Shok HP. Those felt very underpowered compared to the 124 gr. ammo I had. I didn't run many of those either.

Now the good. It functioned flawlessly with Blazer 124 gr. FMJ. I ran 350 rounds, through the Glock 33s, and it was perfect. Not a single issue. It also ran 150 Remington Golden Sabers +P 124 gr. perfectly. No issues. Those were the last rounds through the carbine, and that ads up to 500 perfect rounds.

It seems to run round nosed bullets very well. The Blazers, and Golden Sabers are round nosed. The flat nose Speer, and the truncated cone Gold Dot, and Hi-Shok gave it fits. I didn't do any polishing of the ramp, or chamber. Perhaps a good polish, and a good break-in will correct its dislike for anything other than round nosed ammo. I have a local dealer who has a continual stock of Blazer and Golden Saber, so I will just feed my carbine those.

Once I had my red dot close, I just hammered away, not really trying for tight groups, but more checking function. The picture below is the last target I shot. I rested my forward wrist on a bag, and held the forearm. The distance was 25 yards. The picture is the last 100 rounds of Remington Golden Saber. The gun is certainly very accurate, and doesn't seem to shift as it heats up. I didn't give any consideration to letting it cool, I just loaded mags, fired a shot every couple seconds, and fired until empty. The 3 or 4 hits off the target at 2 o'clock were from dialing in the optic. Next range trip, I will really concentrate on adjusting the dot to get the POI perfect.

I enjoyed shooting my carbine. The trigger is good, certainly much better than a Mil-Spec AR trigger, but not as crisp as the Timneys in my ARs. At this point, I don't feel the need to replace it. The gun is easy to operate, and recoil is mild. The build quality is superb. These guns are quality built, in the USA, and have a lifetime warranty to the original owner. I have wanted a 9mm carbine for a long time. I'm going to have a lot of fun with this one.


Last edited by weblance; December 26th, 2016 at 10:54 AM.
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Old December 26th, 2016, 05:57 PM   #99
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Nice shooting weblance. Im glad you posted a detailed range report.
Ive only ever shot round nose ammo in mine, various grain, but no failures.

Good to know there might be feeding issues with others.

My 10 round factory mag works OK. No issues with it. The rest are ALL 17 round Gluck mags, all 6 work great.

Since its about $215 a case OTD & readily available, I buy Blazer , so I will just stick with that.
Glad to hear you are liking it. Ive noticed at 100+ yards, when the barrel is hot enough you cant hang on to it, the normal tack driving accuracy drops of a tic & the group opens up a whisker. We had this one kinda smoking a little a few times, I try not to do that anymore.

Mine also is getting kinda a green tint inside and on the end of the barrel. Which wont scrub off and I really dont know the what or why.

Glad to hear you like your JR Carbine.
They are a good quality carbine IMO, and a pile of fun.
I'm probably going to buy another when Im reasonably sure I can without the wife killing me. .
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Old December 27th, 2016, 08:16 AM   #100
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Old December 27th, 2016, 10:15 AM   #101
 
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I've been thinking I want to scope my JRC, but I don't want to lose the red dot. I'm not into hanging things all over my rifles, so to keep things simple, it would have to be an illuminated scope. Mueller makes a 2-7x32 with a cross hair and centered red dot. That might just be next for my JRC

Mueller 2-7x32 Multi Shot Mueller Optics
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Old December 27th, 2016, 10:57 AM   #102
 
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Quote:
Originally Posted by weblance View Post
No. Its freezing cold here, and it rained all day. Its killing me. I did get my buffer tube wrench, tore it all down, looked it all over, switched the charging handle to the right side. Nice little rifle. Surprised how heavy the buffer is.

I cant just step out back and fire off a few rounds. I have to go to the range, and since I'm a member of a nice outdoor range that is somewhat expensive, I'm not paying to shoot inside. I want to sight in the red dot for 50 yards, and there is no where close that has that length indoors
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Weather here been pretty nasty also. Same same, freezing rain & cold.
Been almost to nasty to hunt. The deer just aint moving anyway.
so you guys do not shoot your guns when it's freezing and raining, you do get robbed when it's freezing you know, I would suggest just going once when it's seems too cold to go to the range just to see how it functions. I hate the cold too but I can tell you exactly how all my firearms act when shot at temps below 30*. IMO it is a requirement for a gun owner/enthusiast to know this but it's your firearm. Shooting in freezing weather isn't as bad as you would think.
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Old December 27th, 2016, 11:40 AM   #103
 
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Quote:
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so you guys do not shoot your guns when it's freezing and raining, you do get robbed when it's freezing you know, I would suggest just going once when it's seems too cold to go to the range just to see how it functions. I hate the cold too but I can tell you exactly how all my firearms act when shot at temps below 30*. IMO it is a requirement for a gun owner/enthusiast to know this but it's your firearm. Shooting in freezing weather isn't as bad as you would think.
Shooting isn't bad. Loading magazines is. Even with a Maglula. Since my JRC wasn't going to be pressed into home defense duty until tested, I decided it could sit until a nicer range day. I have other guns to protect home and family. I actually froze my EDC once before testing. just to see. It functioned perfectly
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Old December 27th, 2016, 01:36 PM   #104
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so you guys do not shoot your guns when it's freezing and raining, you do get robbed when it's freezing you know, I would suggest just going once when it's seems too cold to go to the range just to see how it functions. I hate the cold too but I can tell you exactly how all my firearms act when shot at temps below 30*. IMO it is a requirement for a gun owner/enthusiast to know this but it's your firearm. Shooting in freezing weather isn't as bad as you would think.
Thanks for the "EXPERT" freezing weather advice from sunny Florida.

Appreciate that.
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Old December 27th, 2016, 02:50 PM   #105
 
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DC, I've only been here for 8mo's. I moved from So.Dakota but your welcome nonetheless.
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