The JR Carbine Thread

What? It has nothing to do with this and this and this. It has everything to do with barrel length. Under 470mm it would be restricted and would have to be reclassified as such by a gun shop.

Unless he cut the barrel down, then it would be prohib not restricted, but if it was a manufactured barrel below 18.5", then it would be classified as restricted.

:p, so it's a little to do with this way, or that way.
 
IMG_20140619_180511.jpg


IMG_20140619_180530.jpg


IMG_20140619_180521.jpg
 
Last edited:
I just bought a couple of those strikefires too, WS had/has? them on sale for $160

So where should I start buying 9mm mags for this gun? What's a good price?
 
Unless he cut the barrel down, then it would be prohib not restricted, but if it was a manufactured barrel below 18.5", then it would be classified as restricted.

:p, so it's a little to do with this way, or that way.

But if it was done by a gun shop and reclassified it won't be prohib.
 
I can't believe they even sell a 45 version I have not heard much good about em. I want a carbine that takes 1911 mags but just can't spend 1000$ for such a problem gun.

I only bought it because I wanted the thump of a 45 and heard that the problems were solved. 2 Glock mags - 1 OEM and the second off the rack and both will jam on the 8th or 9th round more often than not. I'm not happy, and I'm not happy that JR expect me to phone their gunsmith rather than simply telling me the secret to getting it running right, because I cannot phone during business hours.
 
What? It has nothing to do with this and this and this. It has everything to do with barrel length. Under 470mm it would be restricted and would have to be reclassified as such by a gun shop.
Well, actually it does. If the barrel length is less than ......, the overall length is less than...and it's centre fire (rimfire can be shorter overall. My SR-22 is over 3 in. shorter), and if it came that way from manufacture or was modified after it left the factory, THEN it is restricted or prohibited. If you look at the legislation, it is worded very similar to this. As for having a gunsmith cut it down and the gun re-classified...I suppose in theory that could happen...in theory. I don't think the language of the legislation currently would allow it though
 
I only bought it because I wanted the thump of a 45 and heard that the problems were solved. 2 Glock mags - 1 OEM and the second off the rack and both will jam on the 8th or 9th round more often than not. I'm not happy, and I'm not happy that JR expect me to phone their gunsmith rather than simply telling me the secret to getting it running right, because I cannot phone during business hours.

Is your .45 a pre-fix version, or a post-fix version. I think they did recognize they had a problem with the .45's, did some re-design work and were sending out replacement parts to any owner they could contact to conrrect the problem. You may want to touch base with them; I don't think it's an issue of them "telling you the secret"...they need your mailing address to send you the parts.
 
They could have gotten all of that in email. It's a new carbine as well.

I talked to the shop I got it from and he says that it's probably burrs inside the Glock mags and to either put rounds thru until they smooth out or take them apart and clean up the flashing. Someone else had the same problem and that fixed it.

Next up - how do you get those floor plates off without breaking the sodding things? Yes I've pushed the button. Yes I've resorted to a plastic mallet....
 
With all of my mags, I sprayed the crap out of them with WD-40, then pushed in the button, then used the plastic mallet. The first time they come off is the bad one. After that, all come apart just fine now
 
With all of my mags, I sprayed the crap out of them with WD-40, then pushed in the button, then used the plastic mallet. The first time they come off is the bad one. After that, all come apart just fine now

Thanks, man. I'll hit em with the oil.
 
well he's is my experience with the JRC we have in 40 the rifle works great now but for the longest time it wouldn't feed right it would miss feed every 2nd round. your unable to load the rifle with the tenth round in the magazine unless the bolt is fully to the rear. after 500 rounds it still doesn't load with a ten round mag. but it no longer miss feed rounds. about a month ago while cleaning the rifle we found a bulge of .015". we called JRC and with in minutes we had authorization to send the rifle to Ellewood Epps so that the barrel could be replaced. My experience with the company was very good and the service from Epps was great. The rifle is fun to shoot if you find a good one used they're fun
 
I just got a 9mm JRC this week , runs great
Do the AR forestocks fit directly onto the JRC barrel nut ?
I have a red dot on it now
I might want to put a carry handle and a front sight , is there a AR front sight that can be attached to the barrel ?
 
I reversed the mag springs in my 2 45ACP glock mags, cleaned the magwells and hosed the insides down, along with the spring and the follower with jig-a-loo graphite spray.

I had 2 10th round FTF with both mags at first, then the gun ran flawlessly for the remainder of my 200 rounds.

Interestingly in that even though the manual had said that the included mag had been modified to correct feeding problems I detected no difference between it and an aftermarket Glock mag


NEXT

My forend tends to drift out of alignment. Can you get some sort of bridge or clamp to tie the forend rail firmly to the receiver rail? I run iron sights and it's getting annoying to watch my zero drift because the forend starts to creep under recoil.

I was thinking of an ALG defense rail, but from what I've read above the receiver indexing lugs might need to be removed anyway for it to fit.

Also - these got a milspec or commercial tube? Thinking I want to ditch that awful butt stock
 
Last edited:
My forend tends to drift out of alignment. Can you get some sort of bridge or clamp to tie the forend rail firmly to the receiver rail? I run iron sights and it's getting annoying to watch my zero drift because the forend starts to creep under recoil.

I hate that damned fore-end. I replaced it with a "take-down tube" (which used to ship directly to Canada from the JR site 8 months ago.. not anymore) which is just a 10" (or 8, not sure) tube without rails. If that tube comes loose, you can immediately tell and just tighten back up. I wrapped the tube with some camo bandage, the re-stick kind, gives me a nice grip on the tube. Then I put a quad-rail barrel mount towards the end of the barrel and my front sight on that, on a small riser to line the sights up. This gave me a spot for a bipod to mount.. and remove.. it looked funny way out on the front, with the legs folded forward exceeding the muzzle.

I found that when I'd tighten the nut with the wrench, the fore-end would slightly twist out of alignment, no matter how tight I made it first. Some people use their EoTech's for alignment, but I don't recommend that. I tried using some C-clamps and wood to keep the rails aligned while in the vise, and the wood would just crush as the rail moves out of alignment. PITA.
 
Damn... I would have hoped that somewhere out there someone sold a bridge of some sort. Something like a scope base section that would just clamp the 2 sides together...

I was thinking of something like an A2 clamp on front sight gas block type of deal (assuming the barrel is the proper diameter). I'm at the point where I don't want to dump money into it just for the sake of experimenting, though..
 
Back
Top Bottom