Well, here is mine... just finished putting it together. Low-res pics, sorry (didn't want to deal with re-sizing as I am stepping out):
Anyway,
It's a JR Carbine in .40S&W.
What I will do is post pics of the parts/work done with an explanation under the pic. Hope the format works. Enjoy
In order to swap handguards, the barrel nut has to be changed. Unfortunately the JR-Carbine (for reasons unknown) didn't take this into consideration when designed. No matter, this spacer is placed between the barrel nut and "extension" on the barrel; the spacer fills the gap when using other AR-specific barrel nuts.
Another pic of the spacer. I also purchased a Midwest Industries gas block. It's the only gas block that I could find that is on the same plane as the upper-receiver.
I personally really dislike set-screw gasblocks, so in addition to having the barrel threaded for a flash-hider, I had a groove milled into the bottom of the barrel. The obvious reason is to prevent the gas block from rotating, but it now also allows for perfect alignment of the gas block with the upper receiver. I had the length of the groove made to accommodate Carbine~Rifle handguards (smart thinking huh?)
Big thanks to Casey at Tactical Ordnance. He's the man I sent the request to. I like his work, reliable and fairly decent turn-around times.
My only regret. I forgot to request that the barrel be turned down a bit between the gas block and the muzzle. Big mistake, I ended up scratching the S**T out of the barrel in that area as it is a high friction point when installing the gas-block. Total piss-off, but lesson learned for next time.
Oh and yes, I do realize that it is now no longer free-floating. But, in all honesty I don't see free-float vs non-free float making much difference at 50m, especially with the rifle being chambered for a pistol round.
The rifle unloaded weighs 8.2lbs.
Any questions?
Anyway,
It's a JR Carbine in .40S&W.
What I will do is post pics of the parts/work done with an explanation under the pic. Hope the format works. Enjoy
In order to swap handguards, the barrel nut has to be changed. Unfortunately the JR-Carbine (for reasons unknown) didn't take this into consideration when designed. No matter, this spacer is placed between the barrel nut and "extension" on the barrel; the spacer fills the gap when using other AR-specific barrel nuts.
Another pic of the spacer. I also purchased a Midwest Industries gas block. It's the only gas block that I could find that is on the same plane as the upper-receiver.
I personally really dislike set-screw gasblocks, so in addition to having the barrel threaded for a flash-hider, I had a groove milled into the bottom of the barrel. The obvious reason is to prevent the gas block from rotating, but it now also allows for perfect alignment of the gas block with the upper receiver. I had the length of the groove made to accommodate Carbine~Rifle handguards (smart thinking huh?)
Big thanks to Casey at Tactical Ordnance. He's the man I sent the request to. I like his work, reliable and fairly decent turn-around times.
My only regret. I forgot to request that the barrel be turned down a bit between the gas block and the muzzle. Big mistake, I ended up scratching the S**T out of the barrel in that area as it is a high friction point when installing the gas-block. Total piss-off, but lesson learned for next time.
Oh and yes, I do realize that it is now no longer free-floating. But, in all honesty I don't see free-float vs non-free float making much difference at 50m, especially with the rifle being chambered for a pistol round.
The rifle unloaded weighs 8.2lbs.
Any questions?


















































