- Location
- Kamloops B.C
M on top and L (7.62x39) on the bottom.
Robarms XCR FAQ post
- Thread starter SIGGER
- Start date
M on top and L (7.62x39) on the bottom.
- Location
- Kamloops B.C
Do you have your owners manual close by? The newest should say "revision H" right on the front
I have had mine for a lot longer than 5 months, well over a year and my serial number is about 85 units after yours. Mine is a revision H
I have it...Awesome...
Thanks McFlurri.
Referring to the older gen XCR I had, comparing the bolt/firing pin steel between the same price gun such as the Tavor and the XCR, you'd be amazed in the quality difference.
Tavor
From my limited technical vocab, I'd say the Tavor bolt steel has a hint of "brown" color to it which looks like it's been heat treated very well at the factory. Metal to metal wear during firing cycle does not equal to instant surface finish break down and show the shiny metal underneath. You know that when the surfaces are so smooth, there's not going to be many stress risers, thus it should be very durable.
XCR(Older)
Looking at my XCR bolt, it is riddled with rough cuts along the bolt shaft's circumference, the bolt rotating cam was surrounded by machining marks which digs into the shaft itself. I suspect that while they were machining the shaft out from larger diameters, the cutting tool was vibrating causing uneven cuts. As for the surface treatment, I'd compare it to the SKS moving parts surface finish (again, I apologize for lack of technical vocabs), which seem to break down quite easily. But then all of these probably doesn't affect the functionality at all. It's just that when you're paying top dollar for these rifles, you'd expect the most important internals would at least show a good degree of workmanship.
Besides the Tavor, you can compare it with the SL8, ACR or even the good ol AR15 BCG and you'd find the same results.
However, the machining looks so much better on your gun than previous generations. What annoys me about Robinson Arms is how they constantly update and change their designs to improve quality. It's almost like chasing iPhone generations where you'll always feel inferior when the newer and better one comes out once in a while.
That said, I'm still looking to buy another one
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I think first of all, your new barrel will definately have a different point of impact compared with your original barrel.
Secondly, ACOGs are supposed to specifically marked for a caliber(never heard of 7.62x39), so you'll have a bit different compensating to do.
But if you're talking about within 100m targets, I would first test to see how much difference the point of impact between the barrels is. If its only 1 MOA, I wouldn't worry too much, or just mentally adjust for it.
Yes you will need to adjust it. You will likely still be on the paper so no need to get very involved
This would depend on the ability of the TA31 mount and the Barrel to return zero. Usually when you're removing one of these parts, it maintains 1 moa accuracy. But when you're removing 2 parts....it becomes more inaccurate.
One suggestion when remounting the scope. Press the scope "forward" as you tighten the mounts. This is because under recoil the gun moves rearward and the scope moves forward. This way you're anticipating the eventual shift of the mount forward and saves you bullets in between the time.
I hope this helps!
