Robarms XCR FAQ post

The LAR 10 round mag was designed for a pistol. The mag was not designed for rifles and pistols but happens to fit both.

I do suggest printing RCMP special bulletin 72, read it and know it, and carry it with you.

You're good to go.

Enjoy the new rifle.
 
9x19p said:
The LAR 10 round mag was designed for a pistol. The mag was not designed for rifles and pistols but happens to fit both.

I do suggest printing RCMP special bulletin 72, read it and know it, and carry it with you.

You're good to go.

Enjoy the new rifle.
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Thanks for the info
 
I looked through the XCR Manual and I can't find a parts schematic.

Anyone know where to find one of those?

Reason I am asking is that my folding stock has excessive amount of wobble in it. Terribly annoying.

I read through the user manual and found the part that refers to adjusting the folding stock.

It appears that I have lost the adjusting screw that compensates for stock wobble.

Does anyone know the part number for that screw? Or the specs for it so I can find one to replace it?
 
dns said:
I looked through the XCR Manual and I can't find a parts schematic.

Anyone know where to find one of those?

Reason I am asking is that my folding stock has excessive amount of wobble in it. Terribly annoying.

I read through the user manual and found the part that refers to adjusting the folding stock.

It appears that I have lost the adjusting screw that compensates for stock wobble.

Does anyone know the part number for that screw? Or the specs for it so I can find one to replace it?
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Parts Schematic PDF is this one:
http://xcr.robarm.com/L Assemblies.pdf
 
Howdy guys!

It is starting to look like I have been scammed on the used XCR........

I ordered a new one from Wolverine last week and it got here today.
I didn't necessarily want "Canadian Camo" but I did want a heavy barrel and that is the color they had in stock.

Can't wait to get it out and run a few rounds thru it !! :)
Hopefully Thursday if I can get caught up at work......




Question .... I want to put a grip on the bottom but I can't figure out for sure what rails I need for the key mod.
Wolverine has some "key mod rail sections" ... these ones http://www.wolverinesupplies.com/details/16129/Midwest-Industries-Key-Mod-Rail-Section-375.aspx
Is that what I need? What about something longer?

Thanks
 
wixx said:
Excuse my stupid question, but how can you tell the difference between the old xcr trigger and the new one? I know the answer is on here somewhere but I really don't want to dig through a few hundred posts.
Any help would be greatly appreciated from this super noob. lol
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if you pull the trigger and think the safety is on until the gun goes off, you have the old style.

ithacaturkeykilr said:
I think the old trigger was known for having trigger slap.
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zreturns nailed it about trigger slap. lower gas setting=much more comfortable,.
 
Just a quick question that may have been answered already but I am not going through all 138 pages of this thread to find it. Is anyone running their gas system on S and is there any problem with this if the gun cycles fine?
 
lbj88 said:
Just a quick question that may have been answered already but I am not going through all 138 pages of this thread to find it. Is anyone running their gas system on S and is there any problem with this if the gun cycles fine?
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If it's ejecting ~10ft on setting S then the gas port might be a bit big, but if its running fine, then its running fine, no?

Just don't move it up to setting 4 if its kicking the brass out on S.
 
Skin said:
Awesome thx!!
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You're welcome! :)

lbj88 said:
Just a quick question that may have been answered already but I am not going through all 138 pages of this thread to find it. Is anyone running their gas system on S and is there any problem with this if the gun cycles fine?
Click to expand...
I run mine on Level 1 and it works great and send the brass at 15 to 20 feet.

Running on the "S" setting is for XCRs fitted with suppressors and shooting with a subsonic load (Fortunately for our southern neighbors).
Running on "S" completely eliminates any and all "blow-back" when using a suppressor.

XCR has four gas ports, each looks to be about 75% the size of the next larger port.
The #1 port looks like it is 75% the size of #2. #2 looks to be 75% the size of #3 and so on.

The smallest or #1 port is for the highest pressure ammo you intend to use and the largest or #4 port is for ammo with the least ammount of pressure.

The difference with the new gas valve is that the #1 port looks like it is only 40% the size of the #2 port which would be a 35% size reduction over the original Gas Valve.
With the original Gas Valve it has a sizable amount of gas blow-back coming from the upper to lower joint with a greater concentration coming from the upper receiver lock and charging handle.

Felt recoil is greatly deminished on the #1 setting and almost feels like shooting a .17HMR or .22 magnum.
 
canadiansurvivor said:
If it's ejecting ~10ft on setting S then the gas port might be a bit big, but if its running fine, then its running fine, no?

Just don't move it up to setting 4 if its kicking the brass out on S.
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Ok thanks. I put it on S thinking that was single shot and was quite confused when it was kicking the brass out like normal (around 7 to 8 ft) I have since then went through the owners manual again to figure out where single shot is but didn't know if I should keep running it on S.

This is with 36 grain varmint grenades running about 2700 fps.
 
lbj88 said:
Ok thanks. I put it on S thinking that was single shot and was quite confused when it was kicking the brass out like normal (around 7 to 8 ft) I have since then went through the owners manual again to figure out where single shot is but didn't know if I should keep running it on S.

This is with 36 grain varmint grenades running about 2700 fps.
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To close the gas port completely (to make it run like a bolt action rifle / single shot), you have to turn the gas knob between 4 and S and check if the plug doesn't get out by hand.
Because if you put it in the space between the 1 and 2, it's to take the plug out and if you shoot the rifle that way, you'll send the plug downrange, losing it forever! :rolleyes:

Here it is on level 2 setting:

sddefault.jpg
 
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