I would most likely say no.Using a 5.56 in an AR-10 or An XCR-M would require some type of special magazine if it were to work properly.It's similar to chambering a bolt action rifle in .308 Winchester(short action) in a long action rifle that will fit a 30-06 length cartridge.Given proper magazine adapting,it will work but the action and overall weapon will be somewhat larger and heavier than necessary to accommodate the smaller round.so if you can't go from XCR-L to the .308, will you be able to go from the .308 to 5.56? will the XCR M be interchangeable as well?
I wouldn't say that.The 7,62x51/.308 might be the initial introduction caliber,but why would they stop there when so many other fine cartridges are based on that case.Say the .243 Winchester,.260 Remington,7mm-08 and the .338 Federal.The best part about these caliber exchange kits is that all you should need to swap is a different barrel,because they all use the same case,therefore magazines and bolts should be identical.Which of course means cheaper conversion kits. :2cents:The XCR-M is strictly a .308 Winchester rifle.
Correct,but I never claimed it would . ;D Maybe in my first post I should have been more clear.It will never work unless designed to do so,and since no other(than I am aware of) manufacturers have attempted this,I would say most likely the "M" will not be either.I didn't mean to sound like I wasn't sure if it would work or not.It has never been mentioned by Robinson,to my knowledge anyway.True, but any caliber kits for the XCR-M still will not fit the XCR-L and vise versa.