XCR-L Caliber change kit, Heavy barrel, 7.62x39
"We've been searching our warehouse for years for these. Our Warehouse Foreman is kinda short, and he couldn't see them on the top shelf. Well, we don't need them anymore, so please take them off our hands. May be the only remaining units on the planet"
The XCR is a multi-caliber weapon system. The base platform is chambered in 5.56x45 NATO. Conversions to other calibers and barrel lengths can be performed in 2 to 3 minutes without the need of a trained armorer, and using only a standard hex wrench, and consist of changing to the appropriately chambered barrel and bolt, replacing brass deflector (optional) and insertion of appropriate magazine. 6.8 Remngton SPC and 7.62X39 are the current conversion kits available.
7.62X39 Heavy Upper Kit