In the market for an used XCR can you guys educate me a bit?
I am little confused about the differences between early model and late model triggers, barrel locking hex screw, thin vs heavy barrel and keymod etc.
What's the pro / con between them and what to look for / avoid if possible?
Any info will be very helpful and much appreciated!
I am little confused about the differences between early model and late model triggers, barrel locking hex screw, thin vs heavy barrel and keymod etc.
What's the pro / con between them and what to look for / avoid if possible?
Any info will be very helpful and much appreciated!


















































