Email a copy of "K-Fed's call to cops: 'Britney's got a gun'" to a friend.
A panic call from Britney Spears' husband sparked her stand-off with cops - because he feared she would SHOOT DEAD their two sons.
As Brit left hospital, a pal said: "K-Fed was terrified. He realised she had a gun where she was holding them."
We can reveal that Kevin Federline feared his ex would use the Beretta pistol he bought her as a...
