Yes. It comes free with every rifle. It's called "the receiver".
I really strain to understand all this nonsense about bolt carriers. Either the rifle should be in use or securely locked and secured.
Not left in a unsecured in a car
with the bolt on the owner's person!
And this rubbish about wandering through woodlands or on the hill with the bolt in a "bolt holster" is the invention of yet another breed of idiot!