Yes, most real Queen Anne pistols are screw barrel types and no, the Pedersoli QA is not.
It is an interesting pistol with its cannon muzzle and the single screw at the breech seems to be adequate.
It is far from a "target pistol" though with it's smooth bore and lack of sights.
Kinda a "point and shoot" gun. Of course, if the target trys to attack you after you've fired your shot you can rap it up along side the head with the neat grotesque grip cap and leave a smiling welt on it. :rotf: