Guys, I'm trying to remove the booster from my 1919a4 kit. I don't own a special wrench to remove the booster, so what's the best/easiest method to remove the booster without nicking and scratching it all up? There's what appears to be a snap ring with a slit in it. Next to the snap ring is a small slot where one might fit a thin screw driver. I tried getting underneath the snap wring, but to no avail. Tried using a thin screw driver on the end of the booster and twist it, but to no avail.
Is it right or left hand threads? I'm assuming right since they are American made guns.
You help is greatly appreciated.