^{(i actually thought this was ammunition from an old disc gun)}

…all my turntables have included 45RPM adapters for the spindle; never needed anything separate for the records…

…i have a 5" adapter ring for 3" compact discs, though: that has seen legitimate use in all my slot-loading players, although drawer-loading players always included detents for smaller discs, and of course portable players snap directly onto the spindle…