The Phaser 2A was
introduced in 2271, and was in service as a standard sidearm though
2285, when the Phaser 2B was introduced, and deployed. The Phaser
2A had a removable P1 attached to the front, which is cradled from
the bottom handle, and rear. The P2 was not usually used in the
P1 configuration, by personnel, prefering of the P2's overall characteristics.