HMS is a prop shop, H is Steve Horch, I think he posts here occasionally.
HMS built props for the actual Star Trek shows over the years (not the classic 60s show but the "modern era" series-es)... so if you get an HMS prop as either a kit, or a built one from Rodd.com or Star Trek Experience or whatever, you're getting something made by "real" prop guys. :thumbsup
AA toy phaser in "In a Mirror Darkly"
The Art Asylum phaser (distributed by Diamond Select) is a toy made in China but based off of a "master" built by HMS. The toy is made from ABS plastic I think (or styrene, I'm not sure on the difference). It has no metal parts, it's just molded in gray plastic and painted in the various colors.
It's a pretty sophisticated replica, despite being just a toy... the black p1 "hand phaser" is removable, and has several sound effects selectable with a control in the "power meter" dial.
Art Asylum/DST phaser with sight raised
The thumbwheel raises a "sight plate", which was actually a feature of the original prop, but unfortunately the toy's sight is rather dinky and not at all as impressive as the original.
The trigger for the hand phaser is a rubber button on the bottom of the unit. A red LED in the front emitter lights up.
Snap the hand phaser into the pistol grip, and you get the complete phaser, with an LED that lights up in the main emitter. The "ten turn" dial in the back and the dial on the side of the pistol, both work. All this for about $30!
The working HMS prop replica version is of course more impressive, since it's fully painted (the prop has bare plastic on its body) and has metal parts where they should be.
The HMS is probably made from plastic resin... the Master Replicas is made from a diecast metal, so it's very heavy on the hand. The MR also has a removable grip, which you twist to release. This is accurate to the hero props.
Actual prop (top) and Master Replicas P1 hand phaser, both with sight raised
The RGB LEDs in the MR are pretty sophisticated, changing color with the various settings (which have the appropriate sound effects, and are "burst" or "continuous" as required). There's also a sort of color-flashing effect when firing, which gives the impression of surging energies. Very satisfying!
Master Replicas phaser
Master Replicas phaser
Here's the Master Replicas (left) compared to an HMS built phaser (from Starland, not Roddenberry)... and also an Art Aslyum toy that was repainted in more accurate colors.