![Image](http://www.airsoftgunguide.net/mp5.jpg)
![Image](http://world.guns.ru/smg/hk_mp5n.jpg)
Are these?
![Image](http://www.frattoys.com/images/airsoftm16autorif%20small.jpg)
![Image](http://www.af.mil/news/airman/0106/00_abdefense/M16b.jpg)
These?
![Image](http://www.wwiiguns.com/store/images/stenmkv.jpg)
![Image](http://www.bayonetstrength.150m.com/Weapons/submachineguns/Sten_Mk5.jpg)
In each case one of those fires paint pellets, and one fires bullets. True in this case the paint gun was deliberately designed to look like a "real" gun for cosmetic reasons, but the point remains that just because two weapons look alike externally, doesn't mean they must BE alike.
Why would Starfleet replace lasers with phasers that look identical? We know very little of how phasers work. For all we know, the only thing required to turn a laser into a phaser is to pull the lasing medium out and stick a fancy new type of phaser crystal in. Starfleet could have done something like that as a quick and dirty upgrade, an interim weapon rushed into service while they designed the Type 1 / Type 2 combination. I actually quite like that explanation myself.
Seems to me that we either believe that the Cage crew were lying/stupid/mistaken/using a colloquialism in calling their weapons lasers, or we assume that two different weapons are externally identical. Whilst both are possible, the first requires a reinterpretation of the facts. The second does not. So the first one is the better theory.
The Cage weapons were lasers. The WALGMO weapons were not. It's the best explanation of the facts.