Ares UMP 45 Blowback mods

[Potato Monarch]

So I've bought an Ares Ump and I've had it for a few weeks, so far I'm thinking it's a fantastic gun, the feel of the polymer and way it shoots is just great quality, I'm thinking about modifying it just a little, extra side rails and perhaps a barrel extension leading into a compensator or flash hinder, Wondering if anybody has had success in modifying the same gun, or ideas / parts recomendations.

[Liftalldaydave]

is this the ump from herooutdoors?

[juiceboss]

Hive power up surpressor