Originally Posted by HeadlessChicken
What did deter me was that on AirsoftParts, it says with CA guns that it needed a "slight modification" but I couldn't uncover any details
That was my issue as well, and it says that on many websites, including SOCOM Gear's own website. I'm guessing they made the thing based off a JG/Echo1 gun.. but it just so happens to be so similar to a CA that there isn't actually an issue. I for one am quite glad it needs no mods.