G&G UMG Quick Detach Barrel Extension for UMG Series Airsoft AEG Rifle

"This completely works for my H&k GBB UMP 45.
Some say the barrel is threaded. Some say its not. Some say it is but isnt 14mm. I felt like the ones saying its not didnt wanna try to take off the tip (I dont blame them, I didnt wanna risk it either.) Anyway. Its great for the UMP because it works without the included flash hider (Just very very tightly) and the included flash hider could be put on another threaded gun if you wanted, and the suppressor can be shared. Just sharpie your UMP barrel lol. It works great.

"It's a little bit expensive, but I love this silencer. Came in a nice little cardboard box with the silencer itself and a spare metal flash hider.

I didn't get this for the G&G UMG, but got this for the Umarex UMP GBB to see if it will fit. It is not a 100% fit (more like 90%), but it is to the point that it will not wiggle around!

I'm currently using an old stock inner barrel that came with my AK (407mm) and it works perfectly fine.
You can also slap the flash hider to anything 14mm negative.

10/10

"This fits perfectly on the G&G UMG and looks great. I tried the Angel Custom silencer and it would not fit over the outer barrel of the UMG like it's supposed to. Only buy this one if you're trying to use it on your G&G UMG

"200mm. Negative thread on the spare flash hider. Awesome silencer. Easy to get on and off, and looks great on the UMG.

"How long in milimeters is this silencer. please answer.