alexpark7102
Members
- Mar 2, 2017
- 1
- 0
Right so I'm new to airsoft and i just bought a umarex UMP 45 elite which is shooting at what the website said is 360- 370 fps. I was wondering what spring it has in it at the moment and what spring I would need to bring it down to somewhere between 330-350, so that i can play at my local site 
