These series are normal Diameter,so fit to normal guide or piston.
It's really reasonable parts but these are really strong power,so non customized parts are broken easily.
Please be carefull.
Variable Pitch
Our springs are all "perfect" variable pitch, giving light compression and fast return. Some springs use a different "variable pitch", but that's just connect the some different pitchs.Those are difficult to compress and do not give the desired power.
Silicon Chrome Steel
We use silicon chrome steel to make the springs. Also, we can finely adjust the pitch using thissteel, so we can offer different power levels.
All Hand Made
Each spring may look different because our springs are individually made by skilled craftsman. Springs that provide the same power may be slightly longer or shorter.Our springs couldn't be made by machines because of our complete ly variable pitch.
Keep the Style
PDI's Springs don't shrink! Generally,spring will shrink from 15mm to 20mm.We can control under 13mm-5mm.
For VSR-10.
(Fps is showed by VSR-10 Pro Sniper.Not mean with G-Spec)
Length : 200mm arround.
Outer Dia. : 11mm
Inner Dia. : 8 mm ( please use the 7mm SP guide )
Over 160 spring are required PDI 7mm SP guide.
Fps
Price
Stock
VSR 110
290
1,260 yen
VSR 140
330
1,260 yen
VSR 160
350
1,260 yen
VSR 240
430
1,428 yen
VSR 260
450
1,428 yen
VSR 310
490
1,596 yen
For APS-2
Length : 250mm arround.
Outer Dia. : 11mm
Inner Dia. : 8 mm ( please use the 7mm SP guide )
