PDI 13mm SPR 300% spring review

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PDI 13mm SPR 300% spring review


The parts were supplied from x-fire.org which is the official distributors of PDI products from Japan. There customer service is superb and with juggling shows and meetings the sales manager managed to help me out very quickly and helpfully.


The item was superbly wrapped and no damage was present to the inner package. The items were all wrapped in a layer of bubble wrap and then any loose space was filled with little sausages of bubble wrap. They were then placed in a cardboard tray, covered in another layer of bubble wrap and then covered in a final layer of brown heavy wrapping paper


Item was shipped via EMS and was superb, within 2 days the item was within the UK and then the following day it was delivered to my door. The tracking service was kept fully up to date with its progress.

1st Impressions:

Nice spring, well made, no flaws in it.


This was slightly harder to install being it longer than the cylinder by 2 inches.

FPS test:

The results this spring gave are follows:

  • Shot 1 – 646
  • Shot 2 – 650
  • Shot 3 – 649
  • Shot 4 – 646
  • Shot 5 – 647

The results were produced with 0.20g ammo and the rifle had a 6.01mm barrel fitted. The rifle was tested on a Guarder chrono with Blaster 0.20g bb’s


Good spring, not overly powerful as I thought it would be. This gave nice consistencies and great range, Problem is it is really stiff to cock when prone.



Consistency of fps: 9/10

Value for money: 9/10

Construction: 10/10