Borgadin

As long as you dont drop it because Acrylic shatters easyly.

I'm 90% sure McMaster ships worldwide, so there's your primary source.

I´ve looked through the help section and haven´t found anything on shipping destinations.

Cannibalizing other objecs (Nerf or not) is another option, but here's the kicker- go to a few local hardware stores, look in the aisles with all the screws, washers, and other metal doodads, and see if there are springs there!

I for one have already looked through most hardware store chains in this country (I´m from Germany too)and have yet to find any decent springs which even fit over a NF plunger rod let alone any which might fit a Raider or any other of the recent reverse plunger guns.It is also a very bad idea to experiment with springs on a 100+ dollar blaster(price of Blaster(+>$10 from a seller that ships internationally)+shipping(>$30)+Customs fee+19%taxes) (if you want something isn´t a NF Mav or that doesn´t have Recon internals)so the Specifications(strength+wire thickness) and Dimensions(length+width) of of springs would greatly help trying to find a local supplier which would be cheaper(less shipping cost+no extra customs fees),easier to obtain and faster.
Thank You for Your Time
Borgadin
Edit: Link to a German modding Forum --> Nerf Modding.de <--

If you perform a forum search for the nerf blaster you intend to modify, you will be able to find the springs commonly used in said modification.

I believe he means the dimensions and specs of the springs and not the types of springs(which can indeed be found in the threads)

@Just Some Bob:Thank You for Your help !That was just the type of Data I was looking for,with that page I might even find a Retailer in Germany that sells it.
Thanks again You have been very helpful!
Borgadin

Why don't you just bring one of your darts to a store that sells brass and get the size that fits your darts good.

Because I´m trying to help some fellow German Nerfers to get supplies for an Angel-Breech but for it to work we need the right materials (it doesn´t only have to fit the darts but into each other as well)so I need dimensions to see if I can get it in this Country(I´m not sure whether They sell it here) or what alternative material I can find.
Thank You for Your time
Borgadin