Spring SP 90 [Guarder]

I have installed this SP90 spring in several of my airsoft guns, especially the ones I use for CQB. Installation is very easy, particularly if the gun has a quick change spring system. It consistently hits right around 1J, which makes it perfect for indoor games. So far, I have mainly installed them in Double Eagle replicas.

Perfectly working, a good quality piece for overjoule gearboxes, this has a nice finish/coating.
I used it on a 1.35j gearbox and made it 0.83j, next time I'll try a 95 or a 100 of the same series.

I have used other brands springs before and there was a lot of variance that made it pretty much impossible to predict what any 1 spring was gonna do power wise, which was extremely annoying as it meant taking a replica apart lots of times to chrono different ones.
These and consistent, the packaging is clear about the power level, and the price is good.

Perfect as expected fast delivery highly recommended So good packaging and very nice customer service Amazing condition as expected and very happy to buy from taiwangun …………………………………………………………………………

Significant Power Increase
One of the most impressive aspects of the SP 90 spring is its power boost. With an impressive spring rate, it provides a noticeable increase in velocity, enhancing the overall performance of my airsoft gun. The increased FPS has made my shots more effective, giving me the edge in competitive play. If you’re looking to improve range and accuracy, this spring is a game-changer.

High-Quality Construction
Guarder is known for producing top-notch airsoft accessories, and the SP 90 spring is no exception. It’s made from high-quality steel that’s both durable and resilient. After several games, there has been no sign of deformation or wear, which speaks volumes about its durability. This spring is designed to withstand the stresses of rapid firing, ensuring it will last through countless battles.

Easy Installation
Installing the SP 90 spring was a straightforward process. It fit perfectly in my AEG, and I appreciated the clear instructions provided. Even if you’re new to upgrading your airsoft gun, you’ll find the installation to be user-friendly. Just a few simple steps, and you’re ready to hit the field with enhanced firepower.

Consistent Performance
I’ve used this spring in various scenarios, and it has consistently delivered excellent performance. The SP 90 provides a reliable shot with minimal deviation, which is crucial during fast-paced games. Whether I’m engaging in long-range shots or close-quarter battles, I can trust that this spring will perform when I need it most.

Excellent Value and Service from taiwangun.com
The Spring SP 90 is reasonably priced for the quality and performance it offers, making it a worthwhile investment for any airsoft player. Additionally, I want to commend taiwangun.com for their exceptional service. My order was processed quickly, and the shipping was prompt. The product arrived in perfect condition, demonstrating their commitment to customer satisfaction.

Put this in my Arcturus AT-AK12K-PE and it now shoot at exactly 350 fps ,1.14J with 0.2g bbs (EU field legal)

Feels sturdy and shoots consistently. Never had any issues with it.

(Remember to have the compressed coils in the rear.)

Not much to say about this. Bought it so I would have a backup option in case I made my gun too powerful after messing with the gearbox following some upgrades.

From my inspection, it feels sturdy enough and can't see anyone having issues with this brand.

A good spring, good quality and works well. I got it paired with my UTR45 since it had a quick change spring mechanism. Handy thing to have if you want to play range in the morning and then maybe cqb in the afternoon.

Overall a good product, would recommend it to just have as a spare in your toolbox or something incase you get the feeling that you want to go cqb.