SKU: 93188188130

Scorpion Piston - SRS + Spring Guide

Sale price$74.34 Regular price$82.60
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Description

Scorpion Piston - SRS + Spring GuideThe new Stalker Scorpion piston for the SRS! Key features: Modular piston with adjustable weight (from ~65 to 148 grams) Silences your SRS Increases joule FPS consistency Adjustable airbrakes for optimal fine tuning SRS short stroke option for faster reloads and shorter bolt pull. Works with Open Piston Sear The piston includes 2 adjustable airbrakes for optimal fine tuning according to your setup. 1 short 3. 80 mm airbrake (optimal for 2J and 3J~ or

The new Stalker Scorpion piston for the SRS!

Key features:

  • Modular piston with adjustable weight (from ~65 to 148 grams)
  • Silences your SRS
  • Increases joule/FPS consistency
  • Adjustable airbrakes for optimal fine-tuning
  • SRS short-stroke option for faster reloads and shorter bolt pull.
  • Works with Open Piston Sear

The piston includes 2 adjustable airbrakes for optimal fine-tuning according to your setup.

  • 1 short 3.80 mm airbrake (optimal for 2J and 3J~ or higher).
  • 1 long 3.80 mm airbrake (optimal for 2J~ or lower).

A High Joule (shiny) piston head is included for higher joule output and a lighter bolt pull.
Use lubricant for perfect results; we recommend motor oil, silicone grease, or similar. As a reference, a Rapax Lightpull Blue 2J+ spring delivers 2.2–2.3~ joules in an SRS with a Stalker SRS cylinder and a 420 mm inner barrel. The original cylinder will produce fewer joules. Results may vary depending on the cylinder used.

Golden installation rules

  • Always apply a drop of oil or silicone grease to the edge of the head to achieve optimal joules.
  • For 2.3J setups, we recommend starting with the short airbrake and fully unscrewing it.
  • For 2.8J+ setups, we recommend starting with the short airbrake and fully screwing it in.
  • Always set your hop-up correctly for your desired BB weight and adjust it to shoot straight.
  • Higher joules = shorter airbrake
  • Lower joules = longer airbrake
  • Choose your airbrake and start low, then increase (unscrew) gradually until the setup becomes quiet.
  • When you begin losing joules, you know you are just past the perfect airbrake position; screw it back in slightly to regain joules and achieve the quietest setup.
  • Works best with the Stalker SRS cylinder

Good setups require adjustable airbrakes because too many parts in your rifle can change the piston acceleration speed. Spring power, bucking hardness, barrel length, piston weight, etc. We also recommend purchasing some spring guide spacers to fine-tune piston weight and spring joules.

Included in this kit:

  • 1x Stalker stainless steel Scorpion spring guide (with engraved Stalker logo)
  • 1x Dampening rubber to place inside the rear of the Stalker spring guide
  • 1x High Joule piston head (shiny)
  • 1x Extreme Silent Cup (matte finish)
  • 1x Aluminum piston head.
  • 1x Stainless steel piston head.
  • 5x Aluminum weights.
  • 4x Stainless steel weights.
  • Sear made of stainless steel (15 grams)
  • 2 Adjustable airbrakes (long and short)
  • 1x Nut to lock the airbrake setting
  • 10 O-rings for between the weights or stock to prevent the weights from loosening during play.
  • 2 spring guide O-rings for SRS A2 buttpad
  • Front and rear POM guide rings

Detailed information:

The Scorpion piston is a unique concept in which 6 weights form the actual body. Since the piston itself is made up of these weights, it is also possible to extend the piston with additional weights (short-stroke), which in turn reduces your cylinder volume and joule output, but makes cocking your SRS much shorter with each added weight—at the cost of joule output, which can be compensated with a stronger spring.

The piston comes with 9 body weights that are interchangeable to perfectly configure your SRS.

  • 5 black anodized aluminum body weights, each piece weighs: 3 grams
  • 4 polished stainless steel body weights, each piece weighs: 11 grams

Additionally, the piston also includes 2 head weight versions.

  • 1x Black anodized aluminum head weighing: 7 grams
  • 1x Polished stainless steel head weighing: 17 grams

List of 6-piece configurations:
(The fifth stainless steel mid-section weight is sold separately if you wish to use the full heavy steel configurations)

  • SRS Scorpion 62g (1 aluminum head, 5 aluminum mid sections)
  • SRS Scorpion 76g (1 aluminum head, 1 steel mid section, 4 aluminum mid sections)
  • SRS Scorpion 80g (1 steel head, 5 aluminum mid sections)
  • SRS Scorpion 89g (1 aluminum head, 2 steel mid sections, 3 aluminum mid sections)
  • SRS Scorpion 93g (1 steel head, 1 steel mid section, 4 aluminum mid sections)
  • SRS Scorpion 102g (1 aluminum head, 3 steel mid sections, 2 aluminum mid sections)
  • SRS Scorpion 107g (1 steel head, 2 steel mid sections, 3 aluminum mid sections)
  • SRS Scorpion 115g (1 aluminum head, 4 steel mid sections, 1 aluminum mid section)
  • SRS Scorpion 119g (1 steel head, 3 steel mid sections, 2 aluminum mid sections)
  • SRS Scorpion 128g (1 aluminum head, 5 steel mid sections)
  • SRS Scorpion 133g (1 steel head, 4 steel mid sections, 1 aluminum mid section)
  • SRS Scorpion 145g (1 steel head, 5 steel mid sections)
    This configuration requires a fifth stainless steel mid section, sold separately.

Both airbrakes are secured with a nut under the piston head against the head to keep them in place after adjustment. The adjustable airbrake is designed to fine-tune piston speed at the end of its travel to reduce cylinder air release time and minimize piston impact noise when it hits the cylinder head. A sorbo pad in the stock can still be used with this piston.

Basically, whether you like a plug-and-play piston or you are an expert who enjoys fine-tuning piston weights and airbrakes for maximum performance, the Stalker Scorpion is your best friend.

If you have any issues or questions about this or other Stalker products, visit our Stalker Owners Facebook group here:

https://www.facebook.com/groups/329589544772075/

You can follow all my live streams, photos, and updates on my Instagram, Facebook, or YouTube channels here:

Facebook:https://www.facebook.com/StalkerAirsoftDesigns/
Instagram: https://www.instagram.com/stalkerairsoftdesigns/
Youtube: https://www.youtube.com/channel/UCWsBiSHlu-lbcnGQWAkeJWQ

For more information about Stalker products, tech and build guides, visit: www.stalkerairsoft.com

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93188188130

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4.6 ★★★★★
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Darcy Smith
Carnegie, US
★★★★★ 5
Outstanding Story!!!!!!!
Format: Kindle
Oh I loved this story. Sera is such an amazing, fun character. She has so much fire inside of herself. She has humor that makes you laugh with her sassy comments. The guys are fantastic. I don’t feel as if we really have gotten to know who and what they are but they are such a mix of fae. The story is extremely well written and developed. It had me pulled in and didn’t let go. There was so much action, drama, and suspense. Then we get to the ending and goodness there is so much going on. This ending was a major cliffhanger and I absolutely can’t wait to see what happens next.
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Reviewed in the United States on March 12, 2024
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Kathleen G. Bohle
Waukegan, US
★★★★★ 5
Exceptional
Format: Kindle
I think this an exciting entertaining story different from other fantasy reverse harmen story. I love the 1st book in this series and hope it continues to weave a story of friendship, love and disappointment as well as sadness. The cliffhanger was gripping and held you in suspense that waiting until the next book was released was almost too much. I’m so glad I waited to read this series until the majority of the books were released. Katie May and Quinn Arthur’s are wonderful writers and I’m looking forward to reading more from both of them.
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Reviewed in the United States on April 23, 2025
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Johanna J
Massapequa, US
★★★★★ 3
I don’t mind a cliffhanger,
Format: Kindle
but I dropped at least one star because of the obnoxious gloating of the author after the cliffhanger. Seriously - I don’t understand making your readers angry because you’re smug and expecting them to keep reading your books. I was very definitely enjoying the series. Now I have a bad taste in my mouth and mixed feelings about continuing the series.
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Reviewed in the United States on April 9, 2025
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Stephen Wiggs
Alexandria, US
★★★★★ 4
The series as a whole so far 5/25
Format: Kindle
I read reviews before going into this book and I don't agree with one of the more harsh ones on the main trigger she had. It is stated clearly in the forward and it wasn't as blase as it was made out to be. It definitely is touched on more and hasn't just been brushed off as the series goes I definitely would recommend reading it. It's a good series just be for-warned I like the series as a whole. The characters are awesome I adore the fmc shes cute and adorable but also a badass. Though there are a bunch of holes for her that I feel like just got left out. The guys are interesting and shout out to yall for not making Gage a dragon. I'm tired of the broody ones who don't wanna talk aboit what they are being Dragons. Ki is my favorite You can definitely tell if is written by 2 different people though because the phrasing just doesn't match up and wouldn't be something people that age says. And it flip flops between them. I feel like there's substance without substance. We are 4 books in and we don't really know much back story on literally anyone more than right under surface deep. There are definitely favorite MMCs which is kind of disappointing since some get shoved to the wayside. Specifically both of the best friends. They're basically useless and it's made obvious as the books go on. As well as all the men are ungodly self deprecating. I enjoy the plot line for the most part like I said I enjoy the series its different and refreshing. I do feel like the series is being dragged out though unfortunately. And the latest cliff hanger was just meh. So hopefully the next book is the last one.
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Reviewed in the United States on May 8, 2025
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Oohlala857
Belleville, US
★★★★★ 5
Wow!
Format: Kindle
This book was awesome! Seraphina and her family have moved to a new town. Her family is a bit... odd. She grew up learning how to protect herself from people who might hurt her. Bloodshed is a daily occurrence with her brothers and parents during their practice sessions, and it’s all fun and games unless you need to hide a body. Sera’s family is very close, and she’s been homeschooled most of her life. But in this new town she is going to start regular school as a senior at the local high school. Unfortunately, things at her school aren’t all they seem to be. Or perhaps more than they seem to be. Sera has her own demons to deal with, and she’s terrified her new friends will learn about her weird family and other issues and drop her like a rock. It turns out they have their own secrets as well. This story ends on a bit of a cliffhanger and I can’t wait to read the next one! This book is well written and well edited. The heroine is spunky and has a great heart and wicked sense of humor.
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Reviewed in the United States on November 12, 2021

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