SKU: 93188188130

Scorpion Piston - SRS + Spring Guide

Sale price$74.34 Regular price$82.60
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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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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Dan Che
Boise, US
★★★★★ 5
Perfect Blend of Comfort and Style
Size: 9, Color: Brown, Size: 9, Color: Brown
I recently purchased size 9 of these shoes, and they exceeded my expectations in every way! Here’s what I love about them: 1. Comfort: The moment I put them on, I noticed how soft and supportive they felt. The cushioning provides all-day comfort, making them perfect for long walks, workdays, or running errands. 2. Fit: The sizing is spot-on! I ordered my usual size, and they fit perfectly with no need to size up or down. There’s enough room for my toes to move without feeling too loose or tight. 3. Style: These shoes look even better in person. The design is sleek and versatile, making them easy to pair with both casual and semi-formal outfits. I’ve received several compliments already! 4. Durability: I put it on the day of purchase. After wearing them daily for a couple of days, they still look brand new. The stitching and material seem high-quality and built to last. 5. Value for Money: For the price, these shoes deliver exceptional value. You’re getting premium comfort and style without breaking the bank. Final Thoughts: If you’re looking for shoes that offer comfort, style, and durability, I highly recommend giving these a try. I’ll definitely be considering another pair in a different color soon! To conclude, I’m very happy for this purchase. Will definitely buy again.
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Reviewed in the United States on January 13, 2025
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Roderick
Whiting, US
★★★★★ 5
Great Purchase
Size: 12, Color: Black
These shoes are great. They look great and extremely comfortable.
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Reviewed in the United States on May 10, 2026
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Isaiah O
Belleville, US
★★★★★ 5
Comfortable, Easy to Clean, and Held Up at Coachella
Size: 12, Color: White, Size: 12, Color: White
I’m really happy with this purchase. The shoes are very comfortable, and the product description is accurate. I followed the sizing recommendation based on my foot type and went one size up—they fit perfectly. I bought these for Coachella, and they definitely held up. I was on my feet all day, and they stayed comfortable the entire time. What impressed me most is how easy they were to keep clean. At the end of each day, I was able to wipe them down and maintain their whiteness without much effort. Once I got home, I gave them a deeper clean, and they honestly looked as good as new. Even the laces cleaned up easily. Now I’ve transitioned them into my regular work shoes, and they still look great. Overall, I’m very satisfied with this purchase and would definitely recommend them.
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Reviewed in the United States on May 4, 2026
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Hawaiian
Carnegie, US
★★★★★ 4
Great shoes that are well made, lite weight, and comfortable.
Size: 12, Color: Brown
Just received my 2nd pair of shoes from Bruno Marc in a size 12. These are really lite and comfortable. It can be dressed down to be a casual shoe or dressed up with a nice suit. These run true to size so I ordered my usual size 12 and the fit was perfect. Being my 2nd pair of Bruno Marc's, I like the quality of their shoes and each shoe is described appropriately on fit and comfort. Insole of these shoes were awesome and provided soft comfort on the feet along with a slight arch support too. Will definitely consider ordering more Bruno Marc shoes in the future.
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Reviewed in the United States on March 11, 2025
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JCMIV63
Lowell, US
★★★★★ 5
Cushioned, comfortable, stylish and a rubber sole!
Size: 10, Color: Brown
These shoes check multiple boxes for me, comfortable, cushioned, rubber sole and stylish. As my feet grow old and worn out, I'm on a constant search for comfortable, cushioned shoes that are suitable for work and dressier occasions. I have tried many expensive shoes that look great but either lack cushioning, arch support and or comfort. One of the nice things is these shoes have a rubber sole, where most cushioned shoes have the foam soles which are great, but they tend to lack grip particularly when its damp/wet. They have average arch support, but the insole is removable and I put my own cushioned arch support. Love these!
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Reviewed in the United States on April 6, 2026

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