SKU: 93188188130

Scorpion Piston - SRS + Spring Guide

$74.34 $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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4.3 ★★★★★
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Verified Purchase
James F Evans
Los Angeles, US
★★★★★ 5
Surprisingly amazing chair!
Color: Pink, Color: Pink
tl;dr: If you need a chair that has the features of this one, then this one is a winner! Hits above its weight class for sure. My wife is 5’. She’s small. For whatever reason she ended up with a chair made for big people, like 6+ feet and up to 500lbs type of a chair. She’d often even sleep on it and chill on it. The chair was big enough to fit 2 of her to be honest. It was an expensive chair that I won at some raffle and didn’t like myself. Over the years it ripped (got a cover for it) and even started to get lopsided (from the sleeping) and finally a spring broke (hence the pillow on it in the pictures) She obviously lives pink. I also wanted to get a chair where she could work and not end ip asleep on. Not like we have a couch or a bed for that 😂. This chair is very obviously smaller than her previous chair, it’s also significantly cheaper in price and build, it’s also not as durable feeling or stable, and it’s just not as padded. Yet somehow it’s an amazing chair that we both like better than her previous chair??? Like it’s crazy that this chair somehow works better in so many ways. Her desk is modified to be shorter than normal desks (again, she small lol) and her previous chair was just too big. The wheels are also like SUPER smooth, like you can run a chair race easily with it. It rolls over her rug and tucks into her desk (which is in our bedroom) easily. The amount of space this has save us when the chair isn’t being used is a lot. Previous chair was much bigger and didn’t tuck in at all. The color is nice and the padding is plenty for a small and much lighter than 500lbs woman. I’m 6 feet and 200 lbs and the chair is nice for me as well. My chair is bigger and more secure in the backing, which is similar to this one. The lowest tension setting on my chair is still too high for her to lean back on my chair. This chair has a lower tension minimum and she can easily lean back freely, as well as keep enough tension to work without sagging. This chair is surprisingly outstanding! I’m sure my wife will destroy it quicker than the last one, but it’s so cheap that even if it only lasts 1-3 years, I’ll happily buy it ones or twice more 🤷🏽‍♀️. Maybe by then they’ll invent a comfortable titanium chair that’s affordable that she won’t destroy 😂.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2024
R
Verified Purchase
Rebecca Olmos
Omaha, US
★★★★★ 3
Mid.
Color: Light Purple
The chair is fine, and reasonably easy to put together. However, I've been using it for a little over a year and a half, and it's already falling apart. Random parts of it have fallen off, which is fine because it was still functional. But now the most frustrating part is that the wheels continue to pop off, and while the first attempts to pop them back on worked, they will not stay on now. This is obviously greatly impacting the stability, and I will need to purchase a replacement soon. For this price and lack of long-term durability, I would not buy again.
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Reviewed in the United States on January 4, 2026
B
Verified Purchase
Bridgett Kelly Rode
Massapequa, US
★★★★★ 5
Alexa messed me up, but the company of the chair made it right!
Color: Light Purple, Color: Light Purple
I wanted something small with arms that moved out of the way when I wanted to slide my chair all the way into my desk for more space. This fit the bill. I loved the color blue and I had that in my cart for a bit. One day Alexa mentioned that an item that was in my cart was on sale. It was the chair. I let it be ordered. When it came it didn't exactly look blue to me. But I kept putting it together thinking maybe it was the lighting in the room I was assembling it in. I brought it to my craft room and lo and behold it is light purple. I looked at my order and sure enough it said light purple. Boo! I looked in my saved cart and the chair was gone. So I accepted it for an error. The next day I checked to see if I could return it. Thought I could, till I read that I would have to pay to return it. So I wrote the seller to tell them to ignore the return. And that was that. Till a couple days later I get an email from the seller asking if I would like a full refund or a replacement at no cost. I was like heck yeah send me the blue one. I was thrilled and I wanted to thank the seller for doing this without the return of the other chair. But I could not find a place to do that now. So here is where I will thank you. Thank you so much for doing this for me. You guys are AWESOME!. I love the chair and I love the blue color. I find it very comfortable, lite, easy to adjust, the size works great for me, and for the price the quality fits my needs. I do hope it lasts me for quite some time. Thanks again!
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Reviewed in the United States on January 9, 2026
S
Verified Purchase
Steve in Florida
Lexington, US
★★★★★ 5
Awesome chair definitely recommend
Color: Blue, Color: Blue
It was amazing the color was spot on and it was very very easy to put together and the size is amazing for my 11 year old daughter maybe not for an older person it doesn’t recline as much as it says so if you want a reclining chair maybe I don’t recommend this chair but the quality is amazing and the adjustment capability is incredible the noise level is at 0 it is an amazing chair we just got it so I don’t know so much about the dupability so if you want this chair for a child or a tween maybe even a teen easy to put together beautiful blue color this is the chair for you.
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Reviewed in the United States on March 21, 2026
R
Verified Purchase
Rocky hardcore
Port Orchard, US
★★★★★ 5
Easy instructions, comfortable cushions
Color: Pink
I just put it together and I love it!!! It's so comfortable and it was easy to put together. You can rock it back and forth which helps your back. The seat is very wide and the cushion is thick. Pink is my favorite color, and this chair satisfies my pink obsession.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

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