SKU: 53628367344

Scorpion Piston - TAC-41 (Ultimate Edition)

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Description

Scorpion Piston - TAC-41 (Ultimate Edition)Stalker Scorpion TAC 41 Piston! STALKER: After designing the Stalker Scorpion SRS and Scorpion VSR editions, it was time for the TAC 41 edition. The Stalker Scorpion piston features an extremely modular design, originally conceived from scratch on my drafting table. It offers every option enthusiasts could desire for their piston. This unique concept uses six weights to form the piston body itself; since the piston is composed of these weights, you

Stalker Scorpion TAC-41 Piston!

STALKER:
After designing the Stalker Scorpion SRS and Scorpion VSR editions, it was time for the TAC-41 edition.

The Stalker Scorpion piston features an extremely modular design, originally conceived from scratch on my drafting table. It offers every option enthusiasts could desire for their piston. This unique concept uses six weights to form the piston body itself; since the piston is composed of these weights, you can extend it with additional weights (short stroke / short pull), which in turn reduces cylinder volume and joule output—but benefits from a shorter trigger pull and reduced piston travel.

Complete Parts List:
1x Aluminum piston head
5x Aluminum center weights
1x Steel piston head
4x Steel gold-coated weights
1x Piston cup
1x Brass air brake
1x Air brake nut
1x STALKER-engraved spring guide
1x Front guide ring
1x Rear guide ring
1x End cap
1x O-ring kit

The 6-piece configuration allows for 12 different setups. Extending the piston with an additional weight gives you 12 more configurations to choose from.

Here are the 6-piece configurations:

TAC41 Scorpion 62g (1x aluminum head, 5x aluminum center sections)
TAC41 Scorpion 76g (1x aluminum head, 1x steel center section, 4x aluminum center sections)
TAC41 Scorpion 80g (1x steel head, 5x aluminum center sections)
TAC41 Scorpion 89g (1x aluminum head, 2x steel center sections, 3x aluminum center sections)
TAC41 Scorpion 93g (1x steel head, 1x steel center section, 4x aluminum center sections)
TAC41 Scorpion 102g (1x aluminum head, 3x steel center sections, 2x aluminum center sections)
TAC41 Scorpion 107g (1x steel head, 2x steel center sections, 3x aluminum center sections)
TAC41 Scorpion 115g (1x aluminum head, 4x steel center sections, 1x aluminum center section)
TAC41 Scorpion 119g (1x steel head, 3x steel center sections, 2x aluminum center sections)
TAC41 Scorpion 128g (1x aluminum head, 5x steel center sections)
TAC41 Scorpion 133g (1x steel head, 4x steel center sections, 1x aluminum center section)
TAC41 Scorpion 145g (1x steel head, 5x steel center sections) (Requires 1 additional gold weight, sold separately)

I'll explain the features of this piston below.

The cups are made from high-quality durable rubber and have been tested and tuned for optimal performance with currently available cylinders. Piston cups are available in two versions.

Black Cup

Lubricate the piston cup with motor oil, sewing machine oil, or TechT grease before use.

Zero loading friction.
Thumb-block air seal
Improved joule output.
Faster reload (lighter pull).
Also compatible with SRS Scorpion
The piston comes with multiple interchangeable body weights (depending on product edition) to perfectly tune your SRS.

Available in black anodized aluminum, each piece weighs: 7 grams
Available in gold-coated, polished steel, each piece weighs: 21 grams
Additionally, the piston head is also available in these versions.

Black anodized aluminum, each head weighs: 8 grams
Gold-coated, polished steel, each head weighs: 24 grams
This allows you to configure the piston between ~65 to 148 grams, enabling you to tailor it for any joule output level.

Additionally, the piston includes an adjustable air brake.

1x Adjustable brass air brake. (Optional O-ring)

This is a thick, non-tapered brass air brake. This air brake is the most 'direct' working air brake—once the fuel...

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Exchange/Return Notes
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SKU: 53628367344

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4.7 ★★★★★
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Verified Purchase
Kindle Customer
Battle Creek, US
★★★★★ 5
Looks great
Size: 1 Panel, Color: Black
Easy set up works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
A
Amazon Customer
Bozeman, US
★★★★★ 5
Versatile Room Divider With Easy Assembly and Strong Coverage
Size: 3 Panel 12FT W
I picked up this Siebwin 3-panel folding room divider mainly for privacy and room separation, and overall it works very well. Assembly is very straightforward, and the divider can be set up, taken apart, and stored without much effort. The fabric quality feels good, and the frame construction is stronger and more stable than expected. The support tubes especially feel well built and help keep the divider standing securely. One feature I really liked is the flexibility of the design. The panels can be used together as a complete divider or separated depending on the setup and available space. That makes it much more versatile for different room layouts or temporary privacy needs. The coverage is also very good, and the size matches the manufacturer’s description accurately. The fabric blocks light and background visibility well enough to provide solid privacy without feeling overly heavy. The wider feet also help improve stability compared to thinner folding dividers. Another positive detail is that everything arrived complete with no missing parts or damaged pieces, which made assembly much easier and faster. Compared to cheaper privacy screens, this one feels more durable and easier to customize depending on the situation. In terms of value for the money, it feels like a very practical and worthwhile purchase considering the size, flexibility, and build quality. Overall, a versatile and well-built room divider with easy assembly, strong privacy coverage, stable construction, complete included parts, flexible panel configuration, and excellent everyday functionality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
F
Fred
Pawtucket, US
★★★★★ 5
Stable, flexible in deployment configuration, creates true privacy and looks great.
Size: 3 Panel 12FT W
This is the second room divider panel I have installed, and there are several features about this one that I like much better than my older one. The fact that there are no gaps and that the material is thicker means you get more privacy or more hiding power, if you wish. My older divider has vertical spaces between each of the panels and the panels are half as wide as the Siebwin panels, so there are many vertical spaces. The Siebwin divider really creates privacy. Another feature that I really appreciate is that the legs are wider and stand off from the floor. On my older one the legs are flat and they're rather awkward to adjust because they create more drag on the floor. The feet on the older one also loosen if you turn them counter clockwise, so adjustments of configuration that require the feet to be moved are more complex. The older divider also must be deployed in a zig-zag fashion because he feet are not as wide, but this new one can be deployed and stable in a straight, an "N" shape or an arc. They are both the same length, but because the older one must be use in a zig-zag deployment it doesn't reach to the length of the new one. The Siebwin divider definitely costs more at $103.48, but it sports several features and advantages over the other brand, so it does a better job and is worth the extra cost.
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Reviewed in the United States on May 25, 2026
C
Computer
Charlottesville, US
★★★★★ 4
Easy to assemble, does the job, material is shiny nylon and shows creases, minor defects, sloppy
Size: 3 Panel 12FT W, Size: 3 Panel 12FT W
The Siebwin room divider is a good idea, and for the price, it mostly delivers on the intended functionality. I ordered the 12 foot, 3-panel version mainly to hide an unfinished basement storage area that had become an eyesore. It works well for that purpose and gives the space a cleaner appearance without spending the kind of money that more decorative dividers or custom partitions cost. If you need something temporary, portable, or mainly functional, this is a viable option. There are a few limitations that became obvious during setup and use. The first thing I noticed was that the weld quality on some of the metal poles is fairly sloppy. Once the cover is installed, you do not really see it, but up close, it does not look especially refined or professional. The blackout material also is not a matte canvas style fabric as I expected. It has more of a shiny nylon appearance, and the creases are fairly visible. Being that it’s more of a nylon, I’d be hesitant to try steaming it to remove the creases. However, the creases do not matter if you are using it in a basement, dorm, or shared room, but for photography, video work, or a professional office setting, the appearance could be disappointing. The fabric is thick enough, though. It blocks visibility well enough, but strong light behind it still shows through to some extent, nothing deal-breaking. Also, my fabric appeared to be slightly defective. The hook and loop strip on one of the bottom sections was off-center and couldn't be totally attached because it was lined up with one of the legs. I originally hoped to use this as a video backdrop, but I will probably end up replacing the fabric with a proper green screen or canvas material while continuing to use the frame itself. For now, it does a good job of covering my basement junk. Assembly was actually easier than I expected and took roughly 15 to 20 minutes. The longer vertical poles are tethered together similarly to tent poles, which made setup straightforward and fairly intuitive. The shorter horizontal pieces slide and snap together to the top and bottom of the vertical assembly. After each section is assembled, the divider panels connect together with metal plates and two knurled screws (at the top and bottom), so no tools are really required. A few screws were difficult to start because paint had gotten into the threads, but once they caught, they tightened down normally. The feet install with similar knurled fasteners and help keep the divider reasonably stable. One thing to watch for during setup is the fabric orientation. There is one arrow indicator in the middle of the fabric to indicate up. However, if you need another indicator, the smaller hook and loop strip goes on the bottom while the longer strip goes on top. I realized mine was upside down right before finishing and had to redo it. I wasn't difficult to redo, despite the defect in mine. The overall design is practical and easy to move around. I do like that the panels can fold and bend into different shapes depending on the space. The widened feet help stability, although when trying to stretch the fabric tight, I noticed the poles sometimes wanted to overlap slightly at the joints. Tightening everything helped somewhat, but it still happened occasionally. The divider feels adequate for normal indoor use, though I would not expect premium durability or luxury-level fit and finish at this price point. The entire device can also be easily disabled and stored in a tote if you need it completely out of the way. It comes with assembly instructions, but even if you didn’t have them, it’s easy to build without them (save a mistake or two). In terms of value, I think the Siebwin divider mostly matches its price. Around $100 gets you a large freestanding partition with decent usability and easy assembly, but there are compromises in materials, appearance, and refinement. The defects are also off-putting, but hopefully you won't have them. Higher-end room dividers can easily cost two or three times more, so some of the tradeoffs are expected. I also noticed cheaper alternatives online, but based on the quality here, I suspect those would probably have even more issues. For practical home use, temporary privacy, hiding storage areas, or separating shared spaces, this is a good option as long as expectations stay realistic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
T
Trendy Tales
West Palm Beach, US
★★★★★ 3
Works well but takes up more space than expected
Size: 2 Panel 8FT W, Size: 2 Panel 8FT W
This room divider does the job for creating a little extra privacy and was easy enough to set up. The panels feel decent quality and the wider feet help keep it more stable than some cheaper screens I’ve tried. My only issue is that it takes up a bit more room than I expected, especially with the feet sticking out. It’s still portable and folds away nicely, but definitely measure your space first. Overall it works well for separating a room or blocking off an area temporarily. i wish it came in other colors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026

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