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 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...