Mechanism Back
$80.90
- Patented dual roller system.
- The box is obtained from a single sheet of metal, and the anchor points are made up of 2 holes for 3 mm diameter pins and one hole for a screw in the top of the box.
- The roller in contact with the shaft is floating, eliminating friction.
- The roller in contact with the trigger completely eliminates friction during the shot.
- The trigger does not harden during the release.
- Smooth shaft release.
- Primarily constructed from AISI 316 stainless steel.
- Manufactured using 3D metal injection molding technology.
- The trigger is made from our specially formulated super-resistant alloy with a hardness of 55HRC.
- The shaft insertion roller is made from 17-4ph and is wear-resistant.
- The line release is rounded; it neither consumes nor damages the line.
- The opening angle of the line release is 65 degrees.
- Tested with a load of 550 kg.
- Weight: 76 grams.
Frequently Bought Together
- This item: Mechanism Back($80.90)
- Aluminium Avatar Barrel($55.50 – $79.00)
- Call Fish Black($29.10)
- Reel Colibri($63.00)
DESCRIPTION
Patented Dual Roller Trigger Mechanism – Precision, Power, and Zero Friction
This patented dual roller system represents the pinnacle of trigger mechanism innovation, delivering ultra-smooth shaft release and unmatched durability — even under extreme load.
The main housing (box) is crafted from a single sheet of stainless steel AISI 316, ensuring structural integrity and corrosion resistance. It features two 3 mm diameter pinholes and one screw hole at the top for secure and versatile installation.
The heart of the system is its two independent rollers:
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The first roller, in direct contact with the shaft, is free-floating, eliminating friction during loading and enhancing precision.
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The second roller, in contact with the trigger, removes all friction during the shot, ensuring zero trigger resistance and a crisp, smooth release.
Key Components & Materials:
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Trigger: Manufactured from our proprietary super-resistant alloy, hardened to 55 HRC for long-term performance.
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Shaft Roller: Made from 17-4PH stainless steel, renowned for its exceptional wear resistance.
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Line Release: Rounded design that avoids damaging the shooting line, with an optimal opening angle of 65°.
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Line-safe and durable, even under repeated use.
Additional Specs:
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Tested up to 550 kg of load
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Weight: 76 grams
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Manufacturing: Produced using high-precision 3D metal injection molding (MIM) technology
This mechanism sets a new standard for speargun performance, offering flawless trigger feel, superior materials, and maximum reliability under pressure.
by ERMES
https://ermes-sub.com/shop/trigger-mechanisms/evo-back-friction/