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Home
Hunting and Weapon Accessories
Weapon Accessories

TONI SYSTEM – 12 gauge barrel tube assembly

Keeps the magazine tube stable during firing

tank barrel collar Toni System ASTC1-BK
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21 August 2026
in Weapon Accessories, Hunting and Weapon Accessories

Il Toni System ASTC1-BK It is a barrel and magazine tube support collar designed to increase the rigidity and stability of 12-gauge semi-automatic shotguns equipped with magazine extensions. Made by the Italian company Toni System, this accessory was created to meet the needs of sport shooters and hunters who wish to improve the solidity of the barrel-magazine assembly, reducing the stress generated during shooting.

Compact, lightweight and precision-machined, the ASTC1-BK represents a simple yet extremely effective solution for optimizing the reliability of your weapon during intensive use.

ASTC1-BK Collar Function

When a shotgun is equipped with a magazine tube extension, especially in sporting or dynamic configurations, the additional weight can generate greater stress on the mechanical assembly during the firing cycle.

Il Toni System ASTC1-BK It serves to connect and stabilize the barrel and magazine tube, creating additional support that helps improve the overall rigidity of the structure.

This solution allows you to reduce any unwanted movements and increase the stability of the weapon during use.

Construction and materials

Like other accessories developed by Toni System, the ASTC1-BK is also manufactured using high-precision CNC machining.

The careful construction and quality of the workmanship allow us to obtain a robust yet lightweight component, capable of withstanding the stresses typical of sporting and hunting use.

  • Precision CNC machining
  • High structural strength
  • Low weight
  • Black anodized finish
  • Excellent wear resistance

Compatibility

The ASTC1-BK model was developed for 12 gauge shotguns equipped with magazine tubes having a diameter of approximately 27 mm.

The system can be used with extensions Toni System and with other tank tubes having compatible dimensional characteristics.

The versatility of the project allows for installation on numerous semi-automatic platforms intended for both sporting and hunting use.

Benefits of using

Although it is a relatively simple accessory, the ASTC1-BK collar offers several practical advantages.

  • Improved stability of the tank tube
  • Reduction of vibrations during shooting
  • Greater rigidity of the barrel-tank assembly
  • Additional protection against accidental impacts
  • High reliability even during intensive use

These features are particularly appreciated in dynamic disciplines and in configurations equipped with high-capacity extensions.

Compact and functional design

The design philosophy of Toni System always prioritizes functionality without neglecting aesthetics.

The ASTC1-BK features clean, modern lines that blend perfectly with the aesthetics of modern semi-automatic rifles.

The anodized black color also guarantees excellent aesthetic uniformity with most weapons on the market.

Simple and immediate installation

One of the strong points of the ASTC1-BK is the ease of assembly.

The system was designed to allow for quick installation without the need for permanent modifications to the weapon, allowing the user to immediately improve the stability of their rifle.

The compact structure does not interfere with the use of the weapon and maintains the operational practicality of the system unchanged.

Main features of the Toni System ASTC1-BK

  • Type: barrel-tank support collar
  • Caliber: 12
  • Compatibility: 27mm tank tubes
  • Material: CNC machined alloy
  • Finish: black anodizing
  • Weight: about 49,5 grams
  • Installation: without permanent changes
  • Function: barrel stabilization and magazine extension

The philosophy Toni System

Toni System develops accessories and components designed to improve the performance of sporting and hunting weapons through innovative technical solutions and high-quality workmanship. Attention to detail, mechanical precision, and the constant search for new solutions are the cornerstones of the Italian company's production.

The ASTC1-BK fits perfectly into this philosophy, offering a simple yet extremely effective component to increase the stability of the rifle.

Final houghts

Il Toni System ASTC1-BK It's an accessory designed for those who want to improve the rigidity and stability of their 12-gauge semi-automatic shotgun equipped with a magazine extension. Thanks to its sturdy construction, low weight, and ease of installation, it represents a practical and reliable solution for both sport shooting and hunting applications that require maximum gun reliability.

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