Eagle Vision Sigma M51 Silencer – 1/2″ UNF

Sigma M51 Airgun Silencer – by Eagle Vision

The Sigma M51 from Eagle Vision is a high-performance airgun silencer engineered for shooters who demand exceptional noise reduction and top-tier build quality. Designed to handle calibers from .177 up to .35, it delivers powerful sound suppression across a broad range of air rifles.

For .177, .22, and .25 calibers, the Sigma M51 can be fitted with a caliber-specific liner, which enhances internal air management and significantly reduces muzzle report. Shooters using .177, .22, .25, or .30 can alternatively install the included air stripper, replacing the liner to stabilise airflow and optimise accuracy. Together, these modular components allow the M51 to be tuned for your shooting setup.

Built for serious noise-reduction performance, the M51 features a substantial internal volume and precision-machined baffle system to absorb and diffuse high-pressure air, making each shot noticeably quieter and improving the overall shooting experience.

Length: 187 mm
Diameter: 51 mm
Weight: 266 g

This version includes a standard 1/2″ UNF fitting, compatible with most air rifles. Other thread options are available to order  – please contact us.

Crafted with Eagle Vision’s renowned attention to detail, the Sigma M51 is a powerful, adaptable silencer designed to deliver superior sound suppression for a wide range of airgun calibers.

PLEASE NOTE: We can only send this item direct to you if it is being used on an sub 12ftlb airgun only (not on a high power license). By purchasing you are confirming that this is the case.
Sorry we can’t export outside of the UK

£155.95

Only 2 left in stock

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Description

Includes:

  • 1x Sound Moderator
  • 1x .177 Liner (8x spare o-rings) 14g
  • 1x .22 Liner (8x spare o-rings) 13g
  • 1x .25 Liner (8x spare o-rings) 12g
  • Adaptor 1/2 UNF as standard – for others please contact us
  • 1x Tool
  • 1x Storage Case
  • 1x O-ring silicone grease
  • 1x soft protection pouch
  • 1x Waterproof case
  • 1x pack of grub screws, Allen key, o-rings.

Please note:
Before inserting the liner, you must carefully grease both O-rings located on each end.
Carefully push the liner in, gently twisting it left and right, as it continues to the end.
When removing the liner, and to avoid the breaking the O-rings, gently repeat the same alternating twisting procedure.