STEEL Immortal XXL Suppressor,.338 Caliber, 5/8"-24 UNEF Thread

The professional STEEL Immortal XXL sound moderator is a passion for engineering reliability in a compact 215×47 mm body. The Immortal series (from English "immortal") is designed for extreme intensive use: continuous firing, long sessions in automatic fire mode, and heating up to 600 °C do not reduce the effectiveness and service life of this suppressor. The Immortal XXL model combines high acoustic efficiency and structural durability, essential for professional shooters and demanding operating conditions.

The body is made of Italian stainless gun-grade steel, which has increased corrosion resistance and long-term operation. The internal architecture with the patented TM STEEL "floating separator block" compensates for linear thermal expansion and allows the design to maintain performance at high temperatures. An effective powder gas deflector is installed inside, which directs the flow into two moderator circuits, reducing noise, limiting barrel bore contamination, and acting as a muzzle brake-compensator (MBC).

Immortal XXL Model Features

• Dimensions: 215×47 mm, overall length 215 mm.
• Caliber:.338 Lapua Magnum (.338), 8.6 mm caliber group.
• Muzzle thread: 5/8"-24 UNEF, compatible with corresponding threaded adapters.
• Material: Italian stainless gun-grade steel, external coating — Cerakote firearm paint, color black.
• Weight: 720 g.
• Acoustic efficiency: sound reduction up to 80% (34 dB according to sound level meter data).
• Chambers: 13+1 (equivalent to 35 chambers in competitors), non-disassemblable design.
• Withstands automatic firing mode and intensive use without loss of properties.

Additional structural elements that enhance efficiency: pre-expansion chamber, floating separator block, powder gas deflector, and active muzzle brake-compensator function. This configuration simultaneously provides a high degree of sound suppression, gas flow control, and reduced fouling of combustion products in the barrel.

Technical Specifications

• Brand: STEEL.
• Model: Immortal XXL.
• Type: Suppressors / Sub-type: Sound Moderator.
• Material: Stainless steel (Italian gun-grade steel).
• Coating: Cerakote firearm paint.
• Color: Black.
• Acoustic efficiency: 34 dB (approximately 80% noise reduction).
• Overall dimensions: 215x47 mm; Total length: 215 mm.
• Weight: 720 g.
• Muzzle thread: 5/8"-24 UNEF.
• Caliber:.338 Lapua Magnum (.338), 8.6 mm (.338) caliber group.
• Country of manufacture: Ukraine.

The STEEL Immortal XXL is suitable for use in both practical shooting and professional tasks where reliability is required as part of the firing system. Its design solutions guarantee a long service life, minimal maintenance, and stable operation in challenging conditions. If you are looking for a sound moderator that combines a high level of noise reduction, operational durability, and compatibility with the.338 caliber, the Immortal XXL is one of the best choices on the market.

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