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SIG-SD Suppressors

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SIG-SD Suppressor Overview

Sig Sauer has incorporated some outstanding suppressor engineers in their suppressor division leading to an outstanding quality product.

One of the biggest names in the suppressor industry is Kevin Brittingham, Sig's Silencer Division President. Kevin brings a vast knowledge of suppressor design and manufacturing to the team. He was also one of the pioneers in the .300 AAC Blackout cartridge.

Sig's rifle suppressors use a tubeless design to help with sound and weight reduction. The pistol suppressors utilize a titanium tube, 17-4 stainless steel baffles, and can be serviced and cleaned by the end user.

The quick detach muzzle devices for the rifle suppressors are modular allowing the end user to change the head of the device for different needs.

Thread Pitch

  • Rifle Suppressors
    • SRD556 5.56mm suppressors - 1/2x28
    • SRD762 7.62 / 300WIN suppressors - 5/8x24
    • SRD338ti .338 suppressor - 5/8x24
  • Pistol Suppressors
    • SRD9 9mm suppressor - ships with 1/2x28 and M13.5x1LH pistons (both included with suppressor)
    • SRD45 .45 ACP suppressor - ships with .578x28 and M16x1LH pistons (both included with suppressor)
    • SRD22 .22 LR / .22 Win / .17 HMR suppressor - ships with 1/2x28 and M9 adapters (both included with suppressor)

Additional adapters

Sig is offering additional pistol suppressor pistons as well as additional rifle mounts for owners wanting to use a QD suppressor on multiple rifles / rifle caliber pistols. Those are below.

  • Pistol Suppressor Pistons
    • SRD-PISTON-12x28 - 9mm 1/2x28 piston. For SRD9 or SRD45 (allows the SRD45 to be used on a 9mm pistol).
    • SRD-PISTON-M135x1LH - 9mm M13.5x1LH piston. For SRD9 or SRD45 (allows the SRD45 to be used on a 9mm pistol).
    • SRD-PISTON-916x24 - .40 S&W 9/16x24 piston for SRD45 (allows the SRD45 to be used on a .40 S&W pistol).
    • SRD-PISTON-M145x1LH - .40 S&W M14.5x1LH piston for SRD45 (allows the SRD45 to be used on a .40 S&W pistol).
    • SRD-PISTON-578x28 - .45 ACP .578x28 piston for SRD45.
    • SRD-PISTON-M16x1LH - .45 ACP M16x1LH piston for SRD45.
    • SRD-PISTON-M16x1RH - .45 ACP M16x1RH piston for SRD45.
    • Rifle Suppressor Mounts
      • SRD-556-12x28-F - Flash hider assembly, 5.56mm Taper-Lok, 1/2x28 for SRD556-QD suppressor.
      • SRD-556-12x28-B - Muzzle brake assembly, 5.56mm Taper-Lok, 1/2x28 for SRD556-QD suppressor.
      • SRD-762-58x24-F - Flash hider assembly, 7.62 Taper-Lok, 5/8x24 for SRD762-QD suppressor.
      • SRD-762-58x24-B - Muzzle brake assembly, 7.62 Taper-Lok, 5/8x24 for SRD762-QD suppressor.
      • SRD-762-12x28-F - Flash hider assembly, 7.62 Taper-Lok, 1/2x28 for SRD762-QD suppressor.
      • SRD-762-12x28-B - Muzzle brake assembly, 7.62 Taper-Lok 1/2x28 for SRD762-QD suppressor.
      • SRD338-58x24-B - Muzzle brake assembly, .338, Taper-Lok, 5/8x24 for SRD338-QD suppressor.
      • SRD338-M18x1-B - Muzzle brake assembly, .338, Taper-Lok, M18x1 for SRD338-QD suppressor.
      • SRD338-M18x15-B - Muzzle brake assembly, .338, Taper-Lok, M18x1.5 for SRD338-QD suppressor.

    Taper-Lok Fast Attach Mounting System

    Taper-Lok graphic overview

    SIG-SD rifle suppressors use a 3-piece mounting system. The use of tapers compensates for any tolerance stacking, resulting in the most secure, reliable and accurate mounts available.

    • Tapers on key surfaces provide self-centering for accuracy and prevent any loosening during shooting
    • No "timing" shims needed for any mount, eliminating a source of misalignment and installation error
    • Modular design allows for simple and economical changes to your muzzle configuration
    • No ratchet teeth to wear out or damage
    • Provides the least zero-shift even through multiple install/removable cycles
    • Taper-Lok muzzle devices are backwards-compatible with standard barrel threads

    Taper-Lok graphic detail
    Taper-Lok graphic detail
    Taper-Lok graphic detail

SIG-SD Suppressors

Minimal Price: $ 299.99 299.99