Crush Washer for Sig MPX Lantac®

The Lantac crush washer for Sig MPX rifles is a small but essential component for installing muzzle devices. Designed for 13.5 mm threaded barrels, it ensures proper alignment and a secure fit of flash hiders, compensators, or suppressor adapters. Reliable, precise, and built for consistency.

Purpose That Matters

The crush washer guarantees correct seating and tight fixation of a muzzle device. Even during prolonged or intensive shooting, it keeps the device firmly in place and correctly oriented.

Single-Use by Design

Each washer is intended for one-time use only. This ensures maximum effectiveness and correct torque when tightening. Reusing a washer reduces performance, so a fresh piece should always be used when reinstalling a muzzle device.

Made for Sig MPX

The 13.5 mm size corresponds to the standard threading of Sig MPX barrels, making the washer universally compatible with all common variants of the platform.

Simple Installation

Installation is straightforward: slide the washer onto the thread, mount the muzzle device, and tighten to proper orientation. The crush washer deforms slightly under torque, locking the device securely in place.

Key Benefits:

• Ensures secure fit of flash hiders, compensators, or suppressor adapters
• Compatible with all Sig MPX barrels using 13.5 mm threads
• Single-use design guarantees correct alignment
• Simple, fast installation process
• Precise seating for stable muzzle device performance
• Made in the USA