Sig Sauer SL55612X2825DEGF Clutch-Lok QD Flash Hider, Black Stainless Steel, 1/2"-28 TPI Threads, 2.10" OAL for 5.56mm Sig Taper-Lok Barrels

The Sig Sauer Clutch-Lok QD Flash Hider is a quick-detach muzzle device engineered specifically for shooters running Sig's SLH and SLX suppressor line on 5.56mm Taper-Lok barrels. This black stainless steel mount serves dual duty: it's the attachment point for your suppressor's fast mounting system and a functional flash hider when you're running the rifle unsuppressed. Built for the 25-degree taper interface found on Sig Taper-Lok barrels, it threads on at 1/2"-28 TPI with a compact 2.10" overall length that won't bloat your rifle's profile.

The Clutch-Lok design is built around speed and reliability. Rather than fumbling with shims or crush-fit sleeves, you get repeatable mounting and dismounting of your suppressor without tools—valuable whether you're toggling between suppressed and unsuppressed fire at the range or managing your kit in the field. The flash-hiding properties when running naked make it a genuinely useful brake alternative, not just a mounting interface pretending to do more than it does.

This is a purpose-built accessory for Sig's suppressor ecosystem. It's not a universal quick-detach mount, and it's not designed for use on non-Taper-Lok barrels. If your rifle sports a standard AR barrel extension, you'll want the 90-degree version instead. As with all NFA items, verify your local and state regulations before purchase—suppressor legality, registration requirements, and Form 4 paperwork are your responsibility to navigate.

Specifications

Frequently Asked Questions

Will this work on my AR-15 barrel?

Only if your AR has a Sig Taper-Lok barrel with a 25-degree taper. It is not compatible with standard AR-15 barrel extensions or other manufacturers' taper systems. If you're unsure, verify your barrel's threading and taper angle before ordering.

What suppressors does the Clutch-Lok QD mount work with?

This mount is designed for Sig's SLH and SLX suppressor line. Check your suppressor's documentation to confirm compatibility with Sig's Clutch-Lok system.

Can I use this as a flash hider without a suppressor?

Yes. The Clutch-Lok QD Flash Hider functions as a flash-reducing muzzle device when your suppressor is not attached, so you're not stuck running an incomplete mount on the muzzle.

Is there a version for non-Sig barrels?

A 90-degree version of this item is available for use on non-Sig Taper-Lok barrels. Make sure you order the correct taper angle for your barrel.