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Plan your Class 3 dealer
Suppressors go through a Class 3 (SOT) dealer, and the federal tax on them has been $0 since January 1, 2026. You still pay the dealer's transfer fee. Some states only allow suppressors and SBRs that are federally registered or possessed in compliance with federal law. Check your state's statute before you buy.
Federal and state suppressor rulesSig Sauer
Overview
The SIG Sauer Hexium556 Titanium Suppressor is designed specifically for the 5.56 NATO caliber, providing effective sound reduction while maintaining lightweight performance due to its titanium construction. Its black finish offers a sleek look that blends well with various firearm aesthetics. This suppressor is commonly found in builds utilizing a rifle gas system and .223 Wylde caliber, making it an excellent choice for builders seeking versatility and reliability in their AR-15 setups.
Specifications
SIG Sauer HEXIUM556 Titanium Suppressor, Black - HEXIUM556
Available Merchants(6)
Prices checked
Price Alert
November 2026 so far on GunPartPicker
SIG Sauer HEXIUM556 Titanium Suppressor, Black - HEXIUM556 ranks #17 of the 266 suppressors builders have added on GunPartPicker so far in November 2026, behind the Surefire SOCOM556-RC2, 5.56mm, FDE, Suppressor, with about 1% of all suppressors added to builds. Up from #26 in October. Builds with this suppressor are mostly chambered in 5.56 NATO (88%, then .223 Wylde 12%), mostly on mid-length gas (64%, then carbine-length 15%), and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 3 of the 6 retailers we track have it in stock. Buying today, the lowest price is $899.99 at Brownells, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
Radian Raptor Slim Line Ambidextrous AR-15 Charging Handle - Black
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the SIG Sauer Hexium556 Titanium Suppressor, Black - HEXIUM556
| Build | Parts | Total |
|---|---|---|
 | 20 | $3609.03 |
 | 16 | $2733.43 |
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