SIG Sauer Suppressors

SIG Sauer SRD556-QD

Specs, variants & prices

SIG Sauer has discontinued the SRD556-QD suppressor, but still lists one version on its site, rated for 5.56 NATO. It is 6.5" long. SIG Sauer's suggested retail price is $750, and stores set their own prices from there.

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What versions of the SIG Sauer SRD556-QD are there?

0 current and 1 discontinued version. Specs and measurements are SIG Sauer's own.

Version	Model / part #	Caliber	Diameter	Attachment	Overall length	Weight	Finish	MSRP	Status
SRD556-QD	SRD556-QD	5.56 NATO	1.625"	Fast-Attach	6.5"	14 oz	Inconel 718 / Stainless Steel	$750	Discontinued

SRD556-QD
—
Model / part #
SRD556-QD
Caliber
5.56 NATO
Diameter
1.625"
Attachment
Fast-Attach
Overall length
6.5"
Weight
14 oz
Finish
Inconel 718 / Stainless Steel
MSRP
$750
Status
Discontinued

What calibers is the SRD556-QD rated for?

It's rated for 5.56 NATO.

How much does a SIG Sauer SRD556-QD cost?

SIG Sauer's suggested retail price is $750.

Can you buy one in California or Massachusetts?

SIG Sauer leaves California and Massachusetts blank for this suppressor. A dealer can transfer one only where that state allows suppressors. State rules change, so check our California and Massachusetts pages before you buy.

Nothing new on the SRD556-QD lately.

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Specs from SIG Sauer, checked June 3, 2026 (source). SIG Sauer's site blocks scripted requests, so this table was read from a saved copy of the product page. Spot a mistake? Let us know and we'll fix it. SIG Sauer is a trademark of its owner, listed for identification only. Firearms Almanac isn't affiliated with SIG Sauer.