SIG Sauer Accessories
SIG Sauer SRD mounts
Specs, variants & prices
SIG Sauer currently makes 7 versions of the SRD mounts accessory, for 338 Lapua Mag, 5.56 NATO and 7.62 NATO. SIG Sauer's suggested retail prices run from $72.99 to $129.99, and stores set their own prices from there. The table below lines up every version so you can compare them at a glance.
What versions of the SIG Sauer SRD mounts are there?
7 current versions. Specs and measurements are SIG Sauer's own.
SRD338Ti-QD Taper-Lok Muzzle Brake - M18 X 1.5 LH
—- Model / part #
- SRD-338-M18X15-B
- Caliber
- 338 Lapua Mag
- Threads
- M18 X 1.5mm LH
- Weight
- —
- MSRP
- $129.99
SRD556-QD Taper-Lok CQB Flash Hider - 1/2 x 28 TPI
—- Model / part #
- SRD-556-12X28-F
- Caliber
- 5.56 NATO
- Threads
- 1/2 in - 28 tpi
- Weight
- —
- MSRP
- $79.99
SRD556-QD Taper-Lok Muzzle Brake - 1/2 x 28 TPI
—- Model / part #
- SRD-556-12X28-B
- Caliber
- 5.56 NATO
- Threads
- 1/2 in - 28 tpi
- Weight
- 2.8 oz
- MSRP
- $79.99
SRD762-QD Suppressor Flash Hider - 1/2 x 28 TPI
—- Model / part #
- SRD-762-12X28-F
- Caliber
- 7.62 NATO
- Threads
- 1/2 in - 28 tpi
- Weight
- —
- MSRP
- $99.99
SRD762-QD Taper-Lok CQB Flash Hider - 5/8 x 24 TPI
—- Model / part #
- SRD-762-58X24-F
- Caliber
- 7.62 NATO
- Threads
- 5/8 in - 24
- Weight
- —
- MSRP
- $99.99
SRD762-QD Taper-Lok Muzzle Brake - 1/2 x 28 TPI
—- Model / part #
- SRD-762-12X28-B
- Caliber
- 7.62 NATO
- Threads
- 1/2 in - 28 tpi
- Weight
- —
- MSRP
- $72.99
SRD762-QD Taper-Lok Muzzle Brake - 5/8 x 24 TPI
—- Model / part #
- SRD-762-58X24-B
- Caliber
- 7.62 NATO
- Threads
- 5/8 in - 24
- Weight
- —
- MSRP
- $99.99
What calibers does the SRD mounts come in?
Versions are listed for 338 Lapua Mag, 5.56 NATO and 7.62 NATO.
How much does a SIG Sauer SRD mounts cost?
SIG Sauer's suggested retail prices run from $72.99 to $129.99, depending on the version.
Can you buy one in California or Massachusetts?
SIG Sauer leaves California and Massachusetts blank for this product. Some states limit which accessories a dealer can sell. State rules change, so check our California and Massachusetts pages before you buy.
What's the latest on the SRD mounts?
Nothing new on the SRD mounts lately.
Specs from SIG Sauer, checked October 28, 2025 (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.