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Questions & Answers
What is the difference between the SRD762-QD brake and the SRD338-QD brake? Both fit on 5/8x24 barrels. Expert Answer

The difference will be the caliber that they are bored to. The SRD762 is going to be 7.62mm or .30 caliber. The SRD338-QD will be slightly larger for the .338 Lapua Magnum round.

by Kurt Colbourne, Gear Expert, April 22, 2021
Customer Reviews
Most Recent Reviews
Solid QD Adapter by scott, Verified Owner, May 23, 2021
Does what it is supposed to. Locks really hard sometimes to hard to even QD the suppressor. Threading is also deep enough to accommodate a longer than standard thread cut on barrel. Make sure to measure your threads correctly or you will be buying an...
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Product Discontinued by Manufacturer

SIG SAUER Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers has been discontinued by SIG SAUER and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Weapon Accessories, Gun Parts, Muzzle Devices, Muzzle Brakes & Compensators yourself to try and find the perfect replacement for you!

Product Info for SIG SAUER Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers

SIG SRD-338-58X24-B MB .338 5/8X24 - The Micro-Brake stabilizes the muzzle shot-to-shot when the silencer is not installed, reducing muzzle flip and felt recoil. It also provides a barrier between the muzzle blast and the blast baffle of the silencer. Once the silencer mount is attached to the barrel, the Micro-Brake is added with the provided crush washer. Simply turn the brake on the crush washer until the ports are timed in the desired orientation.image

Specifications for Sig Sauer Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers:

Mfg Item Num:  SRD33858X24
Supplier SKU:  02884
Category:  FIREARM PARTS
Finish:  Black
Type:  Muzzle Brake
Model:  .338 LM
Size:  338 Lapua Magnum
Thread Pattern:  5/8"-24 tpi

Package Contents:

  • SIG SAUER Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers

Riflescopes for Muzzle Brakes

160 / 60
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SIG SAUER Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers Unavailable & Discontinued Models

List of Unorderable Models

  • SIG SAUER Muzzle Brake Assembly, .338, Taper-Lok, 5/8X24 For Srd338-Qd Silencers , MPN: SRD-338-58X24-B , UPC: 798681525232 , Code: SD9-BMB-SRD33858X24
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Last updated 2026-09-16 UTC.