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Original price was: $999.00.Current price is: $899.10.

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🔇 No Form 4 needed — since October 9, 2026 a suppressor transfers on a standard Form 4473 and background check, with no tax stamp or wait. Texas buyers can complete it with us; out-of-state orders ship to an SOT dealer in your state. How it works.
Product Code: DD06-140-30111 Categories: , Brand:

Daniel Defense SoundGuard SG-6TI 6mm ARC titanium suppressor — DD’s purpose-built 6mm ARC suppressor, matching the DDM4V7 6mm ARC and DD5 platforms. Factory-matched titanium construction. $0 NFA stamp under OBBBA.

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Product Description

Update, October 9, 2026: ATF no longer requires a Form 4, tax stamp, fingerprints or registration for suppressors, short-barreled rifles, short-barreled shotguns or AOWs. They now transfer on a standard Form 4473 with a background check. Anything below that mentions a Form 4, a wait or a tax stamp was written before this change. What changed

The Daniel Defense SoundGuard SG-6TI is the factory-matched suppressor for DD’s 6mm ARC platform — built specifically for the DDM4V7 6mm ARC and DD5 series rifles. 6mm ARC (6mm Advanced Rifle Cartridge) was developed by Hornady in partnership with SOCOM as an intermediate precision cartridge: better long-range ballistics than 5.56 NATO, better suppressor performance than 6.5 Creedmoor at closer ranges, and compatibility with a standard AR-15 or AR-10 platform. The SG-6TI’s bore geometry and baffle design are optimized for 6mm (.243″) bullet diameter — not a repurposed .30 cal suppressor with excess bore clearance, but a suppressor engineered for 6mm specifically.

Titanium construction keeps the SG-6TI lightweight — a key consideration for the DDM4V7 6mm ARC, which is often used in precision roles where a heavy muzzle device affects balance and shooting position stability. The factory match between the SG-6TI and DD’s 6mm ARC rifles means the mount, gas port position, and dwell time have all been validated together.

DD SoundGuard SG-6TI Specifications

Spec Detail
Caliber Rating 6mm ARC (.243 diameter)
Construction Titanium
Native Pairing Daniel Defense DDM4V7 6mm ARC, DD5 6mm ARC
NFA Class Suppressor — no Form 4 required
Made in USA Daniel Defense, Black Creek, GA

Why 6mm ARC Was Built for Suppressed Use

SOCOM’s input into 6mm ARC’s development included suppressor performance requirements: the cartridge operates at pressures compatible with long-term suppressor service life, and its 108gr ELD Match loading produces sound levels at the suppressed threshold that 5.56 cannot approach. For hunters, competitive precision shooters, and defensive users who want a suppressed AR-15-pattern rifle with precision rifle terminal performance, the DDM4V7 6mm ARC plus SG-6TI is the natural system choice.

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

FAQ — DD SoundGuard SG-6TI

Can the SG-6TI run on 5.56 hosts in addition to 6mm ARC?

Yes — 6mm (.243″) bore accommodates both 5.56 (.224″) and 6mm ARC (.243″) bullets. The SG-6TI can be used on 5.56 hosts, though the SoundGuard 5.56 is optimized for that caliber. The SG-6TI is the right choice if your primary host is a 6mm ARC rifle and you want the factory-matched pairing.

First NFA purchase? Here is how buying one works now.

Additional information

Weight 1.125 lbs
Brand Daniel Defense
Finish

Mount Type

Caliber

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Out of stock — but we have these 6mm ARC cans on the shelf right now

Want this exact one? We can often get it in. Call (817) 393-4000 and we will tell you the real lead time, or browse everything in stock.

Buying a suppressor now: a Form 4473 and a background check. No Form 4.

Since October 9, 2026, ATF no longer requires a Form 4, tax stamp, fingerprints, photos or registration to buy a suppressor. It transfers like any other firearm: you fill out a Form 4473, pass a NICS background check, and it is yours. No months-long wait.

  • Texas buyers: suppressors are legal under Texas law. Western Sport has been an SOT / Class III dealer since 2007.
  • Outside Texas: we ship to an SOT dealer in your state, who completes the 4473 with you. Your state’s law still decides — some states ban suppressors, and some only allow ones registered with ATF.
  • Want it registered anyway? ATF still accepts a voluntary Form 4. Ask us.

What ATF changed on October 9, 2026
How buying a suppressor works now
Questions? Send us a message.

In Stock Now — Comparable Options

This item is out of stock. These are on the shelf today and ship or transfer the same way. Not sure which is the right swap? Call 817-393-4000 and we will tell you straight.