Daniel Defense Direct Thread Suppressor Mount, 5/8×24 to 1.375×24

Product Description

The Daniel Defense Direct Thread Suppressor Mount, 5/8×24 to 1.375×24 (part 06-140-02404) is a SOUNDGUARD direct-thread adapter converting the industry-standard HUB 1.375-24 UNS rear thread of a SOUNDGUARD suppressor to a 5/8 x 24 muzzle thread, so the can threads directly onto a 5/8 x 24 barrel with no muzzle device in the stack.

Key Facts

• Brand: Daniel Defense
• Model: SOUNDGUARD Direct Thread Suppressor Adapter, 5/8-24
• SKU / MPN: 06-140-02404
• Type: Direct-thread suppressor adapter – not an NFA item, no transfer required
• Suppressor interface: HUB 1.375-24 UNS, industry standard
• Muzzle thread: 5/8 x 24
• Designed for: SOUNDGUARD suppressors; 5/8 x 24 is the listed mounting thread for the SG-30, SG-30TI and SG-30TIL
• Function: Secure mounting, rapid attachment and detachment, host swapping within the can’s caliber rating

Steel or titanium, and matching the barrel

Daniel Defense offers the 5/8 x 24 adapter in two versions and the stated difference is material: one is identified as titanium, this one is not. Titanium is the choice when every ounce at the muzzle counts. We publish no weights for either, because Daniel Defense does not state them. Otherwise the only decision is your muzzle thread: 5/8 x 24 is the usual thread on .30-calibre and larger barrels, and the thread Daniel Defense lists on its DD5 rifles in 7.62x51mm. Related: suppressors and muzzle devices.

Ordering from Western Sport in Roanoke, TX

We have held an FFL since 2007, carry SOT credentials, and are a Daniel Defense master dealer with a gunsmith on the bench in Roanoke, Texas. Call 817-393-4000 and we will line up adapter, thread and caliber rating.

Frequently Asked Questions

Q: Which SOUNDGUARD suppressors use the 5/8×24 mounting thread?

A: Daniel Defense lists 5/8 x 24 TPI as the mounting thread for the SG-30, the SG-30TI and the SG-30TIL. The SG-556 and SG-6TI are listed with 1/2 x 28 TPI instead. 375-24 UNS interface at the rear of the can, which is the end this adapter threads into.

Q: Is this adapter an NFA item?

A: No. It is a threaded adapter with no serial number and no NFA status, so it needs no tax stamp, no Form 4 and no transfer through a dealer. The suppressor it mounts is the registered item. Western Sport is an SOT dealer and can handle the suppressor side of the purchase separately.

Q: What is the difference between this adapter and the titanium version?

A: Material. Daniel Defense identifies one 5/8 x 24 adapter as titanium; this part number is the standard version and is not described that way. 375-24 UNS interface and the same 5/8 x 24 muzzle thread, so they are interchangeable in fitment terms.

Q: Can I use this to run one suppressor on several rifles?

A: Yes. Daniel Defense states the HUB direct-thread attachment lets a SOUNDGUARD be switched from one firearm to another compatible-caliber firearm with an appropriately threaded muzzle. Own an adapter for each thread you run and the can moves between hosts, within its caliber rating.

Q: Does the adapter go over a muzzle device or replace it?

A: Direct thread means the suppressor threads onto the bare muzzle thread, so no muzzle device is involved in the mount. If you currently run a flash suppressor or brake on a 5/8 x 24 muzzle, it comes off to use this adapter.

Q: How much does this adapter weigh and how long is it?

A: We are not stating a weight, length or material for this part number, because Daniel Defense does not publish those figures for it and we would rather leave a spec out than get one wrong on a suppressor mount. Call 817-393-4000 and we will confirm the dimensions before you order.

Additional information