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Original price was: $1,799.99.Current price is: $1,699.99.

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🔇 NFA made simple — we are an SOT/Class III dealer and walk you through the entire ATF process in-house. Questions? Call (817) 393-4000 before you buy.
Product Code: SGNG68SPEAR-QD Category: Brand:

Sig Sauer NG68 Spear QD 6.8×51 suppressor in Coyote, with mount — Sig’s factory-designed suppressor for the MCX Spear 6.8×51 NGSW platform. Clutch-LOK QD system, optimized for .277 Fury ballistics. $0 NFA stamp under OBBBA.

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Product Description

⚠ NFA ITEM — SUPPRESSOR
This is a federally regulated suppressor (silencer) under the National Firearms Act. Purchase requires a BATFE Form 4 transfer, background check, and $200 NFA tax stamp — now $0 under the One Big Beautiful Bill Act (OBBBA). Buyer must be 21+, a US citizen, reside in an NFA-legal state, and have no disqualifying criminal history. Allow about two weeks or less for ATF approval. Western Sport handles all paperwork — call 817-393-4000.

The Sig NG68 Spear QD suppressor is the factory-matched can for the MCX Spear 6.8×51 NGSW platform — engineered specifically to handle the unique pressure profile, bore diameter, and energy of the .277 Fury cartridge. The NG68 designation directly mirrors the NGSW naming (Next Generation 6.8mm) — this is not a repurposed 7.62 suppressor adapted for 6.8×51. Sig designed and tested the NG68 alongside the MCX Spear as an integrated system. The Clutch-LOK QD mount engages the MCX Spear’s factory QD flash hider in a fraction of a second, and the mounts included ensure immediate compatibility. In Coyote, it matches the MCX Spear CT (Coyote Tan) for a cohesive system appearance.

6.8x51mm (.277 Fury) operates at higher pressures than 7.62 NATO — even in commercial brass-case loads, the 6.8×51 pushes harder than .308. The NG68’s baffle geometry and Inconel construction handle this elevated pressure regime with the same service life rating as Sig’s standard rifle suppressors. For MCX Spear 6.8×51 owners, the NG68 is the only suppressor purpose-built for their platform.

Sig NG68 Specifications

Spec Detail
Caliber Rating 6.8x51mm (.277 Fury) and smaller calibers
Platform Factory-matched for Sig MCX Spear 6.8×51
Mount Clutch-LOK QD (mount included)
Finish Coyote
NFA Class Suppressor — Form 4, $0 stamp (OBBBA)
MSRP $1,699.99

Why Buy From Western Sport?

Western Sport is a licensed FFL/SOT dealer in Roanoke, Texas, specializing in NFA firearms and suppressors since 2007. We stock Sig Sauer’s full suppressor lineup and walk every buyer through the Form 4 process. Call 817-393-4000 — our team knows Sig suppressors inside and out and can help you match the right can to your host firearm.

FAQ — Sig NG68 Spear QD

Can the NG68 run on 5.56 or 7.62 hosts?

Yes — the NG68 bore accommodates .277″ and smaller bullets, so 5.56 (.224″) and 7.62 (.308″) both fit and can be used if the mount is compatible. The NG68 is however optimized for 6.8×51 in its baffle geometry and pressure ratings. For dedicated 5.56 or 7.62 use, the SLX SURGE 556 or SLXC 762 are better choices.

Does the mount come installed?

The NG68 Spear QD ships with the Clutch-LOK mount included. Install the mount on your MCX Spear’s QD flash hider per the included instructions and the NG68 attaches and detaches in seconds.

Recent eForm 4 approvals have been coming back in about two weeks or less — see our NFA wait times guide for current figures.

Additional information

Weight 2.062 lbs
Brand Sig Sauer
Finish

Mount Type

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First suppressor? Here is how buying one actually works.

Western Sport has been an SOT / Class III dealer in Roanoke, Texas since 2007. You buy the can here, we hold it in the safe, and we file the ATF paperwork for you — fingerprints and photo included. Your federal tax stamp is $0.

NFA Made Simple — the step-by-step
What the August 2026 court ruling actually changed
Questions? Call us at (817) 393-4000.

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