Home » Shop » Advantage Arms 1.75X9 Modular, Suppressor, 9″ Length, 1.75″ Diameter, Stainless Steel Construction, Silver
ADV ARMS 1.75X9 MODULAR SUP 338LAP

$399.00

Out of stock

🔇 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: AAC-175X9 Category: Brand:

Advantage Arms 1.75×9 modular .338 Lapua suppressor NFA precision rifle. No Form 4 needed. Western Sport TX.

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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

⚠ SUPPRESSOR — NO FORM 4 REQUIRED
Since October 9, 2026, ATF no longer requires a Form 4, tax stamp, fingerprints, photos or registration for suppressors. It transfers like any other firearm: a Form 4473 and a NICS background check. Buyer must be 21 or older and allowed to own a suppressor under their state’s law. Outside Texas, we ship to an SOT dealer in your state. What changed · How buying one works now

Advantage Arms 1.75×9 Modular .338 Lapua Suppressor

The Advantage Arms 1.75×9 Modular .338 Lapua is a full-length modular .338 Lapua Magnum suppressor — 1.75″ outer diameter x 9″ length. .338 Lapua Magnum is a large-bore, high-pressure precision cartridge — suppressing it requires a robust suppressor design rated for the extreme pressures and bore requirements of .338 LM. Modular design allows configuration changes. Also covers .308 Win, .300 Win Mag, and compatible smaller calibers.

Spec Detail
Caliber .338 Lapua Magnum and smaller compatible calibers
Dimensions 1.75″ OD x 9″ length — full-length
Design Modular
NFA Class Suppressor — no Form 4 required

Advantage Arms

Advantage Arms manufactures .22 LR conversion kits and a full line of suppressor products. Their suppressors are identified by bore diameter and length (e.g., 1.75″ x 2.5″) to give shooters a clear picture of size vs. suppression tradeoff. The lineup covers 5.56, .308, .338 Lapua, and includes modular multi-length configurations. Titanium variants are available for weight reduction.

FAQ

Since October 9, 2026 it transfers on a standard Form 4473, with no Form 4 or tax stamp. Current ATF approval times vary — see our NFA wait times guide.

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.

Additional information

Weight 2.312 lbs
Brand Advantage Arms
Caliber

Finish

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Out of stock — but we have these .338 Lapua 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.

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