The LMT-AT ION LT in Armorer Black is the performance-first model of the LMT Advanced Technologies ION suppressor line, rated from .17 through .300 Win Mag (LMT-AT part no. ATIONLT). LMT-AT built it for users who put maximum performance, low back pressure and reduced blast exposure ahead of size. The body combines Inconel, stainless steel and titanium alloy, so it weighs 14.7 ounces with cap and base despite being the longest ION. A titanium regulator mount adaptor and a 7.62 titanium restrictor cap come pre-installed. It fits a precision or duty rifle that sees high round counts.

Key Specifications

• Multi-caliber support runs from .17 through .300 Win Mag, in the most performance-focused build in the line.
• Length is 8.14 inches with cap and base, and 7.51 inches for the welded body alone.
• Weight is 14.7 ounces with cap and base, and 12.8 ounces for the welded body alone, light for its length.
• Diameter is 1.74 inches, a slim tube that clears most handguards and optics.
• Construction is Inconel, stainless steel and titanium alloy with a laser-welded body.
• The kit includes a 5/8×24 single port muzzle mount, a pre-installed titanium regulator mount adaptor and a pre-installed 7.62 titanium restrictor cap.
• The finish is Cerakote Armorer Black, with a PVD-treated end cap and a DLC-coated muzzle device.

Frequently Asked Questions

How does the ION LT differ from the ION 30? LMT-AT says the ION LT emphasizes maximum performance and extended capability, while the ION 30 takes a more balanced approach across size, versatility and use cases. The trade-off is more length.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Is the ION LT full-auto rated, and are there barrel length limits? LMT-AT lists it as full-auto rated under the SOCOM stress test protocol of 1,440 rounds, with a service life of 30,000+ rounds, and lists no barrel length restrictions.

Buy the LMT-AT ION LT Performance Suppressor, .17-.300 Win Mag, Armorer Black

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through LMT-AT‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.