The Faxon Firearms Ion Ultralight in .223 Rem/5.56 NATO (brand part no. FX5500) is the most affordable production ultralight AR15 on the market, weighing in at just under 5 pounds around a 16-inch barrel. Faxon Firearms builds the Ion as part of its Summit Line, shipping with a full slate of out-of-the-box upgrades including a tuned gas system, a Gunner lightweight bolt carrier group, an ambidextrous charging handle and safety selector, and a Hiperfire EDTDM trigger. The rifle ships without fixed sights, ready for an optic, and feeds from a magazine with a 30-round capacity. Among AR-platform rifles in the AR rifles category, the Ion Ultralight favors competition shooters and anyone who wants the soft recoil of a finely tuned lightweight rifle.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• Weighs just under 5 pounds, the lightest production AR15 in its class.
• Features a 16-inch barrel.
• Runs a tuned gas system for soft recoil.
• Built with a Gunner lightweight bolt carrier group.
• Includes an ambidextrous charging handle and safety selector, model Radian Talon 45/90.
• Runs a Hiperfire EDTDM trigger.
• Ships optic-ready with no fixed sights.
• Feeds from a magazine with a 30-round capacity.

Frequently Asked Questions

How much does this rifle weigh? Just under 5 pounds, making it one of the lightest production AR15s available.

What trigger does this rifle use? A Hiperfire EDTDM trigger.

What is this rifle designed for? Competition shooting or anyone who wants the soft recoil of a finely tuned lightweight AR15.

Buy the Faxon Firearms Ion Ultralight

The most affordable production ultralight AR15 on the market is exactly what the Ion delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.