The Faxon ION-X Hyperlite Rifle (Faxon part no. FX5516X) is built around Faxon’s own AR-15 action and bolt carrier group with a 16-inch pencil-profile barrel for a genuinely lightweight build. Chambered in 5.56 NATO and also safe for .223 Remington, it uses a 1:8 twist rate and ships with a 30-round magazine. It comes without fixed sights, leaving the top rail open for the optic of your choice, and weighs approximately 4.9 pounds. An MFT collapsible stock, a 13-inch M-LOK carbon fiber handguard, and a HIPERFIRE EDT3 single-stage trigger round out a rifle designed to be as light and fast-handling as possible.

Key Specifications

• Chambered in 5.56 NATO for reliable AR-15 performance.
• Also safely fires .223 Remington ammunition through the same chamber.
• 16-inch pencil-profile barrel keeps overall weight to a minimum.
• Rifling twist rate of 1:8 stabilizes a wide range of bullet weights.
• Ships with a 30-round magazine.
• Ships without fixed iron sights, leaving the top rail open for the optic of your choice.
• Weighs approximately 4.9 pounds.
• MFT collapsible stock keeps the rifle light and simple.
• 13-inch M-LOK carbon fiber handguard saves further weight over aluminum.
• HIPERFIRE EDT3 single-stage trigger delivers a crisp, consistent break.

Frequently Asked Questions

What caliber does this rifle chamber? 5.56 NATO, also safe for .223 Remington.

How much does it weigh? Approximately 4.9 pounds.

What trigger does it use? A HIPERFIRE EDT3 single-stage trigger.

Buy the Faxon ION-X Hyperlite Rifle

Want one of the lightest AR-15 builds available? Order this Faxon Firearms rifle from our AR rifles lineup and we’ll ship it fast and insured to your local FFL from our Lubbock, Texas shop.