FN FN15 GUARDIAN | 5.56 NATO | 16 inch | 10+1

The FN15 Guardian is a lightweight 5.56 NATO carbine from FN America / FN Herstal designed for accurate, reliable service in sport-shooting applications. It features a nitride-treated 16-inch barrel, a 15-inch free-float M-LOK handguard, and a mid-length gas system to moderate recoil impulse. For an optic under $1000 that suits this platform, consider a 1-6×24 low-power variable optic such as the Vortex Strike Eagle for close-to-medium range versatility and fast target acquisition. Typical uses for this rifle include precision-oriented range training and competitive practical shooting.

Product Specifications

• The model is FN15 Guardian.
• The manufacturer is FN America / FN Herstal.
• The caliber is .223 Rem / 5.56 NATO.
• The action is Semi-Auto.
• The barrel measures 16 inches and is nitride coated.
• The twist rate is 1:7 RH.
• The gas system is a mid-length system with a low-profile gas block.
• The handguard is a 15-inch free-float aluminum unit with 24 M-LOK slots and a continuous top Picatinny rail.
• The receiver is forged 7075 aluminum with a slick-side upper.
• The weight is 6.6 lbs..
• The capacity is 10+1 rounds and it ships with one 10-round metal magazine.
• The muzzle uses a 1/2×28 TPI A2-style compensator.
• The finish is Matte Black.
• The trigger is a MIL-SPEC trigger.
• The UPC is 845737017439.

The FN15 Guardian combines proven FN construction with practical features for serious shooters who value a balanced, controllable carbine. The 15-inch M-LOK handguard provides ample accessory mounting without adding unnecessary bulk, while the mid-length gas system and 16-inch nitride barrel support consistent performance across common 5.56 service loads. Its ergonomic furniture and a six-position stock make it adaptable for a range of users and shooting positions. This rifle suits shooters pursuing precise, repeatable performance at the range and in practical competition formats.

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