Features of the FN 15 Guardian 5.56x45mm [Video]

Introducing the FN 15 Guardian, taking the FN battle-proven blueprint to a brand new rifle.

Scott Vilardi, FN 15 product manager, Introducing the FN 15 Guardian. The FN 15 Guardian is a reengineering of FN TAC3 line, removing the forward assist from the upper receiver. The FN 15 Guardian has a mid-length gas system, low-profile gas block and a 16-inch nitride coated barrel and 9310 steel bolt. The pistol grip and magazines are in-mold stippled for superior grip, with the 6-position stock offering a tight lock-up and an ideal cheek weld. The lower receiver is the 7075 forged aluminum receiver with the mill spec trigger group and magazine release and fire control. A 24-slot M-LOK® free-float aluminum handguard offers all the mounting real estate for lights and sights and an anti-rotation pinch-lock design mates to the upper receiver, ready to mount any optic.

How Much is the FN 15 Guardian?

The MSRP on the FN 15 Guardian is $999.

Get Your FN 15 Guardian Today on GunBroker.com!

FN 15 Guardian

Features of the FN Guardian: 

Primary Features:

  • 15-inch free-float handguard with continuous 12 O’clock Picatinny rail, 24 M-LOK® slots at 3, 6 and 9 O’clock
  • Precision-tuned 16-inch barrel, mid-length
  • Mid-length gas system, low-profile gas block


  • Slick-side upper receiver reduces snag points and cleaning time
  • 9310 Steel bolt, M16-style bolt carrier group, MPI/HP tested
  • Gas key MIL-SPEC sealed, torqued and staked
  • Forged 7075 lower receiver; hard coat anodized


  • 16-inch nitride coated barrel; 1:7 twist
  • 4150 Chrome-Moly-Vanadium Steel MIL-B-11595 MPI/HP tested
  • High pressure tested, MPI after proof firing
  • A2-style flash hider, 1/2”x28 TPI


  • 15-inch extruded aluminum, free-floating, continuous top rail, 24 M-LOK® slots
  • Custom FN 6-position, snag-free buttstock with multiple sling attachment points
  • Ergonomic FN pistol grip at 19.5° angle and aggressive texturing for complete control


  • MIL-SPEC trigger
  • MIL-SPEC charging handle and safety selector


  • 30-round FN polymer magazine

FN 15 Guardian Specifications: 

  • CALIBER: 5.56x45mm
  • OPERATION: Direct impingement
  • MAG CAPACITY: 30 Rd.
  • WEIGHT: 6.6 lb.
  • OVERALL LENGTH: 32.1″ – 35.5″
  • TWIST RATE: 1:7 RH

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