FN Herstal FNAR Heavy 7.62x51 NATO Semi-Auto Rifle, 20 in Fluted Heavy Barrel, Short-Stroke Gas Piston, 20+1, Belgium
The FNAR Heavy pairs a 20-inch fluted, cold hammer forged barrel with a short-stroke gas piston system derived from the Browning BAR. Its machined 7075-T6 aluminum receiver, hard-chromed bore and chamber, and one-piece 9.75-inch M1913 Picatinny top rail emphasize durability and setup flexibility. This example includes three factory 20-round magazines, the FN Herstal hard case, and stock fit accessories.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and small blemishes are visible on exterior surfaces. The bore is clean and shiny.
What’s Included
- FN Herstal factory hard case
- FNH USA FNAR owner's manual
- Interchangeable cheekpieces (loose)
- Assorted butt pads (loose)
- Maglula LULA magazine loader (packaged)
- 3x 20-round factory FNH USA FNAR steel magazines (FN-branded packaging visible; Product no. 3108929210)
The FNAR Heavy uses a semi-automatic, short-stroke gas piston system derived from the Browning BAR, delivering consistent operation with 7.62x51 NATO. It features right-side charging and ejection, an ambidextrous magazine release, a cross-bolt safety, and a two-stage, non-adjustable trigger. A bolt-forward indicator (red dot) provides a clear visual status of the action.
Its 20-inch heavy-profile barrel is chrome-moly steel, cold hammer forged, and fluted. The bore and chamber are hard-chromed, and a recessed crown completes the build. The 1:12 RH twist supports a broad range of 7.62x51 projectiles.
The receiver is machined from 7075-T6 aluminum with a hard-anodized finish. A one-piece M1913 Picatinny top rail runs approximately 9.75 inches for mounting equipment, while the synthetic forend integrates a tri-rail with side rails and an extended bottom rail plus a forward sling/bipod stud. The rifle is shipped without sights.
The fixed synthetic stock includes an integral pistol grip with the FN logo, interchangeable cheekpieces, multiple recoil pads, and a shim kit to fine-tune fit. Length of pull measures 13.75 inches, and a rear sling swivel stud is installed.
This rifle uses proprietary FNAR detachable box magazines and comes with three factory 20-round steel magazines. Markings include the FN oval logo, FNAR 7.62x51 MM, FN HERSTAL BELGIUM, and FNH USA FREDERICKSBURG, VA.