Olympic Arms H.F.R. 5.56 NATO AR-15 Semi-Auto Rifle, 16 in Barrel, Fixed Carry Handle, 2007–2008
This Olympic Arms H.F.R. is a U.S.-made AR-15 pattern rifle from the 2007–2008 era, identified by its KJ-prefix serial range and factory receiver markings. It features a fixed carry handle with A2 sights, a carbine-length gas system, and a 16-inch steel barrel with an A2 birdcage flash suppressor. It comes with four 20-round USGI-pattern magazines and a hard plastic rifle case.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: Some surface scratches are present.
What’s Included
- Hard plastic rifle case
- 4x 20-round USGI-pattern straight-body metal magazines
The lower receiver is marked "CAL: MULTI" and "MOD: H.F.R." with make marking "OLYMPIC ARMS – OLY WA USA." The KJ-prefix serial range aligns with 2007–2008 production, providing clear dating for buyers and collectors interested in period-correct Olympic Arms builds.
Sighting is classic A2: a fixed carry handle with an integrated A2-pattern rear sight paired to a forged A-frame front sight post with bayonet lug. The upper includes a forward assist, brass deflector, and ejection port dust cover. The selector is marked SAFE/FIRE and operates a standard manual safety.
The rifle uses a semi-automatic, direct-impingement operating system with a carbine-length gas system. Its 16-inch steel barrel is threaded and fitted with an A2 birdcage flash suppressor. The chambering is 5.56mm NATO and it feeds from STANAG-pattern magazines, with a stated capacity of 20+1 when using the included magazines.
Materials and finish are consistent with service-pattern ARs of the period: aluminum alloy receivers with a matte black hard-anodized finish, carbine-length ribbed two-piece polymer handguards, and a fixed gray polymer stock with a rear sling swivel. An A2 pistol grip and a 13.5-inch length of pull round out the furniture.