F1 Firearms FU KING F-15 — 5.56 NATO 

• Make / Model: F1 Firearms — FU KING F-15

• Type: Semi?automatic rifle (AR?pattern / F?series platform style)

• Caliber: 5.56×45mm NATO / .223 Rem 

• Barrel: 18"

• Stock / Brace: Adjustable telescoping stock

• Pistol Grip: Standard AR grip (specify aftermarket if installed).

• Sights / Optics: Usually ships with iron sights or optic?ready (Picatinny rail) — list any installed optic or back?up irons.

• Trigger: Mil?spec single?stage or upgraded aftermarket (specify make/model if changed).

• Weight (approx): Varies by barrel and furniture — typical range 6.5–8.5 lb unloaded for common configs.

• Serial / Markings: Photo and list serial number, model engraving, and any limited/unique markings.