Rock River Arms Rifle Uppers for Sale

Within Rifle Uppers, Rock River Arms, Inc. (United States) has been a dedicated maker since the early 2000s, evolving from late‑1990s AR work to a standing catalog of complete uppers that spans its small‑frame, large‑frame, pistol‑caliber, big‑bore, and rimfire lines. Its uppers are notable for accuracy‑driven .223 Wylde National Match and varmint options and for proprietary receiver choices like the raised‑rail EOP for scope clearance and the true left‑handed LEF‑T configuration.