N4 INFIDEL UPPER 13.7

Barrel (416R Stainless)

• 13.7” 5.56mm, 416R stainless, 1:7 twist

• Individually serialized for QC; hand‑polished Noveske Match Chamber; extended hand‑polished feed ramps

• Mid‑length gas tube system; Noveske‑marked low‑profile gas block (.750” journal), pinned to barrel

• M4 barrel extension; bead‑blasted finish

• ½”‑28 muzzle threads with a Noveske KX3 flash suppressor permanently pinned & welded

• Upper Receiver

  • Noveske 4th Generation precision‑machined billet receiver from 7075‑T6 aluminum with extended feed ramps

  • Type III hardcoat anodize + Cerakote finish for uniform color and superior durability

  • Black nitrided Noveske‑marked forward assist

  • Noveske Love Handle ambidextrous charging handle with anti‑rotation interface to the handguard

  • Phosphate‑coated bolt carrier, full‑auto compatible, chrome‑lined carrier bore and key

  • Properly staked Grade‑8 American‑made gas key bolts

  • Phosphate Carpenter 158 bolt (heat‑treated, MPI tested) where specified

  • Handguard

    • 4th Generation NSR 15” (M‑LOK) free‑floating handguard

    • Type III hardcoat anodize + Cerakote finish for uniform color and long‑lasting wear resistance

    • M‑LOK mounting positions every 45° and continuous Picatinny 1913 top rail

    • Lightweight American‑made steel barrel nut