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N4 Infidel 13.7" Upper

$1,525.00 - $1,775.00
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SKU:
250
CALIBER:
5.56mm
MODEL & GENERATION:
N4 4th Generation
BARREL LENGTH:
13.7" Infidel
TYPE:
Upper
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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

Barrel (Cold Hammer Forged)

  • 13.7” 5.56mm, Cold Hammer Forged (CHF), 1:7 twist

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

  • M4 barrel extension with extended hand‑polished feed ramps; 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