N6 Micro-Switchblock Large Marge 18" Upper

Engineered for long‑range performance and durability, the Noveske 4th Gen Upper pairs a match‑grade 18” 416R stainless barrel with a 4th‑Generation billet receiver and the NSR free‑floating handguard. Purpose‑built for precision rifle applications and suppressor compatibility, this assembly delivers consistent accuracy, reliable feeding, and long service life.

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Barrel

Available in 18” 6.5 Creedmoor (1:8 twist, semi‑poly rifling) or 18” 7.62×51 (1:10 twist). Each barrel is individually serialized for QC and features a hand‑polished Noveske Match Chamber and extended hand‑polished feed ramps for optimal feeding and precision. Other barrel features include:

• Rifle gas tube included

• Noveske Micro Switchblock® (.750” journal), pinned to the barrel, with three settings: Unsuppressed, OFF, or Suppressed

• Bead‑blasted finish

• 5/8”x24 muzzle threads with Noveske Pig Pen muzzle device

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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

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

• Nitride‑coated bolt carrier with dual ejectors and improved firing pin profile

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

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Handguard

• 4th Generation NSR 16.3” (M‑LOK) free‑floating handguard with dedicated cutout for the Switchblock

• 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

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Summary

The Noveske 4th Gen Precision Upper delivers a purpose‑built, long‑range platform—combining match‑grade 18” barrels, the adjustable Micro Switchblock system, and a robust billet receiver with a full‑length NSR handguard. With serialized barrels, hand‑polished chambers and feed ramps, and a Type III hardcoat anodize + Cerakote finish on receiver and handguard, this upper is optimized for precision, durability, and suppressor readiness.