Home / Gun Care & Accessories / Noveske / Noveske AR-15 N4 SPR Complete Upper Receiver 6mm ARC 18" Barrel NSR-15 M-LOK Handguard Black
▼ 2% below avg
Noveske AR-15 N4 SPR Complete Upper Receiver 6mm ARC 18" Barrel NSR-15 M-LOK Handguard Black
Lowest Listed Price
$1,635.66
MSRP
$1,800
Savings
9% off
Retailers Reporting In Stock
0 Stores
Updated
Sep 8, 2026
Compare Deals from 2 Retailers
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"Charging Handle"
["18, 6mm ARC, 416R, 1:7 Twist\"","Rifle-Length Gas Tube with Pinned Gas Block","Noveske Pig Pen Suppressor-Compatible Muzzle Device","Noveske Gen 4 Upper Receiver","Ambidextrous Charging Handle","Full-Auto Bolt Carrier Group","DLC Coated Noveske Bolt","M-LOK Handguard with Continuous Picatinny Top Rail"]
Description
This Noveske N4 Complete AR-15 Upper Assembly comes fully assembled and ready to drop onto any standard AR-15 lower receiver. The N4 upper is a precision machined billet receiver from 7075-T6 with extended feed ramps. The upper is finished with Hardcoat type III anodizing, with Cerakote ceramic black coating for the ultimate finish and performance. Additional features include a pinned gas block, a Pig Pen suppressor compatible flash hider, and a shot-peened, MP-tested bolt housed within a Mil-Spec bolt carrier. This upper includes a Noveske NSR handguard with the M-Lok rail system and, with an outside diameter of only 1.48" (without accessories attached), it is one of the slimmest, lightest, customizable handguards available for the AR-15 platform. The NSR free floats the barrel for greater accuracy potential and provides a full length, continuous top rail for the addition of optics and/or accessories (additional add-on rail sections sold separately). M-Lok accessories are quick and...
