The Noveske N4 SPR 6mm ARC is an 18-inch special purpose rifle chambered in 6mm ARC. It has a Geissele SSA-E trigger and a B5 Systems precision stock.
Noveske Rifleworks builds AR-pattern rifles and pistols, and its N4 line is built on the company's 4th Generation receivers. The N4 SPR 6mm ARC is its 18-inch special purpose rifle, chambered for the 6mm Advanced Rifle Cartridge.
6mm ARC was designed to reach much farther than 5.56 while still fitting an AR-15 size receiver. Noveske builds this barrel from 416R stainless with a 1-in-7 twist and three land and groove rifling, and each barrel is individually serialized for quality control. It has a hand polished Noveske Match Chamber, a rifle-length gas system and 5/8x24 threads with a device that works with Noveske's Pig Pen suppressor.
The upper and lower are Noveske's 4th Generation billet receivers, machined from 7075-T6 aluminum and finished with Type III hardcoat anodizing plus Armor Black Cerakote. The upper has extended feed ramps and the Noveske Love Handle ambidextrous charging handle. The lower has an oversized flared magazine well, an oversized trigger guard, and ambidextrous bolt and magazine releases. The bolt is a DLC coated Noveske 6mm ARC and 6.5 Grendel bolt made from SAE 9310 steel.
The handguard is Noveske's 4th Generation NSR-15 M-LOK rail with a Picatinny top rail. For precision work, Noveske fits a Geissele Super Semi-Automatic Enhanced trigger, a crisp two-stage unit, and a B5 Systems Collapsible Precision Stock with a Type 23 grip. Magpul MBUS Pro steel sights are fitted as backups.
The rifle measures 33.75 inches with the stock collapsed and weighs 7.1 pounds dry. It comes with one 20-round steel magazine.
If you want an AR that reaches well past typical 5.56 distances without moving up to a heavy AR-10, the N4 SPR in 6mm ARC is a well-thought-out option from a maker known for accurate barrels.
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