FN Herstal unveiled the ARKA on June 2, a new 5.56x45mm NATO rifle that transplants the SCAR's battle-proven short-stroke gas piston operating system into a platform purpose-built around AR-15 ergonomics and full compatibility with AR-15 accessories. Soldier Systems Daily and The Firearm Blog each reported the launch ahead of the rifle's public debut at Eurosatory, the Paris-area international defense exhibition running June 15-19 at the Paris Nord Villepinte Center.

The ARKA ships at launch in two configurations, both built around M-LOK handguards and standard AR furniture. The CQC variant runs an 11.25-inch barrel with a short handguard and weighs roughly 8.2 pounds empty — a package sized for vehicle crews, close-quarters roles, and operators who value maneuverability over barrel length. The standard variant carries a 14.5-inch barrel and comes in at approximately 8.6 pounds; that length places it squarely in line with NATO service rifle norms and balances terminal ballistics with packability. Both configurations are finished in either black or flat dark earth and feed from standard STANAG 30-round magazines.

The gas system is the story. Unlike a direct-impingement AR-15, which routes combustion gas back into the bolt carrier group, the ARKA borrows the SCAR's short-stroke piston arrangement to keep hot propellant gases forward of the action. An adjustable gas regulator lets the shooter tune the system for suppressed fire, harsh environmental conditions, or non-standard loads. FN engineered the gas path specifically to reduce blowback toward the shooter during suppressed operation — a detail that matters as suppressor adoption continues to climb among both military end users and civilian enthusiasts. The cyclic rate is listed at 600 to 700 rounds per minute in selective-fire configurations; a semi-automatic-only variant is also offered for law enforcement and markets where full-auto select is not permitted.

All controls are fully ambidextrous — safety selector, magazine release, charging handle, and bolt catch — a specification increasingly required in modern military procurement documents. Any AR-compatible buttstock or pistol grip drops straight onto the ARKA, which means armories running large inventories of AR furniture won't need to source additional spares.

FN positions the ARKA as a complement to the SCAR family rather than a replacement. The two-platform strategy gives procurement officers a choice between the SCAR's proprietary ergonomics and caliber modularity and the ARKA's AR-footprint compatibility, letting militaries already fielding AR-15 parts inventories slot in a piston-driven rifle without retraining armorers or overhauling logistics chains. Guns.com, which covered the ARKA on June 3, described the concept as "SCAR meets AR" — a shorthand that captures the design intent accurately.

No U.S. consumer pricing, civilian semi-automatic variant, or ATF import classification has been disclosed. For a civilian version to reach FN-USA dealers, the rifle would need to clear ATF importability review, a process FN has navigated before with the SCAR 16S and SCAR 17S. Given the company's history of eventually commercializing its military platforms for the American market, the ARKA is widely expected to follow the same path, though no domestic product roadmap has been announced.

Watch for configuration updates, additional caliber announcements, and any civilian-variant timeline following the Eurosatory show in mid-June. FN-USA's press office has not confirmed a domestic launch schedule, and what gets announced on the range in Paris could sharpen that timeline considerably.