FN Herstal has introduced the FN ARKA, a new 5.56 NATO rifle that combines familiar AR-15-style controls with the short-stroke piston reliability of the FN SCAR.
FN Introduces ARKA, a New 5.56 Rifle Built With SCAR DNA and AR Controls
FN Herstal
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From Armor to Answer: How the 5.7x28mm Was Built to Beat 9mm’s Limits
FN’s 5.7x28mm was designed for a late-Cold-War problem: compact weapons that could outperform 9mm where armor, range, and controllability mattered. It never replaced 9mm, but NATO standardization proved the cartridge was more than a failed experiment.