The Grand Power Stribog SP10A3 is a modern pistol-caliber platform engineered around the powerful 10mm Auto cartridge, expanding the Stribog lineup beyond traditional 9mm configurations. Built with a monolithic aluminum upper receiver paired to a polymer lower, it features an 8 in threaded barrel, M-LOK handguard & full-length Picatinny top rail for optics & accessories. The SP10A3 utilizes a roller-delayed blowback system derived from the A3 series, improving recoil characteristics over standard blowback designs. It includes fully ambidextrous controls, a non-reciprocating reversible charging handle & dual-style magazine release system, while feeding from proprietary 20 rd magazines. Designed for defensive use, range shooting & compact PDW applications, the SP10A3 combines compact dimensions with significantly increased ballistic performance compared to 9mm platforms. The SP10A3 is widely regarded for its strong performance, controllability & reliability despite the increased power of the 10mm cartridge. The roller-delayed system helps reduce felt recoil, allowing smoother cycling & faster follow-up shots compared to traditional blowback designs. Its robust construction & simple operating system contribute to dependable function across a range of ammunition, while the heavier bolt mass & reinforced design accommodate the higher pressures of 10mm. Grand Power has established a reputation for precision machining & innovative firearm engineering, & the SP10A3 reflects that with solid build quality, improved recoil management & effective performance as a compact, high-energy pistol-caliber platform.