For operators and serious enthusiasts who demand a defensive-ready semi-auto with tuned ergonomics and precision potential, this rifle delivers a balanced package. The build prioritizes controllability, reliable gas management, and a crisp trigger for follow-up shots in real-world scenarios.

BLACKOUT DEFENSE Q15A QUANTUM is chambered in 223 Wylde with a 1/8″ twist rate, giving shooters flexibility to run a wide range of .223/5.56 profile bullets with improved accuracy potential. This rifle pairs a Keymo flash hider with an adjustable gas block and an ambidextrous charging handle for adaptable, user-friendly operation. It ships with a Blackout Defense 0 set trigger and a 1–30 round magazine, and the original box and manual are included. As a Certified Used option, it carries a stamp that assures very good to excellent condition and includes a ‘no questions asked’ return policy.

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Key features and field value

This Semi Auto platform emphasizes practical accuracy and controllability. The 223 Wylde chamber bridges the gap between .223 Rem and 5.56 NATO tolerances, making it an excellent choice for defensive use where compatibility and consistency matter. The 1/8″ twist rate stabilizes bullets from lighter varmint rounds up to heavier 77-grain projectiles used for precision or barrier performance.

Controls and gas system

The adjustable gas block allows fine-tuning when running suppressed or with different ammo loads, reducing felt recoil and ensuring bolt carrier cycling is optimized. The ambi charging handle facilitates positive manipulation from either side, useful for weak-hand transitions or tactical rig setups.

Trigger and muzzle device

The Blackout Defense 0 set trigger provides a defined break for faster, more accurate follow-up shots compared with standard mil-spec triggers. The Keymo flash hider helps manage muzzle signature and offers compatibility with modular muzzle device systems.

View product details and pricing — priced at $2,399.99, this Certified Used rifle represents a high-value option for shooters who want feature-rich performance without paying full list for a new build.

Who should consider this rifle

Choose this model if you need a versatile defensive Semi Auto with an emphasis on controllable recoil, adjustable gas tuning for suppressor use, and a trigger that enhances shot-to-shot consistency. The Certified Used designation and included original box/manual reduce uncertainty for buyers who value condition assurance and a straightforward return policy.

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