The Q BoomBox SBR chambered in 8.6 Blackout is a compact, high-performance short-barreled rifle that blends AR-15 handling with AR-10 power. Designed as a lightweight AR-10 platform that feeds from AR-10 magazines while maintaining the agility of an AR-15, the BoomBox delivers exceptional versatility in a highly refined package. Built to be incredibly lightweight, extremely reliable, and mission-ready, this 8.6 BLK SBR is engineered to run both subsonic and supersonic ammunition effectively eliminating the need for multiple rifle setups. Purpose-built around the 8.6 Blackout cartridge, the BoomBox SBR offers serious terminal performance without requiring shooters to adopt an entirely new rifle system. It is optimized to perform exceptionally well with heavy subsonic loads for suppressed shooting while also delivering impressive energy and trajectory with supersonic rounds.

This dual-capability makes it an outstanding choice for hunters, tactical shooters, and enthusiasts looking for one rifle that can handle a wide range of applications, from close-quarters work to extended-range engagements. A standout feature of the Q BoomBox is its two-piece bolt carrier group (BCG), which delivers the strength and reliability of a full-size BCG with enhanced serviceability and tighter manufacturing tolerances. By machining the carrier in two separate components, Q is able to maintain stricter dimensional control during production. The result is a bolt carrier group that is easier to disassemble, easier to maintain, and engineered to meet exacting specifications for long-term durability and consistent performance. The upper receiver is machined from high-grade 7075 aluminum and features a one-piece continuous top rail, providing a rigid, uninterrupted mounting platform for optics, backup iron sights, and accessories.

This monolithic-style rail enhances durability and ensures that mounted components retain zero under recoil and hard use. With fewer connection points, the system minimizes movement and maximizes reliability when precision matters most. The BoomBox SBR comes equipped with Q’s premium cassette-style two-stage trigger, designed to deliver a crisp break, ultra-short reset, and consistent pull. Easy to install and fully drop safe, this trigger is compatible with standard AR/M4 platforms and provides enhanced control for both precision shooting and rapid follow-up shots. Further enhancing performance is the Q-SERT handguard, engineered for an exceptional stiffness-to-weight ratio.

Lighter, stronger, and more rigid than many competing designs, the Q-SERT system allows for quick and secure attachment of accessories such as handstops and foregrips. This modern attachment interface keeps the rifle streamlined while maintaining structural integrity under demanding conditions. At the muzzle, Q’s precision-cut taper and Cherry Bomb XL muzzle device, threaded in M18x1.5 for the 8.6 Blackout platform, work together to provide secure and repeatable suppressor mounting. The tapered interface ensures proper alignment and sealing without the need for adhesives, while requiring greater torque to remove than to install. The result is reduced point-of-impact shift, improved suppressor stability, and dependable performance under heat and recoil.

Whether configured for suppressed shooting, hunting, tactical applications, or high-end collecting, the Q BoomBox SBR in 8.6 Blackout stands out as a premium option in the modern AR platform market. Combining lightweight construction, advanced engineering, and the hard-hitting performance of 8.6 BLK, the BoomBox delivers a versatile, innovative rifle system built for shooters who demand cutting-edge capability.

*This firearm is classified as a Class 3 NFA Item, The item is a NFA regulated short barreled rifle (SBR). Check your jurisdiction's NFA laws before ordering this rifle. Class 3 NFA items must ship to a class 3 FFL dealer with an SOT*

FEATURES

Chambered in 8.6 Blackout for superior subsonic and supersonic performance
Compact AR-10 platform with AR-15 handling characteristics
Short-Barreled Rifle (SBR) configuration for maneuverability and versatility
Compatible with SR-25 AR-10 pattern magazines
Two-piece bolt carrier group for enhanced reliability, tighter tolerances, and easier maintenance
Machined from high-grade 7075 aluminum for strength and durability
One-piece continuous top rail for rigid optics mounting and improved zero retention
Q-SERT handguard engineered for exceptional stiffness-to-weight ratio
Q-SERT attachment system for quick and secure accessory mounting
Premium two-stage cassette-style trigger with crisp break and ultra-short reset
Drop-safe trigger design compatible with standard AR/M4 platforms
Precision-cut tapered muzzle interface for secure suppressor alignment
Cherry Bomb XL muzzle device threaded M18x1.5 for 8.6 BLK
Optimized for suppressed shooting applications
Designed for hunting, tactical use, and high-performance range shooting
Lightweight, durable, and engineered for long-term reliability