The video opens with the hosts enjoying suppressed subsonic .300 Blackout and immediately framing the discussion around how 8.6 Blackout builds on that concept. Clint from Classic Firearms introduces Jason and Kevin from Q, noting that this is the final video in their multi-day visit where they have learned a lot about Q and shot prototypes not yet on the market. Clint admits he was initially skeptical about 8.6 Blackout, wondering why another new caliber was needed, but says that after shooting it the benefits became obvious. Kevin explains that .300 Blackout was originally created at the Navy’s request as a superior option to short-barreled 5.56, giving better performance in compact, suppressed platforms. About a dozen years ago, after the success of .300 Blackout, Kevin and Q’s head of engineering, Ethan Lessard, began working on what became 8.6 Blackout to bring a similar blackout-style solution to .308-based guns. Technically, 8.6 Blackout is a shortened 6.5 Creedmoor case necked up to .338, designed around very fast twist rates. This combination is intended to increase energy on target, improve bullet expansion and penetration, flatten trajectory, and tighten subsonic dispersion. Compared to .300 Blackout, 8.6 Blackout offers roughly triple the effective range and energy while launching much heavier bullets, yet still aims to keep overall weapon size and weight surprisingly manageable.
The conversation shifts to Q’s new lightweight gas gun nicknamed the Boom Box. This rifle is built around an SR25-style pattern but is dramatically lighter than traditional .308-based semi-autos. Kevin describes an under-5-pound configuration with an 8-inch 8.6 Blackout barrel featuring a 1:3 twist, and a compact 12-inch .308-based setup that still weighs under 6 pounds. The Boom Box uses a switch-barrel system that allows users to run 8.6 Blackout, .308, 6.5 Creedmoor, and 6 Creedmoor with 12- and 16-inch barrel options. It supports both PDW-style and more traditional stocks, and incorporates a very stiff handguard with a one-piece top rail tying the receiver and handguard together. The rifle is Qert compatible and allows direct mounting of accessories. While the Honey Badger remains an excellent .300 Blackout platform, Q positions the Boom Box as its big brother and next-generation evolution, effectively making the Honey Badger obsolete in their own lineup.
On the range, the hosts compare .300 Blackout and 8.6 Blackout at distances out to roughly 350 yards. They note that even at 50 yards, 8.6 Blackout delivers a noticeably more authoritative impact on steel, both audibly and visually. The larger .338 projectiles carry significantly more energy downrange, and the difference becomes more pronounced as distance increases. The Boom Box, configured as a very lightweight, compact 12-inch .308-based weapon system, is contrasted with heavier Knights Armament and SIG MCX/Spear setups, coming in more than 3 pounds lighter. The hosts highlight how this weight savings does not come at the expense of performance. They also emphasize the dramatic size difference between .300 Blackout and 8.6 Blackout projectiles, pointing out that a 350-grain subsonic 8.6 bullet is actually longer than an entire .300 Blackout cartridge. This extra length and mass translate into deep penetration, sustained velocity, and strong terminal effect on target.
The discussion dives into the physics behind 8.6 Blackout’s performance. Fast twist rates, such as 1:3 compared to more conventional 1:10, are central to the design. At subsonic velocities, rifle bullets typically struggle to expand because they lack the frontal surface area and impact speed needed to open up reliably. By spinning the bullet much faster, 8.6 Blackout makes expansion easier and dramatically increases the cutting surface once the projectile opens. Kevin likens the expanded 8.6 bullet to a tree with roots, creating massive trauma in soft tissue. The heavy 300- to 350-grain bullets maintain velocity and penetrate deeply, while the fast twist stabilizes them and tightens dispersion, especially in subsonic loads. This approach effectively triples the range and capability compared to .300 Blackout, with only a minimal penalty in overall weapon size and weight, making 8.6 Blackout suitable for both precision and terminal effect at extended distances.
Kevin explains that the 8.6 Blackout program was originally driven by military requirements. The goal was to give “good guys” better signature reduction, extended effective range, and more reliable energy on target from compact, suppressed rifles. Those same attributes translate directly into civilian roles. For home defense and personal defense, 8.6 Blackout offers controllable recoil, strong terminal performance, and excellent suppression potential. The hosts specifically call out the truck gun concept, noting how well an 8.6 Blackout setup fits that role due to its compact size, light weight, and versatility. They emphasize that a short, fast-twist barrel with a quality suppressor can deliver quiet, effective fire without the bulk of traditional .308 rifles. This segment sets up the transition to a field demonstration with Clint from Classic Firearms, Jason, and Kevin, where they will put both .300 Blackout and 8.6 Blackout through a suppressed sound comparison on the range.
On the range, the team lays out .300 Blackout and 8.6 Blackout cartridges side by side to visually highlight the difference in case and bullet size. They then conduct a suppressed sound test, alternating between supersonic and subsonic loads in both calibers. For 8.6 Blackout, they use a Fix rifle with a 12-inch barrel and a short Chop silencer, firing 210-grain supersonic and 300-grain subsonic rounds. The hosts comment on the tone of each shot and the presence of first-round pop. The 8.6 subsonic loads are notably quieter and softer in recoil than the supers, while still delivering substantial downrange authority. They also compare the sound signature of .300 Blackout subs, which are already well-regarded for suppression, to show how 8.6 Blackout maintains excellent suppression despite launching much heavier bullets. This segment underscores that 8.6 Blackout can be shot comfortably suppressed while offering a significant performance step up from .300 Blackout.
The focus turns to a Fix bolt-action rifle optimized for subsonic 8.6 Blackout hunting. This setup uses an 8-inch barrel with a 1:3 twist, a full-size silencer, folding stock, bipod, and a Leupold Mark 5 3.6–18x scope. Despite the capability, the entire package weighs around 5 pounds and remains extremely compact. The short, stiff barrel and aggressive twist rate help maintain tight dispersion and accuracy with slow, heavy subsonic bullets. The hosts state that this configuration is capable of ethical shots on game out to about 300 meters, which is remarkable for a subsonic platform. They reference successful hunts on large animals, including Cape buffalo, using both supersonic and subsonic 8.6 Blackout loads. Compared to traditional dangerous-game rifles that often weigh 10 pounds or more, the Fix offers magnum-like terminal performance in a much lighter, easier-to-carry package, especially when combined with the benefits of reduced recoil and suppressed shooting.
The conversation returns to the Boom Box platform and its caliber flexibility. Like .300 Blackout, 8.6 Blackout is designed for simple barrel-only swaps on SR25-pattern rifles, without changing bolts or magazines. Kevin contrasts this with cartridges like 6 ARC and 6.8 SPC, which require modified magazines and different bolt faces, often compromising reliability in gas guns. In the Boom Box, 6 Creedmoor is offered as a higher-performance alternative to 6 ARC, delivering more energy and velocity while retaining full SR25 magazine capacity and a standard bolt. The hosts then discuss suppressor options for 8.6 caliber builds, including short cans like the Short Chop and longer options like the Pork Chop. They touch on SD-style setups where the suppressor is tucked under the handguard, acknowledging the strong aesthetic appeal but noting the higher cost and complexity. An MP5 SD is compared to a conventional MP5 with a quality muzzle-mounted silencer, with the latter often outperforming the integrally suppressed design despite looking less exotic.
Kevin describes Q’s internal culture as one that demands top-tier engineering and genuine belief in their products. The Boom Box name came from a whiteboard vote led by engineer Nick Schaefer, reflecting the company’s preference for fun, memorable nicknames over sterile acronyms. They reference how the Honey Badger name unexpectedly became a brand through Call of Duty, and argue that strong engineering and real-world performance give them the freedom to call products whatever they want, likening it to earning character through winning in Bull Durham. The discussion then shifts to rifle setup philosophy. They showcase a 12-inch barreled rifle that remains extremely light, well-balanced, and easy to carry even with a suppressor attached, with very mild recoil. The hosts advocate for minimalist configurations—just a light, an optic, and a simple sling—rather than over-accessorizing. They recommend separating day and night roles, such as running a dedicated thermal on one rifle and a daytime red dot or low-powered variable optic like a 1–10x on another.
The speakers acknowledge how difficult it is to convey the shooting experience of the 8.6 Blackout platform on camera. Many shooters are initially skeptical, assuming a lightweight .308-based rifle will be harsh or unwieldy, but hands-on use tends to convert them quickly. They describe a range session shooting at around 350 yards with both super and subsonic 8.6 Blackout loads, all suppressed. The group shot all day without hearing protection, underscoring the effectiveness of the suppressor on a short-barreled setup. The Q rifle package is compared to alternatives like the SIG MCX and typical .300 Blackout uppers. Despite being smaller and lighter, the 8.6 Blackout Boom Box offers greater capability, especially in terms of energy on target and effective range. The hosts emphasize that the rifle’s compactness, low recoil, and quiet report make it uniquely suited for roles where traditional AR-10 or SR25 platforms would be too heavy or cumbersome.
The discussion turns to dangerous-game hunting, focusing on Cape buffalo. The speakers describe buffalo as extremely tough and aggressive animals that can overpower large predators like lions and tigers, underscoring the seriousness of taking them on. Kevin recounts personal hunting experiences using 8.6 Blackout on Cape buffalo at close range, with both supersonic and subsonic loads. He compares the cartridge’s performance favorably to traditional heavy hitters like the 500 Nitro, highlighting deep penetration and reliable results on target. Fast twist rates, improved dispersion, reduced drop, and heavy bullets allow 8.6 Blackout to deliver magnum-like performance from a rifle weighing around 5 pounds instead of the typical 10-pound dangerous-game gun. This weight reduction makes the rifle far easier to carry and handle in the field. The segment closes by emphasizing Q’s focus on meaningful innovation and weight reduction rather than producing generic AR-10/SR25 designs, and notes that the new 8.6 Blackout rifle is nearing release, with .308, 6.5, and 6 Creedmoor variants projected about a year out.
In the closing segment, the host invites viewers to leave questions in the comments, noting that Kevin occasionally responds there to help educate shooters. The two exchange mutual appreciation, emphasizing respect and enjoyment of working together despite the host’s joking style. Kevin explains that Q’s products are not intended for everyone; they are built for shooters who value cutting-edge engineering, lightweight design, and high performance, and are willing to pay for that level of refinement. He acknowledges that there are many good alternatives on the market, mentioning Ruger as an example of a company that also makes solid guns for different buyers. The message is that those who want what Q offers—such as 8.6 Blackout capability, ultra-light SR25-pattern rifles, and advanced suppressor setups—can choose their products, while others can select more conventional options that better match their needs and budgets.
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