Tyler Wynn
The CGS Helios QD is a rifle silencer designed for 5.56mm rifles and carbines. It is a suppressor capable of handling almost any calibre and is full-auto rated. The CGS Helios QD comes with a sealed front cap for maximum sound reduction and its patented Varying Core Diameter technology allows for peak sound reduction for its size. When tested side by side with the SIG SRD 556, the CGS Helios QD sounded better to those present. The CGS Helios QD is also available with a taper mount.
| Characteristics | Values |
|---|---|
| Suppressor Type | CGS Helios QD |
| Caliber | 5.56mm |
| Performance | Capable of handling multiple calibers, full-auto rated, no barrel restrictions |
| Sound Reduction | Peak sound reduction for its size, eliminates flash signature |
| Sound Rating | 23.2 with vented end-cap |
| Technology | Varying Core Diameter, 3D printed Inconel |
| Mount | Any mount can be used |
| Accessories | SKB hard case, thread pitch adapters, muzzle brake adapter, end cap |
| Weight | Lightweight |
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What You'll Learn
The CGS Helios QD is a rifle silencer/suppressor
The CGS Helios QD has been described as sounding "phenomenal" across a wide range of calibers, both supersonic and subsonic. It has been compared to other suppressors such as the SIG SRD 556, with testers noting that the Helios sounded better. The suppressor also reduces recoil and is lightweight, making it a good option for hunting.
The CGS Helios QD is part of an ongoing research study by PEW Science, which is showcasing the performance of the suppressor in conjunction with the MK18. The study includes sound signature pressure histories and sound signatures of shots in the regions of peak sound pressure.
The CGS Helios QD Suppressor Kit includes the suppressor, common thread pitch adapters, an adapter for industry-common muzzle brakes, a normal end cap, and a sealed front cap for maximum sound reduction. The kit also comes with a nice transport case that can hold the suppressor and its accessories.
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It is designed for 5.56mm rifles and carbines
The CGS Helios QD is a rifle silencer designed for 5.56mm rifles and carbines. It is constructed from durable 718 Inconel and 17-4 stainless steel. The Helios QD is a short, quick-attach suppressor with no barrel length restrictions and a full-auto rating. It is a versatile silencer, with a .36 bore diameter that significantly reduces back pressure and muzzle flash. This allows the suppressor to be used with multiple calibers, including 7.62 caliber projectiles.
The patented "Varying Core Diameter" technology used in the Helios QD is unique to CGS Suppressors and provides peak sound reduction for its size. It also eliminates the flash signature and minimizes the point of impact shift. The taper interface between the muzzle device and the signature suppressor prevents carbon lock.
The Helios QD comes as a kit with a range of accessories, including interchangeable sealed end caps and adapter rings. It offers a high level of sound suppression and is considered a comprehensive silencer kit. The price of the Helios QD is in the top bracket for its class, ranging from $1400 to $1500.
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It has a Varying Core Diameter for sound reduction
The CGS HELIOS QD Ti is a rifle silencer designed for 5.56mm rifles and carbines. It features a patented "Varying Core Diameter" technology, which is unique to CGS Suppressors. This innovative design enables peak sound reduction for its size, eliminating the flash signature and minimising the point of impact shift.
The HELIOS QD Ti system's versatility is enhanced by its generous .36 bore, which significantly reduces back pressure and muzzle flash. This feature also enables the suppressor to accommodate multiple calibers. The suppressor is constructed with DMLS Grade V Titanium, ensuring maximum strength, lightweight performance, and exceptional durability.
The HELIOS QD Ti comes with interchangeable rear caps in different thread sizes, along with an adapter ring. This adaptability allows for compatibility with various industry QD mounting solutions. Additionally, it offers interchangeable front caps, including a sealed front cap for maximum sound reduction and a ported front cap to address blowback issues for left-handed shooters or systems prone to over-gassing.
The HELIOS QD Ti is full-auto rated with a minimum barrel length restriction of 10" for 5.56mm rifles. It can handle larger calibers, including 300 Norma Magnum. The system is backed by a lifetime warranty, demonstrating CGS's confidence in its durability and performance.
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The QD ring increases the blast chamber size
The CGS Helios QD is a centre-fire rifle silencer designed for semi-automatic and automatic 5.56 mm host weapons. It has a 30-calibre bore and can suppress many cartridges, including .300 Remington Ultra Magnum. The QD ring increases the blast chamber size, allowing for a greater volume of gas to be slowed and redirected by the baffle stack, which is borrowed from the Hyperion suppressor. This results in an effective reduction of sound pressure, as demonstrated in the pressure histories for all five shots with the Helios QD suppressor.
The QD ring's contribution to the blast chamber size is a crucial factor in the overall performance of the suppressor. The enlarged chamber provides more space for the gases to expand, which is essential for effective sound suppression. This is because the volume of the chamber directly impacts the pressure and flow of gases, which are key factors in sound propagation.
The unique baffle stack design within the Helios QD takes advantage of the lower-pressure air caused by turbulence. This innovative design, combined with the increased blast chamber size, results in a suppressor that delivers exceptional sound reduction, especially given its compact size.
The Helios QD's solid end-cap configuration achieved a Suppression Rating of 44.5 in testing, while the vented end-cap configuration yielded a rating of 23.2. The vented end-cap effectively eliminates backpressure but results in a louder sound signature. CGS is developing new end caps with smaller holes to strike a balance between lowering back pressure and enhancing suppression.
The QD ring's impact on the blast chamber size is a critical aspect of the suppressor's design, contributing to its ability to effectively reduce sound pressure and provide a pleasant and deep tone.
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The Rearden Atlas adapter may improve sound suppression
The CGS Helios QD is a suppressor that can be used on a range of weapons, including the MK18 and Savage 308. It is constructed from 6AL4V Grade 5 Titanium and has been tested for its sound suppression capabilities. The results of these tests indicate that the Helios QD achieves a notable suppression rating of 23.2 when paired with a vented end-cap.
While the Helios QD is a capable suppressor, some users may seek to enhance its performance or compatibility with different firearm setups. This is where the Rearden Atlas adapter comes in. The Rearden Atlas is a mount interface adapter that enables the use of various suppressors, including those with inside diameter threading Bravo 1.375-24. It is compatible with a range of muzzle devices, including those from Rearden and other manufacturers.
By utilising the Rearden Atlas adapter, users can potentially improve the sound suppression capabilities of their setup. The adapter allows for the use of different suppressors, each with its own unique sound suppression characteristics. This flexibility enables users to experiment with different suppressors to find the optimal configuration for their specific firearm and usage scenario.
Additionally, the Rearden Atlas adapter provides users with the ability to quickly change suppressors while at the range. This adaptability can be advantageous for those who own multiple firearms with different threading or calibre requirements. The ability to swap suppressors efficiently can further enhance the sound suppression performance of the overall setup.
While the Rearden Atlas adapter offers enhanced flexibility and compatibility, it is important to follow the manufacturer's instructions for proper installation and use. This includes torquing the adapter to the recommended specifications and being cautious when using adhesives like Rocksett, as they can make removal and cleaning more challenging. With proper care and utilisation, the Rearden Atlas adapter can indeed improve sound suppression by enabling users to optimise their suppressor choices and configurations.
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Frequently asked questions
The CGS Helios QD is a rifle silencer designed for 5.56mm rifles and carbines. It is full-auto rated and has no barrel restrictions.
The CGS Helios QD uses patented "Varying Core Diameter" technology, which allows for peak sound reduction for its size. It also eliminates the flash signature and minimises point-of-impact shift.
The CGS Helios QD comes with a hard case, two threaded rear caps, an adapter ring, and interchangeable front caps, including a sealed front cap for maximum sound reduction.
The CGS Helios QD has been described as sounding better than the SIG SRD 556 suppressor. It is also lighter and offers better suppression than the DDT Enticer and Otter Creek Hydrogen suppressors.
Yes, you can use a brake with the CGS Helios QD. Some users have reported that it sounds better with a brake than with direct threading.
