![]() Despite this increase, the overall suppression of both FRP and subsequent shots, in this impulse amplitude regime, is significant. The deviation of ancillary early-time combustion behavior during FRP is highlighted in the impulse regime (Fig 3), in which the Hyperion reaches peak amplitude at the same time as subsequent shots, albeit with approximately 42% more peak impulse, on average. ![]() Although the FRP in the pressure regime does occur, the jetting amplitude from ancillary combustion is not significant (Fig 2b). The overpressure amplitude generated by the Hyperion at the muzzle on this platform is significantly suppressed (Fig 2a). The CGS Hyperion produces somewhat perceptible FRP to bystanders it is also discernable in both the pressure and impulse regimes (Figure 2 and Figure 3, respectively). Again, full and short timescales are shown. The real sound impulse (momentum transfer potential) histories from the same 5-shot test are shown in Figure 3. A zoomed-in timescale displays the region of peak sound pressure in Figure 2b, for the first three shots. The primary sound signature pressure histories for all 5 shots are shown in Figure 2a. This is in contrast to the subsonic signature generated by silencers with lower flow restriction (lower back pressure). In a similar fashion to the early time subsonic 300 BLK signature suppression with the SRD762Ti-QD and SOCOM300-SPS silencers, precursor flow (the pressure measured from compression and subsequent overpressure pulse through the air column in the gun barrel by the bullet prior to bullet exit) is significantly suppressed. Quantitative subsonic suppression performance comparisons are provided in Section 6.71.2 of this review. The Hyperion’s subsonic suppression performance is significant and atypical of many centerfire rifle silencers. The CGS Hyperion is quieter than all of the aforementioned silencers, in all flow regimes. The most notable differences in early time flow between the Hyperion and those silencers occur in both the delay of primary jetting after bullet exit, and the reduction of primary jetting amplitude. Both the SRD762Ti-QD and the Hyperion restrict more flow than the the Surefire SOCOM300-SPS (Review 6.57) and the Silencer Central Banish 30 Gold (Review 6.70). Of the published dataset, the early time flow characteristics of the CGS Hyperion on this weapon system are most similar to that of the Sig SRD762Ti-QD (Review 6.39). The back pressure generated by the CGS Hyperion is higher than that generated by the other silencers shown in the published subsonic 300 BLK flow regime by PEW Science, to date. The Hyperion can be obtained from Silencer Shop. The thread adapters are made of 17-4 stainless steel. The front endcap is interchangeable and also constructed of Grade 5 titanium. The Hyperion core is constructed of Direct Metal Laser Sintered (DMLS, or “3D Printed”) heat treated 6AL4V (Grade 5) titanium. ![]() The use of the adapters adds approximately 0.8 inches to the length of the silencer. The adapters may be used for barrels with diameters less than 0.725 inches or for host weapons with 1/2”-28tpi thread pitches. The silencer is available as a 5/8”-24tpi 25-degree tapered direct-thread model that may also be used with Hyperion Thread Adapters. It has a 1.75-inch diameter and is 9.5 inches in length. It is a 30 caliber centerfire rifle silencer, intended to suppress most cartridges with projectiles appropriately sized to travel through the bore, including 300 Norma Magnum. CGS Hyperion on a Q mini FIX 300 BLK with 8-in Barrel
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