Irregular Design Group (IDG) Hesychia 556UK-HUB [BLK] Suppressor

The 556UK follows the same system logic as the larger cans, but in a package where internal volume is tighter and every geometric decision matters more. Back-pressure is managed at the beginning, not treated as a downstream cleanup problem. The blast chamber, early intake geometry, and first redirections are where the real leverage lives. The 556UK-H is the HUB version of the Hesychia 556UK. It keeps the same core design logic in a cross-compatible format for shooters who need a 1.375-24 TPI HUB interface instead of the native Hesion Bow lock. That flexibility comes with known packaging tradeoffs. In the native system, space around and between locking features can be used for additional gas pockets and disruption. In a HUB suppressor, a larger threaded region consumes space that cannot be used for gas pockets, disruption features, or flow-shaping geometry. The 556UK-H is still an ultra compact suppressor, but its internal volume and leverage differ from the native 556UK because of that packaging change. This model features an all-black color pattern and does not include a HUB adapter. *Sound reduction ratings are based on average range of 160-166 dB and may vary depending on firearm configuration.*