Episode 302 - Otter Creek Labs Universe-36 Multi-Caliber Testing & JK PRO-KOR 556K Tech (22-APR-2026)

Episode 302 - Otter Creek Labs Universe-36 Multi-Caliber Testing & JK PRO-KOR 556K Tech (22-APR-2026)

Today’s Topics:

  1. Sound Signature Review 6.222 – the JK Armament PRO-KOR 556K on the 10.3-in 5.56 MK18. The last MK18 data we published was back in December. How does this new advanced entry from JK Armament fair compared to the competition? The Top 5 and Bottom 5 performers on the MK18 are showcased in this report. Technical discussion. (00:06:54)

    a. Intro and recap (00:06:21)

    b. PRO-KOR 556K overview (00:11:14)

    c. PRO-KOR 556K silencer design (00:22:44)

    d. Hazard Map Brief 8.1.19 (00:43:21)

    e. System performance (00:49:23)

    f. Overall thoughts (01:11:11)

  2. Sound Signature Review 6.223 – the Otter Creek Labs Universe-36 on the 10.3-in 5.56 MK18, 20-in .308 bolt-action, and 9mm HK MP5. Multi-caliber test report. Do multi-caliber silencers perform well on several different weapons? Sometimes yes, sometimes no. You can put this silencer on anything from 9mm to .338 Lapua Magnum. Introductory discussion for today’s report. (01:14:20)

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