Episode 298 - Magco Arms EDS-30L Testing and CAT ST and AKB Technical Discussion (25-MAR-2026)

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Episode 298 - Magco Arms EDS-30L Testing and CAT ST and AKB Technical Discussion (25-MAR-2026)

Today’s Topics:

  1. Sound Signature Review 6.217 – The CAT ST on the 14.5-in M4 midlength gas AR-15. New CAT rifle silencer using their SBX technology; a little different than SURGE BYPASS. Extremely high performance. Let’s dive in technically.

    a. Intro and recap (00:09:54)

    b. CAT ST overview (00:15:13)

    c. CAT ST silencer design (00:23:52)

    d. Hazard Map Brief 8.1.14 (00:36:20)

    e. System performance (00:45:43)

    f. Overall thoughts (01:09:44)

  2. Sound Signature Review 6.218 – The CAT AKB on the 14.5-in SR-25. Another new CAT rifle silencer – this time a universal 30 caliber model. Different and smaller than their ODB. Let’s examine the technical performance on this challenging test host.

    a. Intro and recap (01:15:07)

    b. CAT AKB overview (01:18:06)

    c. CAT AKB silencer design (01:22:06)

    d. Hazard Map Brief 8.1.15 (01:27:53)

    e. System performance (01:31:50)

    f. Overall thoughts (01:37:37)

  3. Sound Signature Review 6.219 – The Magco Arms EDS-30L on 20-in 308 bolt action. Is there still room for newcomers in the 308 bolt gun field? I mean, I think you may be surprised. Optimized traditionally machined silencers like this, with this type of performance, are the backbone of silencer history. So, let’s check out this new entry and see what it can do in an 8-inch length! (01:39:59)

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Episode 297 - CAT ST and AKB Testing Intro and Rampart Carson 30 SR-25 Technical Discussion (18-MAR-2026)

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Episode 297 - CAT ST and AKB Testing Intro and Rampart Carson 30 SR-25 Technical Discussion (18-MAR-2026)

Today’s Topics:

  1. Sound Signature Review 6.216 – The Rampart Range Suppression Carson 30 on the 14.5-in SR-25. Folks are coming forward to try their hand at taming short barrel 7.62 NATO semiauto. How is it progressing? Not too shabby. Infinity core derivative technical discussion of last week’s report.

    a. Intro and recap (00:07:20)

    b. Carson 30 overview (00:10:10)

    c. Carson 30 silencer design (00:16:04)

    d. Hazard Map Brief 8.1.13 (00:21:54)

    e. System performance (00:33:48)

    f. Overall thoughts (00:44:42)

  2. Sound Signature Review 6.217 – The CAT ST on the 14.5-in M4 midlength gas AR-15. New CAT rifle silencer using their SBX technology; a little different than SURGE BYPASS. How does their universal 5.56 silencer stack up? Well, it’s not normal, apparently. Intro discussion for today’s report. (00:47:55)

  3. Sound Signature Review 6.218 – The CAT AKB on the 14.5-in SR-25. Another new CAT rifle silencer – this time a universal 30 caliber model. Different and smaller than their ODB. This one seems to be at home on everything from subsonic things to a battle rifles… we’ll tackle the intro for that report today as well! (01:01:08)

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Episode 296 - Rampart Range Suppression Carson 30 SR-25 Testing and Inert Haze Dreyse 30 Technical Discussion (11-MAR-2026)

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Episode 296 - Rampart Range Suppression Carson 30 SR-25 Testing and Inert Haze Dreyse 30 Technical Discussion (11-MAR-2026)

Today’s Topics:

  1. Sound Signature Review 6.215 – The Inert Haze Dreyse 30 on 20-in .308 bolt action. Do high performance silencers have to be long and heavy? Not always! Check out this new offering from the folks who brought you the Ti-P 9mm pistol silencer. Technical discussion.

    a. Intro and recap (00:09:23)

    b. Dreyse 30 physical overview (00:11:21)

    c. Dreyse 30 silencer design (00:19:12)

    d. Hazard Map Brief 8.1.12 (00:25:16)

    e. System performance (00:34:06)

    f. Overall thoughts (00:45:47)

  2. Sound Signature Review 6.216 – The Rampart Range Suppression Carson 30 on the 14.5-in SR-25. Folks are coming forward to try their hand at taming short barrel 7.62 NATO semiauto. How is it progressing? Not too shabby. Check out this new Infinity core derivative in today’s report. Intro discussion. (00:49:58)

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Episode 295 - Inert Haze Dreyse 30 .308 Testing Intro and HK MK23 Silencer Questions (04-MAR-2026)

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Episode 295 - Inert Haze Dreyse 30 .308 Testing Intro and HK MK23 Silencer Questions (04-MAR-2026)

Today’s Topics:

  1. Sound Signature Review 6.215 – The Inert Haze Dreyse 30 on 20-in .308 bolt action. Do high performance silencers have to be long and heavy? Not always! Check out this new offering from the folks who brought you the Ti-P 9mm pistol silencer. It is definitely fitting into the very competitive space in the upper Rankings on .308. Introduction to this report and Silencer Hazard Map Brief 8.1.12. (00:05:58)

  2. Some great user feedback and questions about the HK MK23 KAC and B&T study (6.214). We’ll hit some of that feedback today in some public service announcements. (00:16:18)

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Episode 294 - KAC vs. B&T HK MK23 and USP45 Silencer Testing Technical Talk (25-FEB-2026)

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Episode 294 - KAC vs. B&T HK MK23 and USP45 Silencer Testing Technical Talk (25-FEB-2026)

Today’s Topic:

  1. Sound Signature Review 6.214 – Suppressed .45 ACP Historical Case Study: HK MK23 and USP45 Silencers - KAC vs. B&T. Many of us have waited decades for this data and analysis. This PEW Science internal research program consists of six tests, suppressed and unsuppressed. The U.S. SOCOM MK23 Offensive Handgun (OHG) program high fidelity test report technical discussion. (00:07:16)

    a. Intro and recap (00:09:20)

    b. KAC MOD.MK23/USP and B&T Impulse-IIA SD Mk23 physical overview (00:30:36)

    c. The KAC design and what they gave to B&T (00:41:34)

    d. Pistol silencer inertial decouplers, boosters, and you (01:04:38)

    e. Hazard Map Brief 8.1.11 (01:29:42)

    f. MK23 system performance (01:36:53)

    g. USP45 Tactical system performance (02:00:44)

    h. Overall thoughts (02:06:44)

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Episode 293 - HK MK23 and USP45 Suppression: KAC vs. B&T and OCL OCM Technical Talk (18-FEB-2026)

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Episode 293 - HK MK23 and USP45 Suppression: KAC vs. B&T and OCL OCM Technical Talk (18-FEB-2026)

Today’s Topics:

  1. Sound Signature Review 6.213 – Otter Creek Labs OCM5 and OCM6 reflex silencers on the 14.5-in M4A1RIII. This is the technical discussion to accompany last week’s report showcasing these exterior-clones of the classic OPS INC 12th model.

    a. Intro and recap (00:08:49)

    b. OCM5 and OCM6 physical overview (00:12:46)

    c. OCM5 and OCM6 silencer design (00:18:22)

    d. Hazard Map Brief 8.1.10 (00:29:12)

    e. OCM family system performance (00:33:05)

    f. Overall thoughts (00:52:25)

  2. Sound Signature Review 6.214 – Suppressed .45 ACP Historical Case Study: HK MK23 and USP45 Silencers - KAC vs. B&T. It’s finally here! Many of us have waited decades for this data and analysis. This PEW Science internal research program consists of six tests, suppressed and unsuppressed. The U.S. SOCOM MK23 Offensive Handgun (OHG) program high fidelity test report is now in the Silencer Sound Standard! (00:56:20)

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Episode 221 - PEW Science KAC 556 QDC/CRS-PRT, QDC/MCQ-PRT Technical Discussion (24-JUL-2024)

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Episode 221 - PEW Science KAC 556 QDC/CRS-PRT, QDC/MCQ-PRT Technical Discussion (24-JUL-2024)

Today’s Topics:

  1. Sound Signature Review 6.156 – KAC 556 QDC/CRS-PRT and 556-QDC/MCQ-PRT System Optimization: SR-15 Carbine MOD 2, CQB MOD 2, M4A1RIII, and MK18 5.56x45mm Short Barrel Automatic AR15 Rifles. Introducing the PEW Science KAC 556 PRT System Optimization Tool!

    16 test program. Let’s start off talking about the full size QDC/CRS-PRT first. Technical discussion. (00:06:05)

    Interactive tool use for Topic 1 (00:38:25)

  2. The other half of the PEW Science KAC 556 PRT study – the mini corn. Let’s talk about the QDC/MCQ-PRT. Small corn – does it give small performance? Yes and no. Technical discussion regarding this silencer. (00:51:30)

    Interactive tool use for Topic 2 (01:09:20)

  3. Overall comparisons. How does the KAC QDC PRT series stack up to the competition? (01:13:29)

Sponsored by - High End Armament Technology, Top Gun Range Houston, Legion Athletics, and the PEW Science Laboratory!

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Episode 220 - PEW Science KAC 556 PRT System Optimization Tool Intro (17-JUL-2024)

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Episode 220 - PEW Science KAC 556 PRT System Optimization Tool Intro (17-JUL-2024)

Today’s Topics:

  1. Sound Signature Review 6.156 – KAC 556 QDC/CRS-PRT and 556-QDC/MCQ-PRT System Optimization: SR-15 Carbine MOD 2, CQB MOD 2, M4A1RIII, and MK18 5.56x45mm Short Barrel Automatic AR15 Rifles. Introducing the PEW Science KAC 556 PRT System Optimization Tool!

    In addition to the first fully-featured public interactive suppressed system optimization tool, this publication includes the following data, analysis, and content for your consumption, including testing with:

    1. Both full size and mini KAC 556 QDC silencers.

    2. Two muzzle devices (3-prong and MAMS).

    3. Four hosts (SR-15 Carbine MOD 2, CQB MOD 2, M4A1RIII, and MK18) – 16 tests, total.

    This one took a village! Thank you for your support! This is the introduction to this PEW Science Laboratory internal research program publication. (00:09:50)

Sponsored by - High End Armament Technology, Top Gun Range Houston, Legion Athletics, and the PEW Science Laboratory!

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Episode 218 - FOR Systems Monarch 7.62 Intro and KAC PRT System Program Update (03-JUL-2024)

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Episode 218 - FOR Systems Monarch 7.62 Intro and KAC PRT System Program Update (03-JUL-2024)

Today’s Topics:

  1. Sound Signature Review 6.155 – The FOR Systems Monarch 7.62 on .308 bolt-action. Boy howdy…. DMLS continues to be interesting. Inconel? Yes. Low(er) backpressure? Yes. Performance? Apparently so! Let’s check out this very interesting silencer in this introductory discussion to the article published today! (00:08:14)

  2. Knee deep in the corn? Quite literally. KAC everywhere… and it’s not normal. We have been testing the daylights out of these PRT silencers and it’s been…… interesting. Just about every combination has been examined. The enthusiasts will certainly benefit! This is PEW Science funded internal research. (00:24:06)

Sponsored by - High End Armament Technology, Top Gun Range Houston, Legion Athletics, and the PEW Science Laboratory!

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Episode 190 - SilencerCo Velos LBP Test, KAC 556 QDC-CRS/PRT, QDC/MCQ-PRT, Mod 2 Upper (06-DEC-2023)

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Episode 190 - SilencerCo Velos LBP Test, KAC 556 QDC-CRS/PRT, QDC/MCQ-PRT, Mod 2 Upper (06-DEC-2023)

Today’s Topics:

  1. Sound Signature Review 6.134 – SilencerCo Velos LBP on the 5.56 MK18. This is the technical discussion for this long-awaited white paper, published last week! Again, big thanks to PEW Science members for making research like this possible. (00:08:53)

  2. Sometimes it takes a village – KAC silencer system testing is in the works, with contributions from several folks! KAC 556 QDC-CRS/PRT, 556 QDC/MCQ-PRT, and in addition to MK18 and M4A1 midlength 14.5, maybe we do SR-15 Carbine MOD 2 14.5 and SR-15 CQB MOD 2 uppers for members. Oh, and MAMS and 3-Prong. Thanks to several PEW Science Members for making something like this possible. (00:59:51)

Sponsored by - High End Armament Technology, Top Gun Range Houston, Legion Athletics, and the PEW Science Laboratory!

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Podcast Erratum:

We have been informed, by the PEW Science member who loaned us the Velos, that it does not, in fact, also come with the direct thread mount. They had included both mounts in the box in case we wanted to test it with both. We chose the direct thread mount for testing based on the logic of having used the same type of mount with the Saker 556 previously, along with some gas dynamics factors, as discussed on the podcast. Sorry folks - didn't realize the direct thread mount was not included!

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Episode 169 - Listener Questions, HK MK23, USP, KAC, and SCAR with FLOW 762 (06-JUL-2023)

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Episode 169 - Listener Questions, HK MK23, USP, KAC, and SCAR with FLOW 762 (06-JUL-2023)

Today’s Topics:

  1. Listener Questions are back! Let’s continue answering some from the 5th Solicitation. (00:10:15)

  2. The USP 45 Tactical is a MK23 compact. And as such, it is appropriate for summer beach carry. The quest for the coolest gats - suppressed pistols, and you. (00:58:49)

  3. SCAR Project mini-update: HUXWRX FLOW 762 Ti with the KNS discarder. (01:15:28)

Sponsored by - High End Armament Technology, Top Gun Range Houston, and Legion Athletics!

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Episode 168 - Aero Precision Lahar-30 on the 5.56 MK18 (28-JUN-2023)

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Episode 168 - Aero Precision Lahar-30 on the 5.56 MK18 (28-JUN-2023)

Today’s Topics:

  1. Signature Review 6.116 – the Aero Precision Lahar-30 on the 5.56 MK18 SBR! You already saw bolt action .308 data for the larger Lahar-30L in article 6.112. Now, the mid-size version of the Lahar series is evaluated on 5.56! Mid-size, but short, at 6 inches long. How does it perform? This is the technical discussion of the article published last week. (00:11:26)

  2. Summer time testing is in full gear! A lot of great manufacturers making neat products – a lot of neat data being gathered, and what a great time to be a silencer consumer! Whether you are a weekend warrior coyote hunter, a CQB trainee, a long-range tactical enthusiast, or even just a backyard plinker – there are most likely great things available for you! Thanks for continuing to trust PEW Science to characterize all this stuff – it’s a great joy! (00:56:26)

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Episode 165 - HUXWRX FLOW 762 Ti - Part 2 - 5.56 MK18 SBR (07-JUN-2023)

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Episode 165 - HUXWRX FLOW 762 Ti - Part 2 - 5.56 MK18 SBR (07-JUN-2023)

Today’s Topics:

  1. Signature Review 6.114 – the HUXWRX FLOW 762 Ti on the 5.56 MK18 SBR! This is the technical discussion of the publication that was released last Monday, Memorial Day! This is a companion episode to Episode 164 with the discussion of SSS.6.113 – FLOW 762 Ti .308 bolt action performance. (00:18:59)

  2. June is kicking off. There’s more data to publish, tons more to test, and it’s going to be super fun! We will be taking a look at the Surefire SOCOM556-MINI2 – an extremely prolific and popular silencer on loan courtesy of gracious benefactors. KAC 556QDC/CRS-PRT action? Oh man, that too. PEW Science members gonna get some great data! (01:07:43)

Sponsored by - High End Armament Technology, Top Gun Range Houston, and Legion Athletics! - use code pewscience for 20% off your first order at Legion and double points!

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Episode 152 - KAC 5.56 QDC on the MK18 and 14.5 Midlength Progress! (01-MAR-2023)

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Episode 152 - KAC 5.56 QDC on the MK18 and 14.5 Midlength Progress! (01-MAR-2023)

Today’s Topics:

  1. Sound Signature Review 6.104 – the KAC 5.56 QDC on the 5.56 MK18. This is the technical discussion of the article published on Sunday! (00:07:20)

  2. The 14.5-inch midlength gas AR test uppers have been purchased. Now we wait! What, if any, predictions do you guys have for performance changes from the 10.3-inch MK18? (00:56:24)

  3. Folks seem to be using the data appropriately! Folks choosing silencers for their guns – sometimes they aren’t looking for the quietest stuff. But, they do know what their use cases are – that’s how looking at a silencer’s features, along with the Suppression Rating, can help! Big thanks to the members who make it all possible. (01:01:52)

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Episode 147 - CGS SCI-SIX Program Technical Discussion, KAC MK23, and Indoor Testing (25-JAN-2023)

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Episode 147 - CGS SCI-SIX Program Technical Discussion, KAC MK23, and Indoor Testing (25-JAN-2023)

Today’s Topics:

  1. Sound Signature Review 6.101 – The CGS SCI-SIX on the 5.56 MK18. This the technical discussion of the SCI-SIX Program. (00:07:08)

  2. The KAC MOD.MK23/USP silencer. Been shooting it on the MK23, been liking it, can’t wait to test it! Is .45 ACP better than subsonic 300 BLK? I mean, maybe. (01:36:52)

  3. New PEW Science testing - the effort continues. As we start to explore more use cases, testing may evolve! What are some of your most desired setups? Most desired locations? How will you use YOUR silencer? (01:50:09)

Sponsored by - High End Armament Technology and Top Gun Range Houston!

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Episode 145 - Dead Air Nomad-30 5.56 Technical Discussion and the KAC MK23 Experience (11-JAN-2023)

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Episode 145 - Dead Air Nomad-30 5.56 Technical Discussion and the KAC MK23 Experience (11-JAN-2023)

Today’s Topics:

  1. Sound Signature Review 6.100 – The Dead Air Nomad-30 (1st Gen) on the 5.56 MK18! This is the technical discussion. (00:05:36)

  2. The KAC MK23 silencer on the HK MK23 Offensive Combat Handgun. Good golly, miss molly. Is it special? Yeah, you betcha. First impressions. (00:46:31)

  3. PEW Science and podcast merch coming soon? Maybe not soon, but one podcast listener did get some for Christmas. He’s now a PEW Science member – big shout out to this gentleman and his wife, who reached out to try to surprise him. We made a Christmas miracle happen! (01:02:26)

Sponsored by - High End Armament Technology!

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Episode 118 - Family and the KAC QDSS-NT4 on the 5.56 MK18 (22-JUN-2022)

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Episode 118 - Family and the KAC QDSS-NT4 on the 5.56 MK18 (22-JUN-2022)

Today’s Topics:

  1. Special note for a listener – and his dad. Blake, what doesn’t kill you makes your stronger. (00:10:03)

  2. Sound Signature Review 6.78 – KAC QDSS-NT4 on the 5.56 MK18. Technical discussion! (00:19:28)

  3. Received some pretty big contributions recently. I am very honored, and the PEW Science effort is being fostered by generous folks and all the members and clients. I humbly salute you, and hope you continue to find benefit from this work. (01:15:57)

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Episode 113 - 5.56 MK18 Testing, KAC QDC, and More Data! (18-May-2022)

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Episode 113 - 5.56 MK18 Testing, KAC QDC, and More Data! (18-May-2022)

Today’s Topics:

  1. Recent Testing. Adding to the pile, and the huge backlog. 5.56 stuff? Oh yeah. KAC? Yeah, that too. (00:06:58)

  2. Listener questions – why not?! Let’s answer some riddles from you – the audience. (00:25:46)

  3. New Sound Signature Review this week? Boy howdy is there one coming, and you need to buckle up. Strap in tightly, sir or ma’am. (01:02:42)

  4. The effort grows, and as it grows, PEW Science members continue to be the backbone. Thank you for your support; it is unwavering, powerful, and thoughtful. (01:05:26)

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Episode 112 - Silencer Central Banish 30, the MP5 and MP5K, and KAC (11-May-2022)

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Episode 112 - Silencer Central Banish 30, the MP5 and MP5K, and KAC (11-May-2022)

Today’s Topics:

  1. Sound Signature Review 6.74 – Silencer Central Banish 30 on a supersonic 308 bolt action! Technical discussion. (00:05:29)

  2. The MP5 is important. Let’s talk about why you need to understand the difference between the full size and the MP5K (SP5 vs. SP5K-PDW). (00:46:13)

  3. Upcoming testing? Yes. Excitement? Always. Stay tuned. KAC? That too. (00:51:31)

  4. Thank you for your support. True grassroots support is rare, and PEW Science members knock it out of the park. Your contributions to the effort are changing the industry and the state of practice. (00:55:21)

Ammo from True Shot: Click Here! (use code pewscience for $20 off the A-Zone program)

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Episode 106 - The Silencer Sound Standard Anniversary and the Banish 30 Gold (23-MAR-2022)

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Episode 106 - The Silencer Sound Standard Anniversary and the Banish 30 Gold (23-MAR-2022)

Today’s Topics:

  1. The Silencer Sound Standard turns two this week! Happy Anniversary to all of you – your support made the new industry standard a reality! (00:10:34)

  2. Sound Signature Review 6.69 – Silencer Central Banish 30 Gold on supersonic .308 – technical discussion. (00:17:28)

  3. Sound Signature Review 6.70 – Silencer Central Banish 30 Gold on subsonic 300 BLK – technical discussion. (00:51:13)

  4. Do you have a moment to speak about the Surefire OBC and short dwell time for silencer use? 11.5 mid gang, please gather. Also, KAC. Maybe. They are aware of the effort. So is Rooftop Defense. What in tarnation? (01:15:30)

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