Today’s Topic: 1. Sound Signature Review 6.202 – Zastava ZVUK on a 16.3-in Yugoslavian AK-pattern system. Another U.S. tribute to the venerable Soviet PBS silencer! You saw the Wolverine performance last time. How does an even more modern PBS homage perform? Does this particular implementation of PIP bring the performance? Introduction to today’s whitepaper. a. Intro and aesthetics (00:05:30) b. Technology and performance first look (00:11:41) c. Initial thoughts about the competition and how the AK suppression space will unfold (00:21:30) d. What to expect in this report (00:31:58) Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always! Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics: 1. Public Research Supplement 6.200 – Unsuppressed 7.62x39mm AK-Pattern Rifles as Silencer Test Hosts. Zastava ZPAPM70 (16.3-in barrel), Arsenal SAM7R (16.3-in barrel), and Arsenal SAM7C (12.6-in barrel). Technical discussion of this new host platform. (00:06:54) 2. Sound Signature Review 6.201 – Dead Air Wolverine on every AK. How does this U.S. tribute to the venerable Soviet PBS silencer system perform? How does AK action noise manifest? How much does it matter? Can the Wolverine suppress your AK to levels of a modern suppressed AR-15? Technical discussion of last week’s whitepaper. a. Intro (00:26:20) b. Physical overview (00:34:08) c. Silencer Design (00:42:53) d. System Performance (00:45:45)

Today’s Topics: 1. Sound Signature Review 6.199 – Wolfpack Armory Disruptor 556 on the 14.5-in M4. There are a lot of new silencers and new silencer companies entering the space, and we say – the more the merrier. How does this conventionally designed offering stack up in the performance pedigree? This is the combined intro and technical discussion for the report published on 06-SEP. (00:08:23) 2. Public Research Supplement 6.200 – Unsuppressed 7.62x39mm AK-Pattern Rifles as Silencer Test Hosts. Zastava ZPAPM70 (16.3-in barrel), Arsenal SAM7R (16.3-in barrel), and Arsenal SAM7C (12.6-in barrel). In Soviet Russia… silencer suppresses… you? Ha! Let’s take a look at this interesting and historic platform. And… how do we make it quieter?! (00:28:11) 3. Sound Signature Review 6.201 – Dead Air Wolverine on every AK. How does this U.S. tribute to the venerable Soviet PBS silencer system perform? How does AK action noise manifest? How much does it matter? Can the Wolverine suppress your AK to levels of a modern suppressed AR-15? All that, and more, in this intro to today’s multi-test research publication. (00:36:28) 4. SIG MCX Suppressor Compliant Handguard Heat Mitigation. Just a note that the effort has started. Work in progress. Check out the progress here. (00:45:33)

Today’s Topic: 1. Sound Signature Review 6.198 – Microtech Defense R2K9 on the HK P30L. This modular pistol silencers offers lengths that are a bit longer than typical, but produce an interesting performance opportunity for users interested in such a design. How does the optimized k-baffle technology in the R2K9 stack up with current high performers on the market? Technical discussion for the report published last week. (00:06:53) a. Intro (00:08:02) b. Physical overview (00:15:22) c. Silencer Design (00:37:49) d. System Performance (00:46:42)

Today’s Topics: 1. Sound Signature Review 6.198 – Microtech Defense R2K9 on the HK P30L. It’s been about 5 years or so, give or take, since this silencer hit the market. It’s about as old as PEW Science. Was it ahead of its time? Or was it simply a diamond in the rough that folks glossed over? Check out this interesting modular pistol silencer and the fully-featured accessory package in this Member Funded research – intro talk for today’s white paper. (00:08:14) 2. The SIG MCX, or “LVAW” and its variants. 6.75” Rattler LT recreational use continues. Really hammering the system with subs and supers. And, have some ideas for heat mitigation. Let’s continue the discussion we had last week. (00:28:06)

Today’s Topics: 1. Sound Signature Review 6.197 – Combat Application Technologies CAT KK on the 10.3 5.56 MK18. Small silencer with performance that was a little surprising. Hybrid design advanced silencers continue to push the envelope. Technical discussion for the whitepaper published last week. a. Intro and physical characteristics. (00:08:26) b. Design, system performance, and mount considerations. (00:17:11) c. Performance extrapolation. Possible? (00:45:31) 2. The SIG MCX, or “LVAW” and its variants. 6.75” Rattler LT recreational use has been underway. Some interesting findings to share from a recent range outing. Approximately 1000 rounds of various ammo brands, subs and supers, fired from the system with the SIG SD handguard. Practical? Absolutely not, if you shoot a lot. Here are some thoughts. (00:54:08)

Today’s Topics: 1. Sound Signature Review 6.196 – Otter Creek Labs Infinity on the 14.5-in mid-length gas M4A1. You’ve seen this durable, versatile silencer on everything from 7.62 NATO to subsonic 300 BLK to short barrel 5.56 NATO. What have we learned about the Infinity, and how its technology works? How does the hybrid Otter Creek Infinity technology respond to lowering blast load input severity with 5.56? Very interesting findings – this technical talk covers them. a. Big Picture and – barrel length? Why does it matter, anyway? (00:09:04) b. Solid 5.56 End Cap Performance (00:24:34) c. Vented 5.56 End Cap Performance (00:50:32) d. Vented 7.62 End Cap Performance (00:53:28) e. Performance comparison and nuance (00:56:28) 2. Sound Signature Review 6.197 – Combat Application Technologies CAT KK on the 10.3 5.56 MK18. Hybrid design advanced silencers continue to push the envelope. The past 5 years have been full of tremendous performance gains, particularly in high pressure supersonic cartridge suppression. As the competition continues, how does form factor fit into the mix? The CAT KK, and others, bring that discussion to the forefront. Introductory talk for the whitepaper published today. (01:13:25)

Today’s Topics: 1. Sound Signature Review 6.195 – FOR Systems Monarch Recce on the 10.3 5.56 MK18. Speaking of form factor… this silencer is a little over 5 inches long, as tested, and it’s ready to party. Hybrid designs continue to be developed, and the status quo just might be changing. Do short 5.56 silencers have to be loud? Technical discussion of this whitepaper published last week. a. Intro (00:06:58) b. Physical overview (00:08:55) c. Silencer design (00:14:28) d. System performance (00:18:58) 2. Sound Signature Review 6.196 – Otter Creek Labs Infinity on the 14.5-in mid-length gas M4A1. You’ve seen this durable, versatile silencer on everything from 7.62 NATO to subsonic 300 BLK to short barrel 5.56 NATO. Have we solved its riddle yet? How does the hybrid Otter Creek Infinity technology respond to lowering blast load input severity with 5.56? Very interesting findings – intro talk for today’s publication. (00:41:33)

Today’s Topics: 1. Sound Signature Review 6.194 – Dillon Rifle Company DRC556 on the 14.5 5.56 M4. Oh my goodness – more Purposely Induced Porosity silencers? Yes. PIP is proliferating. How does this adaptation of the technology perform? Technical discussion for this paper published last week – the form factor wars are heating up! a. Intro (00:05:10) b. Physical overview (00:06:38) c. Silencer design (00:09:00) d. System performance (00:11:45) 2. Sound Signature Review 6.195 – FOR Systems Monarch Recce on the 10.3 5.56 MK18. Speaking of form factor… this silencer is a little over 5 inches long, as tested, and it’s ready to party. Hybrid designs continue to be developed, and the status quo just might be changing. Do short 5.56 silencers have to be loud? Learn more about why, or why not, in today’s report! (00:36:08)

Today’s Topic: 1. Sound Signature Review 6.194 – Dillon Rifle Company DRC556 on the 14.5 5.56 M4. Oh my goodness – more Purposely Induced Porosity silencers? Yes. PIP is proliferating. How does this adaptation of the technology perform? Form factor is becoming a hot topic lately. Let’s explore this new silencer from Dillon in this introductory discussion to the whitepaper published today! (00:03:58)

Today’s Topics: 1. Sound Signature Review 6.193 – Combat Application Technologies CAT/TSWIF on the 14.5 5.56 M4. This is a “blast diverter” micro silencer; it is intended to be used with blast diverters and flash suppressors from Apparition Instruments, Noveske Rifleworks, and others. Technical discussion of the whitepaper published last week. (00:08:22) 2. Sig 6.75 300 BLK Rattler LT backorder came in. How does it differ from the 6.75 Virtus TACOPS? Great question. It’s definitely similar, but also different. Initial observations and thoughts, as requested by many of you. Barrel and valve gas port sizes measured and on the PEW Science Small Arms Technical Data page of the website. (00:45:39)

Today’s Topics: 1. Sound Signature Review 6.193 – Combat Application Technologies CAT/TSWIF on the 14.5 5.56 M4. This is a “blast diverter” micro silencer; it is intended to be used with blast diverters and flash suppressors from Apparition Instruments, Noveske Rifleworks, and others. If you are avoiding SBR registration, does something like this work? Quick intro to the system. (00:07:35) 2. Listener Questions are Back! Let’s dive back into the 7th Solicitation. It’s been a minute. Let’s dive back in and answer your queries. (00:25:10)

Today’s Topics: 1. Sound Signature Review 6.192 – Engaged Industries Operator 5.56 on the MK18. Smaller diameter silencers making a comeback? Potentially. Does this silencer bring competitive performance to a crowded market? Technical discussion for this technical report published last week. (00:08:50) 2. Ongoing testing is awesome. New test hosts are awesome. New silencers are awesome. What a time to be alive! Let’s have a quick chat about where we see things going in the industry, as related to technology and performance. (00:41:20)

Today’s Topics: 1. Semiauto 300 BLK is here! Sound Signature Review 6.191 – Combat Application Technologies CAT/RAT on the 6.75-in SIG SAUER MCX AR-18 consumer retail LVAW analog in all three of its modular configurations (COVERT, FLOW, and Base). This is the technical talk for the report published last week. a. Technical Intro (00:07:24) b. SIG MCX technical performance factors (00:10:33) c. CAT RAT COVERT performance (00:42:38) d. CAT RAT FLOW performance (01:01:51) e. CAT RAT Base performance (01:09:29) 2. Sound Signature Review 6.192 – Engaged Industries Operator 5.56 on the MK18. Smaller diameter silencers making a comeback? Potentially. Weight savings can be real – does this silencer bring competitive performance to a crowded market? Introductory discussion for this technical report published with today’s episode. (01:21:28)

Today’s Topics: 1. Sound Signature Review 6.190 – the Primary Weapon Systems PWS BDE 22 on the subcompact Beretta 21A (Bobcat). A little rimfire palate cleanser for you! Monocore, 3D printed, user serviceable. Technical discussion of this lightweight silencer’s performance that was characterized in last week’s report (00:09:09) 2. Semiauto 300 BLK is here! Sound Signature Review 6.191 – Combat Application Technologies CAT/RAT on the 6.75-in SIG SAUER MCX AR-18 consumer retail LVAW analog. The CAT RAT is modular – but not how we typically see. This is also more than an end cap change. Let’s introduce both this new test host and this new silencer system designed specifically for the SIG MCX and Rattler family of PDWs. a. Topic Intro (00:35:33) b. SIG MCX System Intro (00:39:40) c. CAT RAT System Intro (00:51:33) d. CAT RAT Program Intro (01:03:26)

Today’s Topics: 1. PEW Science Member Deals are here! Slowly but surely, we would like to give you members something a little extra – more than you get already. This is our way of thanking you for all of your amazing support! (00:08:08) 2. Sound Signature Review 6.189 – the Q Southpaw on the standard untuned MK18. Highly requested research study – funded by PEW Science Members! How does this update to the Q Trash Panda, for 5.56, address the performance deficiencies we saw with over-bore? This is the technical discussion of the whitepaper published 28-MAY. (00:12:26) 3. Sound Signature Review 6.190 – the Primary Weapon Systems PWS BDE 22 on the subcompact Beretta 21A (Bobcat). A little rimfire palate cleanser for you! Monocore? 3D printed? Certainly – and you can take it apart. Let’s take a look at this lightweight silencer in this intro talk for the research published with today’s episode. (00:52:23)

Today’s Topics: 1. Sound Signature Review 6.188 – Off Grid Scorpius on the Beretta 21A subcompact .22LR pistol. Some more rimfire data and analysis for you folks! Small. Light. Quiet. Technical discussion for the whitepaper published last week. (00:07:07) 2. Sound Signature Review 6.189 – the Q Southpaw on the standard untuned MK18. Highly requested research study – funded by PEW Science Members! How does this update to the Q Trash Panda, for 5.56, address the performance deficiencies? Or does it at all? Let’s talk about that in this intro topic for the whitepaper published today with this episode. (00:25:57)

Today’s Topics: 1. Sound Signature Review 6.186 – Sylvan Arms SA30TI with supersonic .308. Classic design; smaller diameter. Simple and secure mount. Technical discussion for this 30 caliber silencer whitepaper published last week! (00:08:14) 2. Sound Signature Review 6.187 – Sylvan Arms SA223TIS on the 14.5 M4. The shorter, dedicated 5.56 silencer to complement the SA30TI. Another classic, small diameter system with the same simple ACME thread secondary-retention. Technical discussion for this 5.56 silencer whitepaper published last week! (00:28:04)

Today’s Topics: 1. Big shout-out to Mark and the Hunt Backcountry Podcast! Mark invited me to speak with him a while back about “Suppressor Science, Selection, and Sound” in sort of a “hunting centric” fashion. Please check out Episode 523 of their podcast when you can! (00:09:18) 2. Sound Signature Review 6.185 – Otter Creek Labs Infinity with subsonic 300 BLK. The Q mini Fix – an 8-in barrel proving ground, from the beginning. How does the versatile Infinity handle subsonic ammunition combustion out of a relatively short barrel? How does its performance compare with some older designs and some purpose-built 300 BLK designs? Technical discussion for this technical paper published 30-APR. (00:11:37) 3. Sound Signature Review 6.186 – Sylvan Arms SA30TI with supersonic .308. Classic design; smaller diameter. Simple and secure mount. Let’s take a look at this 30 caliber silencer in this introductory topic to the whitepaper published today with this episode! (00:37:36) 4. Sound Signature Review 6.187 – Sylvan Arms SA223TIS on the 14.5 M4. The shorter, dedicated 5.56 silencer to complement the SA30TI. Another classic, small diameter system with the same simple ACME thread secondary-retention. This is the introductory topic to the second whitepaper published today with this episode! (00:46:16)

Today’s Topic: Sound Signature Review 6.183 – BOE Mod 1 on the 14.5-in mid-length gas 5.56 M4A1. Yet another player entering the 5.56 suppression space. 3D printing involved? Of course. A bit of a twist with some conventional elements? Yes! This is the technical discussion to accompany the technical paper published on 16-APR. a. Introduction (00:07:56) b. Physical Characteristics (00:12:13) c. Performance Characteristics (00:25:53) d. Performance Comparisons (00:38:29)