In light of the ATF's announcement yesterday, I wanted to remind everyone about a free resource for researching your next suppressor or accessory purchase.

I built a site called Baffled (www.baffled.app) that lets you filter suppressors by spec. For example, you can pull up every 5.56 can under $600 that's full auto rated, HUB compatible and shorter than 7". You can sort by various features like price, size, etc. I was surprised how many suppressors there were out there that were under $300

It also helps you figure out which mounts, muzzle devices, and other accessories are compatible with the suppressor you're looking at, and compare various suppressor builds. Cans reviewed by Pew Science are linked to the respective PS page and I have a section on there that covers the results of Thunderbeast Arms Co's annual suppressor testing event, the TBAC Silencer Summit

It's free and you don't need to sign up to use it.

Huxwrx Flow 45m

I have a Dead Air Wolfman with a KeyMicro adapter, and my M-LOK flashlight mount appears to be lightly touching or resting against the adapter. The pictures show the setup from a few angles, including a close-up of the clearance.

Is this contact a potential safety concern, or something I should have inspected by a gunsmith or Dead Air before shooting? I can’t tell whether it’s just close proximity or actual interference, and I don’t want to assume it’s fine.

Has anyone run into this with a similar setup? I’d appreciate any guidance or firsthand experience.

Today I present the Mar Lisle carbine as I have affectionally dubbed it. This Marlin Model 25 was originally my grandfathers and it has just sat since his passing. Wanted to do something neat with it and decided that I would build my first integrally suppressed rifle from scratch. Everything you see is done and or made by me.

Suppressor is 16" long, 6" of blast chamber and 10" of baffles for a total of 22 baffles. Can be removed from the rifle and used on other rifles in the future with same barrel profile. Gave it a coat of satin dark walnut to give it that old patina look.

Stock in letting was done with a 1/2" end mill and a 5/8" ball end mill. Getting it all leveled in the mill was a chore but it held up and stayed put during milling. A little sanding and stain just to cover up raw wood and all the dings and scratches from over the years.

This week i am going to drill and tap receiver for pic rail then disassemble the entire rifle again, strip all the old bluing and hot blue all of it. Then it will be 100%

Applied for the stamps on Wednesday at noon and was approved the next morning. 19 hour wait. And it turns out it may be the last stamps I'll ever have to file lol

Bought this on a whim…

Has anyone had a chance to compare these 2 for sound?? Or are there better 22lr options now?

Was sitting down to prep for the VENT 1 subsonic technical talk, and had been looking through inventory and I thought holy crap we've evaluated Purposely Induced Porosity (PIP) technology more times than I had remembered.

As I discuss today, I think it's important to remember that's not any one technology or feature of a silencer that dictates the performance. You can use PIP and create things that are not great - I know this because we have evaluated prototypes that never made it to the light of day that behaved..... less than stellar.

It's interesting looking at the spread in the photo. Zastava, Dillon, and PTR all license PIP technology. And if you were just looking at that and didn't know what that meant, you might think "oh, OK, that means all the silencers basically perform the same way and do the same thing" and you would be wrong.

• The VENT series behaves relatively similarly in some ways, across its main three models, but the Spiritus really kicks it up a notch for 5.56 specificity over the VENT 3.
• The Dillon DRC family of silencers is interesting, especially for their size(s) or length(s). However, they have very different behavior than the VENT family from PTR. Not pictured is their .50 silencer that we have not evaluated, and I'm not sure of the recall status on that one but there was an active recall so if you have one and haven't contacted Dillon, please do so.
• Then you have the ZVUK (Zastava) - again, completely different than the VENT and DRC series.

I say all this to just reinforce a point- lattice structures and other design elements can be wonderful features of modern high performance silencers, but like many complex systems, it's the sum of the parts that dictates overall performance. To me (just my opinion), PIP should be viewed as a "power up" to silencers that utilize it. Used intelligently, you can do wonderfully insane things. Haphazardly, I feel that one could waste a lot of time and money.

We shall see how things progress! There are certainly other lattice structure technologies folks are pursuing. Durability, cleaning, and other factors do end up rearing their heads as potential compromises. The question may end up being... when do things like that matter, if at all, and for whom? Which use cases? It's interesting to think about!

VENT 1 subsonic technical talk I hope picks up where we left off two years ago with the 7.62 NATO evaluation and introduces some new folks to this interesting technology showcased again in last week's report!

The photograph contains Silencer Sound Standard Section 6 report numbers, some of which are member research supplements, but you can use this as a key to find things, in addition to the "PIP" metadata tag on the website, also on the podcast page, etc.

From left to right:

Zastava ZVUK

• Report 6.202: 16-in Yugo AK

Dillon DRC556

• Report 6.194: 14.5-in M4

Dillon DRC308

• Report 6.211: 14.5-in SR-25

PTR VENT 1

• Report 6.160: 20-in .308 bolt
• Report 6.238: 8-in 300BLK bolt

PTR VENT 3

• Report 6.135: 10.3-in MK18
• Member Research Supplement 6.169: FLOW 556K, FLOW 762 Ti, WB, Velos, VENT 3, FLOW 556 Ti

PTR VENT 2

• Report 6.131: Full size MP5 (SP5)
• Member Research Supplement 6.184: Phoenix, RS9, CASH 9K, Lithium, VENT 2, MOB, Wolfman long and short

PTR VENT Spiritus 556i

• Report 6.175: 10.3-in MK18
• Report 6.176: 14.5-in M4

Podcast Stuff

Episode 324 of The Jay Situation Podcast is out now on pewscience.com and all major providers.

Direct-download from the website, or use your favorite provider below:

Amazon Music | YouTube | YouTube Music | iTunes | Spotify | Pandora | TuneIn | Direct RSS Link

Today's topic:⠀

1. Sound Signature Review 6.238 – PTR VENT 1 on 8-in 300 BLK bolt-action. Welcome back, VENT 1 and PIP. It’s been a minute. What happens when this high performance 30 caliber silencer gets significantly lower pressure input than it did in the 2024 .308 report? Technical discussion of this high-performance silencer (00:05:55)

a. Re(intro) to the VENT 1 and PIP tech (00:07:41)

b. VENT 1 general overview (00:12:29)

c. VENT 1 silencer design and functional physics (00:18:11)

d. VENT 1 subsonic 300 BLK Hazard Map in Silencer Hazard Map Brief 8.1.35 (00:38:28)

e. Technical performance discussion (00:48:31)

f. Performance Comparisons and Overall thoughts (00:58:50)

As always, thank you so much for listening, and for your support!

Happy Thursday!^(My dudes)

YouTube doesn't seem to have the episode yet this morning.... sometimes that happens (don't know why). All other providers have it though!

Scrap aluminum, 1" inner diameter, 147 grams, 5 flat baffles. Sounds worse than my OCL ti, but definitely hearing safe without protection.

Ty GOA

(tested with cci 45g subsonic hollow point, garage pops)

Loved keymo for as long as I've had it, but tuna cans had a buy 2 get one deal. Probably not the best cans in the suppression department but I can't imagine it be worse than running a 30cal can all the time. Hopefully find out this weekend.

Mark 5hd is coming.....