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Posted: 11/13/2023 1:54:43 PM EDT
[Last Edit: Gentleman4561]
I picked up one of the dirt cheap Rad 45s ($350) as I figured at that price it would be worth it.
As expected, the silencer is louder than any of my other pistol cans due to being a "flow-through". Since the RAD 45 has conventional baffles, along with the "flow" aspect, I was thinking I could TIG weld the vent holes in the end cap to reduce sound and get rid of some of the "Flow" technology that makes the can louder. Has anyone done this yet? I figure if it works well, one of our Arfcom machinist vendors could just make a replacement cap for those who want it be quieter.  Attached File |
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TX, USA
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Posted: 11/13/2023 3:07:23 PM EDT
[#1]
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GA, USA
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Posted: 11/13/2023 3:10:41 PM EDT
[#2]
What are you comparing it to?
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Posted: 11/13/2023 4:20:52 PM EDT
[#3]
Originally Posted By Gentleman4561: I picked up one of the dirt cheap Rad 45s ($350) as I figured at that price it would be worth it. As expected, the silencer is louder than any of my other pistol cans due to being a "flow-through". Since the RAD 45 has conventional baffles, along with the "flow" aspect, I was thinking I could TIG weld the vent holes in the end cap to reduce sound and get rid of some of the "Flow" technology that makes the can louder. Has anyone done this yet? I figure if it works well, one of our Arfcom machinist vendors could just make a replacement cap for those who want it be quieter. https://www.ar15.com/media/mediaFiles/211636/IMG_7251_JPG-3026353.JPG I would look for a different end cap before welding anything. I have a rad45 still in jail. I have a rad9 currently and like it more than my other 45 cans on my 9mm guns. |
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Posted: 11/13/2023 4:38:31 PM EDT
[#4]
Quote HistoryOriginally Posted By yamahawarrior89: I would look for a different end cap before welding anything. I have a rad45 still in jail. I have a rad9 currently and like it more than my other 45 cans on my 9mm guns. I don't know what the guts of a Rad 45 look like, but welding up or replacing the front cap wouldn't make much difference unless the "flow through" features are essentially coaxial veins that completely bypass the baffles, have a more-or-less straight shot through to the front, which I doubt they do. A conventional core design will have little or no performance difference with vs. without a front cap. If you're able to remove them and post pictures, I can better advise. |
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GA, USA
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Posted: 11/13/2023 5:07:12 PM EDT
[#5]
Quote HistoryOriginally Posted By ECCO_Machine: I don't know what the guts of a Rad 45 look like, but welding up or replacing the front cap wouldn't make much difference unless the "flow through" features are essentially coaxial veins that completely bypass the baffles, have a more-or-less straight shot through to the front, which I doubt they do. A conventional core design will have little or no performance difference with vs. without a front cap. If you're able to remove them and post pictures, I can better advise. There is an annulus between the baffles and tubes, and the baffles have helical ribs extending into the annulus to re-direct the flow to some degree. The vents on the end cap are in communication with the annulus. I use mine on my USP 9 Tactical, and it has sounded pretty good to me so far. |
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AZ, USA
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Posted: 11/13/2023 5:20:26 PM EDT
[#6]
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AZ, USA
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Posted: 11/13/2023 5:21:20 PM EDT
[#7]
Peachy beat me to it.
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Posted: 11/13/2023 5:43:07 PM EDT
[#8]
The MK9K has a big coaxial space and I don't think it is flow through. It would seem logical that sealing it in front would be sort of like making it into a MK9K style of can, which is to say a quiet can, so maybe that would work.
I wonder if RTV silicone around the smooth diameter of the last baffle could perhaps be shootable "sealed" once dry to see how different it might sound? You could probably pam cooking spray the front cap ID as a sort of "release compound" and maybe tape the ports shut so they don't become physically bonded. Maybe an O-ring would fit in the end there if the geometry was agreeable. |
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Posted: 11/13/2023 6:32:51 PM EDT
[#9]
That's about what I figured. So like I said, just eliminating the ports really won't do much, as all that higher pressure gas is still getting into the front chamber ahead of the last baffle.
Quote HistoryOriginally Posted By Green0: The MK9K has a big coaxial space and I don't think it is flow through. It would seem logical that sealing it in front would be sort of like making it into a MK9K style of can, which is to say a quiet can, so maybe that would work. I wonder if RTV silicone around the smooth diameter of the last baffle could perhaps be shootable "sealed" once dry to see how different it might sound? You could probably pam cooking spray the front cap ID as a sort of "release compound" and maybe tape the ports shut so they don't become physically bonded. Maybe an O-ring would fit in the end there if the geometry was agreeable. Yep, or something along those lines to turn the flow-through features into a coaxial chamber which has to bleed off back into the can before it can exit. |
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VA, USA
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Posted: 11/13/2023 7:36:18 PM EDT
[Last Edit: VaFish]
[#10]
Quote HistoryOriginally Posted By peachy: What are you comparing it to? I'd like to know too. I have one sitting in jail. Couldn't pass it up for the price. OP, you could contact Huxwrx and see if they will sell you another end cap. |
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Posted: 11/13/2023 8:17:36 PM EDT
[#11]
I’ve always felt .45 acp was kind of a disappointing round to suppress. I always expected it to be great bc subsonic, but it just doesn’t sound that good to me, in my experiences with a variety of platforms. It’s not terrible, but I don’t love it.
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Posted: 11/13/2023 9:18:22 PM EDT
[#12]
Quote HistoryOriginally Posted By dillhole: I’ve always felt .45 acp was kind of a disappointing round to suppress. I always expected it to be great bc subsonic, but it just doesn’t sound that good to me, in my experiences with a variety of platforms. It’s not terrible, but I don’t love it. Meh using .45 auto in a .45 can has been pretty great in the couple I have. Shooting say most 9mm loads through a .45 can is notably louder. I only have an Obsidian and Omega and wolfman to compete in the pistol realm. That and I’m talking PCC not pistol Out of curiosity OP what are you shooting? |
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Posted: 11/13/2023 9:29:27 PM EDT
[Last Edit: Gentleman4561]
[#13]
Quote HistoryOriginally Posted By ECCO_Machine: I don't know what the guts of a Rad 45 look like, but welding up or replacing the front cap wouldn't make much difference unless the "flow through" features are essentially coaxial veins that completely bypass the baffles, have a more-or-less straight shot through to the front, which I doubt they do. A conventional core design will have little or no performance difference with vs. without a front cap. If you're able to remove them and post pictures, I can better advise.  Attached File Attached FileHere you can see vents in the blast chamber that allow gas to travel up the sides of the tube to the vents. I wonder if a "shield" of sorts could go in there around the Nielsen device to keep gas from entering the sides of the baffle stack.  Attached File |
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Posted: 11/13/2023 9:32:13 PM EDT
[#14]
Quote HistoryOriginally Posted By peachy: What are you comparing it to? Didn't try it on 9mm yet, but the FRP is very bad and it's all around louder than the other 2. |
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Posted: 11/13/2023 9:38:06 PM EDT
[#15]
The 2nd to last baffle  Attached FileHere is a photo of the last baffle and the end cap.  Attached FileDefinitely seems like if that gap could be eliminated it would force gas back into the silencer vs out the vent holes. |
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Posted: 11/13/2023 9:44:14 PM EDT
[Last Edit: Gentleman4561]
[#16]
Quote HistoryOriginally Posted By Green0: The MK9K has a big coaxial space and I don't think it is flow through. It would seem logical that sealing it in front would be sort of like making it into a MK9K style of can, which is to say a quiet can, so maybe that would work. I wonder if RTV silicone around the smooth diameter of the last baffle could perhaps be shootable "sealed" once dry to see how different it might sound? You could probably pam cooking spray the front cap ID as a sort of "release compound" and maybe tape the ports shut so they don't become physically bonded. Maybe an O-ring would fit in the end there if the geometry was agreeable. I basically coated the exterior of the 2nd to last baffle so it should be "sealing" off the endcap. Photo of the "sealed" last baffle.  Attached File |
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Posted: 11/14/2023 2:41:02 PM EDT
[#17]
It will be interesting to see if you perceive a drop in sound associated with stopping the blow-by.
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Posted: 11/14/2023 2:57:51 PM EDT
[#18]
Quote HistoryOriginally Posted By Green0: It will be interesting to see if you perceive a drop in sound associated with stopping the blow-by. I have a iPhone video of the "before" and will record an after, but well know phone mics aren't the best for that. To derail, Cole got me hooked up with one of the Polish SF cans, I am excited to get to blasting with that. |
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GA, USA
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Posted: 11/14/2023 3:05:23 PM EDT
[#19]
Quote HistoryOriginally Posted By Gentleman4561: Shot it on my 1911 next to my Obsidian and Tirant. Didn't try it on 9mm yet, but the FRP is very bad and it's all around louder than the other 2. Any perceived difference in blowback? I think that's supposed to be the tradeoff. |
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Posted: 11/14/2023 3:58:19 PM EDT
[#20]
Quote HistoryOriginally Posted By peachy: Any perceived difference in blowback? I think that's supposed to be the tradeoff. |
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TX, USA
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Posted: 11/15/2023 8:50:19 AM EDT
[#21]
Loudest pistol can I've ever shot....
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Posted: 11/15/2023 9:44:55 AM EDT
[#22]
Quote HistoryOriginally Posted By CSGroup: Loudest pistol can I've ever shot.... |
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USA
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Posted: 11/15/2023 11:31:45 AM EDT
[#23]
That’s disappointing. Mine just got out recently but haven’t had a chance to try it out yet. I got it at a discount but not as low as $350.
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GA, USA
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Posted: 11/15/2023 12:00:00 PM EDT
[#24]
Just out of curiosity, anyone have the RAD 9, and if so, how does it compare to other 9mm suppressors?
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Posted: 11/15/2023 1:44:37 PM EDT
[Last Edit: Gentleman4561]
[#25]
Tested it today after sealing, it is still louder than the Tirant (that is all I compared to today) but sealing the last baffle/end cap definitely seemed to help.
This is of course going off my hearing, not scientific equipment. Sealing the end of the can also cut down the FRP significantly. iMovie also showed less peaking in the audio with the sealed can, but thats based off an iPhone mic and could certainly change just by the angle I held the phone. I think next I will see if i can seal the exterior of the baffles from the blast chamber to force all gas through the traditional baffles.  OSS/Hux Rad 45 before and after sealing |
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Posted: 11/15/2023 1:47:00 PM EDT
[#26]
Quote HistoryOriginally Posted By peachy: Just out of curiosity, anyone have the RAD 9, and if so, how does it compare to other 9mm suppressors? |
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GA, USA
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Posted: 11/15/2023 2:35:58 PM EDT
[#27]
Quote HistoryOriginally Posted By Gentleman4561: I don't, if it uses the same baffle system as the 45 I would expect similar or perhaps even worse performance if shooting super sonic 9mm. I'm mostly curious because Pew's muzzle data for the Cash 9 (which seemingly is identical to the short Rad 9) is nearly identical to Pew's muzzle data for the short TiRant 9M-HD. The Cash 9 is 144.5db, and the short TiRant is 144.3db, each measured 1m left of muzzle. The Cash 9/Rad 9 is also a little bit shorter than the short TiRant 9M-HD (5.15" vs 5.8"). Based on that, I had assumed that the full-size Rad 9 probably would perform comparably to many other full-size 9mm cans. Too bad Pew didn't test the Rad 9, instead of the Cash 9. I haven't been able to find much other testing of the Rad series beyond Pew's datapoint. |
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Posted: 11/15/2023 3:49:10 PM EDT
[#28]
Quote HistoryOriginally Posted By peachy: I'm mostly curious because Pew's muzzle data for the Cash 9 (which seemingly is identical to the short Rad 9) is nearly identical to Pew's muzzle data for the short TiRant 9M-HD. The Cash 9 is 144.5db, and the short TiRant is 144.3db, each measured 1m left of muzzle. The Cash 9/Rad 9 is also a little bit shorter than the short TiRant 9M-HD (5.15" vs 5.8"). Based on that, I had assumed that the full-size Rad 9 probably would perform comparably to many other full-size 9mm cans. Too bad Pew didn't test the Rad 9, instead of the Cash 9. I haven't been able to find much other testing of the Rad series beyond Pew's datapoint. I do think our ears all interpret sound differently, I think PS is a good source to look at for figuring out how much damage you might do to your ears, but my experience has been that the ratings often don't match up to what our ears think is the "quietest". I see you are in GA, if you ever want to get together and shoot some cans we could do it. |
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USA
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Posted: 11/15/2023 3:55:36 PM EDT
[#29]
I’ve mostly shot my Rad 9 in short on my MP5’s. It sounds really good as long as it’s direct threaded. Using 3 lug made it noticeably louder.
Shot it with 38 Specials through my Henry X along with an Obsidian 9, Mod 9 and Octane 9 and really couldn’t tell a difference that I recall. |
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AZ, USA
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Posted: 11/15/2023 4:29:43 PM EDT
[#30]
Quote HistoryOriginally Posted By arndog123: I’ve mostly shot my Rad 9 in short on my MP5’s. It sounds really good as long as it’s direct threaded. Using 3 lug made it noticeably louder. Does the 3 lug vs DT sound difference apply to your other cans like the Obsidian 9 (long)? |
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Posted: 11/15/2023 7:46:22 PM EDT
[#31]
Are any of these flow through cans quiet at all?
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Posted: 11/15/2023 8:39:44 PM EDT
[Last Edit: thehun06]
[#32]
Quote HistoryOriginally Posted By Gentleman4561: Tested it today after sealing, it is still louder than the Tirant (that is all I compared to today) but sealing the last baffle/end cap definitely seemed to help. This is of course going off my hearing, not scientific equipment. Sealing the end of the can also cut down the FRP significantly. iMovie also showed less peaking in the audio with the sealed can, but thats based off an iPhone mic and could certainly change just by the angle I held the phone. I think next I will see if i can seal the exterior of the baffles from the blast chamber to force all gas through the traditional baffles.  https://www.youtube.com/watch?v=IgIkiD3-kOADef better but man that tone is not very good ... could be the mic ... |
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Posted: 11/15/2023 8:41:06 PM EDT
[#33]
Quote HistoryOriginally Posted By arndog123: I’ve mostly shot my Rad 9 in short on my MP5’s. It sounds really good as long as it’s direct threaded. Using 3 lug made it noticeably louder. Shot it with 38 Specials through my Henry X along with an Obsidian 9, Mod 9 and Octane 9 and really couldn’t tell a difference that I recall. That is because 3-lugs leak 
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USA
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Posted: 11/15/2023 8:59:14 PM EDT
[#34]
Quote HistoryOriginally Posted By emccracken: Does the 3 lug vs DT sound difference apply to your other cans like the Obsidian 9 (long)? For the most part. To my ears it’s more noticeable on the Rad 9. |
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GA, USA
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Posted: 11/15/2023 9:10:59 PM EDT
[#35]
Quote HistoryOriginally Posted By Gentleman4561: Gotcha, I am comparing these to old Kevin B Tirants too, not the newer ones. I do think our ears all interpret sound differently, I think PS is a good source to look at for figuring out how much damage you might do to your ears, but my experience has been that the ratings often don't match up to what our ears think is the "quietest". I see you are in GA, if you ever want to get together and shoot some cans we could do it. Yeah, I mostly ignore the ratings, particularly if it is an application where I’ll already be wearing hearing protection. I appreciate the offer to meet up. I’m swamped through the holidays but may take you up on it thereafter to see how much better the Obsidian and TiRant sound. Not sure if I’ll live with what I’ve got or chase improvement. |
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GA, USA
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Posted: 11/15/2023 9:14:43 PM EDT
[#36]
Quote HistoryOriginally Posted By JKrammes: Are any of these flow through cans quiet at all? I’ve noticed that my perception of how a flow through rifle can sounds is much more heavily influenced by whether there is any reflective structure nearby. Makes sense given that more noise/gas is going out the end. If there is a nearby wall or berm, that noise comes back to you. |
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Posted: 11/15/2023 9:20:22 PM EDT
[#37]
Quote HistoryOriginally Posted By JKrammes: Are any of these flow through cans quiet at all? I haven't experienced a quiet flow through can yet if by flow through you mean things like +-5% cyclic increase. It seems like 3-5 DB loss of performance generally accompanies them. |
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Posted: 11/15/2023 9:36:01 PM EDT
[#38]
Quote HistoryOriginally Posted By emccracken: Does the 3 lug vs DT sound difference apply to your other cans like the Obsidian 9 (long)? But, I run a Obsidian 9 in 3 lug on a full auto MP5 and it still sounds pretty amazing. |
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KY, USA
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Posted: 11/16/2023 8:22:48 AM EDT
[#39]
Quote HistoryOriginally Posted By thehun06: That is because 3-lugs leak They also take up a lot of blast chamber volume. |
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Posted: 1/1/2024 7:04:48 PM EDT
[#40]
 Attached FileShot mine with a SAR K2 45C, using a Griffin Cam-Lok direct thread adapter. Using 185gr loads (Bullseye powder, near 1000 fps), it cycled fine but just dribbled out. Will have to try it with 230gr loads but I am happy with that. I was using a direct thread mount but is sounded good to me, no blowback either. Will have to compare it to the other cans I have. Didn't try it in short mode. |
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VA, USA
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Posted: 1/27/2024 10:48:05 PM EDT
[#41]
I just got my RAD45 out of jail.
Only can I have to test it against in .45 ACP is a Rex Silentium MG7. Which is a short 5.5" K can, however if my math is right has pretty close to the same internal volume as the RAD45 due to it's larger diameter. The RAD45 was much quieter than the MG7, and I was shooting on a covered outdoor range with a slanted roof in front of me to bounce sound back. I switched the RAD45 over to a tri lug mount and tested it back to back with my YHM R9 and my sons Wolfman. I couldn't tell a difference on supersonics but my son thought his Wolfman was quieter from his position along side of me. Both the RAD45 and Wolfman were noticeably quieter than the R9. Subsonics all three sounded about the same to my, but my son said the Wolfman and RAD45 were quieter than the R9 with a slight nod to his Wolfman as the quietest. Would love to find someone nearby that has other .45 ACP suppressors to compare side by side with the R45. |
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USA
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Posted: 1/28/2024 7:48:45 AM EDT
[#42]
Took my new Henry X 44 mag out yesterday and brought along my Rad 45, Obsidian 45 and Omega 45K. I was shooting 44 specials and the Obsidian was the quietest. It was hard to tell a difference between the other two. The Rad 45 might’ve been a hair quieter.
I brought along my Beretta M9A4 to test blowback. This gun throws a lot of crap back at you when suppressed. From what I’ve been told running w/o a booster should alleviate this problem which is why I have a an Ecco TLX 9 in jail. The Obsidian 45 and Omega had minor blowback but I didn’t feel anything with the Rad 45. Wish I would’ve brought my Rad 9 along for comparison. 
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GA, USA
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Posted: 1/28/2024 10:18:20 AM EDT
[#43]
Quote HistoryOriginally Posted By arndog123: Took my new Henry X 44 mag out yesterday and brought along my Rad 45, Obsidian 45 and Omega 45K. I was shooting 44 specials and the Obsidian was the quietest. It was hard to tell a difference between the other two. The Rad 45 might’ve been a hair quieter. I brought along my Beretta M9A4 to test blowback. This gun throws a lot of crap back at you when suppressed. From what I’ve been told running w/o a booster should alleviate this problem which is why I have a an Ecco TLX 9 in jail. The Obsidian 45 and Omega had minor blowback but I didn’t feel anything with the Rad 45. Wish I would’ve brought my Rad 9 along for comparison. https://i.ibb.co/JvhQyc1/IMG-0589.jpg Thanks for the range report! |
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AZ, USA
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Posted: 1/28/2024 1:18:34 PM EDT
[#44]
Quote HistoryOriginally Posted By arndog123: Took my new Henry X 44 mag out yesterday and brought along my Rad 45, Obsidian 45 and Omega 45K. I was shooting 44 specials and the Obsidian was the quietest. It was hard to tell a difference between the other two. The Rad 45 might’ve been a hair quieter. I brought along my Beretta M9A4 to test blowback. This gun throws a lot of crap back at you when suppressed. From what I’ve been told running w/o a booster should alleviate this problem which is why I have a an Ecco TLX 9 in jail. The Obsidian 45 and Omega had minor blowback but I didn’t feel anything with the Rad 45. Wish I would’ve brought my Rad 9 along for comparison. https://i.ibb.co/JvhQyc1/IMG-0589.jpg How did the three cans rank on the Beretta? |
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USA
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Posted: 1/28/2024 4:23:01 PM EDT
[#45]
Quote HistoryOriginally Posted By emccracken: How did the three cans rank on the Beretta? Obsidian was the quietest followed by the Rad45 and finally the Omega 45K. |
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USA
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Posted: 1/28/2024 8:36:30 PM EDT
[#46]
So it seems the reviews are mixed in regards to the RAD 45. Some like it, some don't like it.
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GA, USA
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Posted: 1/28/2024 8:50:09 PM EDT
[#47]
Quote HistoryOriginally Posted By tranzformer: So it seems the reviews are mixed in regards to the RAD 45. Some like it, some don't like it. I don’t know if it transfers over to the flow-through pistol suppressors, but in my experience with various flow-through/LBP rifle suppressors, the shooter experience/perception can vary a lot based on the environment you are shooting in and whether there are reflective surfaces around to bounce sound back at you. Shooting in a wide-open field may sound different than shooting at a close-up berm. |
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VA, USA
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Posted: 1/28/2024 8:52:15 PM EDT
[#48]
Quote HistoryOriginally Posted By tranzformer: So it seems the reviews are mixed in regards to the RAD 45. Some like it, some don't like it. To be fair, those of us who like it, don't have anything better to compare it to. I thought my Rex MG7 .458 sounded pretty good on my Glock 21 until I shot the RAD45. I'd like to shoot my RAD45 alongside an Obsidian. |
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USA
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Posted: 1/28/2024 9:53:14 PM EDT
[#49]
Just from posts on here, reddit, Youtube videos and elsewhere, it rally is the two extremes. On one hand I read reviews from owners that really like their RAD45. Then on the other extreme you have owners stating that it is very underwhelming and are disappointed with it.
I have never shot one, so hard to know. I have been considering one and the more negative reviews have made me question. |
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VA, USA
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Posted: 1/28/2024 10:38:54 PM EDT
[#50]
Quote HistoryOriginally Posted By tranzformer: Just from posts on here, reddit, Youtube videos and elsewhere, it rally is the two extremes. On one hand I read reviews from owners that really like their RAD45. Then on the other extreme you have owners stating that it is very underwhelming and are disappointed with it. I have never shot one, so hard to know. I have been considering one and the more negative reviews have made me question. I didn't hear a bad review of them, and that was this thread, until after I had purchased mine and filed a form 4, so I was pretty much stuck with it. I ordered it through EV and for the price I paid I'm very happy with it. But again, my .45 suppressor experience is very limited. So, maybe ignorance is bliss. Or maybe there is some weird quality problem with the RAD45 that makes some of them very noisy. It's shame there isn't some place we can go to test suppressors side by side and make our choices. If you are anywhere near Northern Virginia I'd be happy to meet you at a range to hear it. |
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