Posted: 5/17/2026 3:55:11 PM EDT
Spoiler alert: It didn't go well.   Brand new Glock 43X Hush Puppy with a SilencerCo Omega 9K and running Badlands Munitions Co. 9mm 147GR HP Subsonic 980FPS. For context, I've run this can and this ammo without issue on several other handguns and a KP9 AK pistol. Right off the bat, with the switch in the single-shot mode, shooting the gun sucks. It seems like a cool idea but with the slide unable to cycle, the energy is transferred directly into your hand. I quickly got hot spots on my right index finger and second knuckle on my thumb. It felt like with every shot, they were being tapped with a ballpeen hammer. To use the "Hush Puppy" mode, each shot requires flipping the switch upwards, racking the slide to cycle a new round, and then flicking the switch downward again. That quickly got old and so I flipped the switch upward and left it to cycle normally. Had several out-of-battery instances requiring me to smack the end of the slide to send it home. After firing just three 10-round magazines downrange, the set screw on the switch had managed to back itself out and the switch was now loose and floppy. Since it naturally fell down, it was only in single-shot mode at that point. So I wasn't able to continue. Upon bringing the gun home and disassembling and cleaning it, I noticed a TON of wear for just 30 rounds through the pipe. Weird wear marks on the muzzle, lots of scraping on the inside of the slide, and the barrel looks like it's got 10K rounds through it already. And I was running Mil-Comm TW25B applied generously in all the right spots. Set screw is very shallow and had no thread locker on it from the factory. I'm not sure the reasoning there, but before applying any, I'm going to call Hush Puppy and talk through my challenges. All in all, a huge disappointment.        
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FPNI Just because something can be produced doesn't mean that it should be produced. Did you notice the purported benefits of the locked slide when firing suppressed? Hush Puppy® Slide Lock – An officially licensed component, the slide lock system reduces mechanical noise during suppressed operation, maximizing stealth and efficiency. |
I'm trying to figure out the three muzzle wear spots... Boise Black Rifle had a couple of these in stock and I almost snagged one a few weeks ago. I'm going to stick around and see what they say when you hear back. I like weird novelty things like this and it got my interest. Glad you are beta testing for me 
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Quoted: I'll rephrase my question. Was the reduction in noise noticeable in the locked slide mode? There was a reduction in noise in the locked slide mode. Uploaded a video to share below. Manipulating the gun was a bit awkward because of how stiff the new parts were:  Failed To Load Title |
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Updates. TLDR: Shark Coast Tactical said the firearm is covered under a lifetime warranty and they are fully taking care of me. ... As the end user, I assumed I would have to have conversations with three different manufacturers: Hush Puppy Project, Zaffiri Precision, and Shark Coast Tactical since it's a collab product. Turns out I was wrong and should've just started with SCT. Nonetheless, I started with HPP and Zaffiri on Monday morning. HPP said it depends on where the firearm originated from--one of their dealers or SCT's. They ended up referring me to a specific contact at SCT. Zaffiri was very responsive via email and apologetic; they said they'd send me out a replacement barrel and a return shipping label for the original one. Since then, I spoke to Joshua in SCT's production facility. We initially emailed a few times and then he asked for my number to talk via phone to expedite the process. He's based in FL, and he called me after 6 pm his time, which I thought was a bit above and beyond. Super knowledgeable guy and we talked through all of my concerns. They've since started producing their own barrels in-house, so he's shipping the gun back to their facilities, swapping in their barrel and refinishing the slide. He'll then test-fire it with one of their cans and see if he can reproduce any of the other issues. All in all, happy with the responsiveness from all three manufacturers and looking forward to SCT taking care of this. Also, I did notice two things on my setup. The suppressor threads on very far to the barrel. It feels like it should stop several turns prior but then keeps going to point of feeling like it's overindexing. Also, there's very little clearance when it's mounted. And the three wear spots? They correspond directly to three notches in the piston, which I hadn't noticed before. So there's definitely some contact happening during normal firing.  
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Quoted: Interesting. OP what finish is the barrel supposed to have? Zaffiri Precision’s website offers four finishes for Glock 43/43X—one of which is black nitride. I would assume this is the same finish they used for their barrels specific to the Hush Puppy pistols, but I’m not certain. |
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Quoted: Also, I did notice two things on my setup. The suppressor threads on very far to the barrel. It feels like it should stop several turns prior but then keeps going to point of feeling like it's overindexing. Also, there's very little clearance when it's mounted. And the three wear spots? They correspond directly to three notches in the piston, which I hadn't noticed before. So there's definitely some contact happening during normal firing. Guns with a pencil-style or narrow-profile barrel, like the G43/48, don't have enough shoulder for a suppressor to index using a standard piston. They require a piston with an internal shoulder to index against the muzzle/crown of the barrel. A regular 1/2-28 piston will just keep spinning onto the barrel until the threads bottom out. Then the barrel is too deep in the piston and you'll often have clearance issues like you're seeing. |
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Quoted: Guns with a pencil-style or narrow-profile barrel, like the G43/48, don't have enough shoulder to for a suppressor to index using a standard piston. They require a piston with an internal shoulder to index against the muzzle. A regular 1/2-28 piston will just keep spinning onto the barrel until the threads bottom out. Then the barrel is too deep in the piston and you'll often have clearance issues like you're seeing. This is very helpful. Had no idea. Thank you! |
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The wear marks look standard for the newer post-gen-4 Glocks. I have Gen 3 Glocks (with the frying pan finish) with tens of thousands of rounds that have less visible wear than my G48 after 200 rounds. It's just a shit finish. I dont know about off-brand stuff but for new Glocks it looks standard. My Zaffirri slides have a different finish that is also shit and wears off. I'm surprised that the recoil with the slide locked was harsh. I guess it makes sense and makes me appreciate the efficiency of a modern semi-auto. |
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Quoted: Doh! RIP Shark Arms and the disorganized mess of a buying experience that Chris delivered on every time. But yeah, wrong company. Quoted: Quoted: Thread title needs an edit..... the "Shark Arms" had me  .Doh! RIP Shark Arms and the disorganized mess of a buying experience that Chris delivered on every time. But yeah, wrong company. 
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Quoted: Zaffiri Precision’s website offers four finishes for Glock 43/43X—one of which is black nitride. I would assume this is the same finish they used for their barrels specific to the Hush Puppy pistols, but I’m not certain. Judging from the wear on that barrel, that is indeed the shittiest nitride finish in the known universe. On par with the Glock finish applied on the barrel of my G45. The Faxon G17 threaded barrel I have has approximately 500 rounds and still looks almost brand new. |
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Quoted: This is very helpful. Had no idea. Thank you! Quoted: Quoted: Guns with a pencil-style or narrow-profile barrel, like the G43/48, don't have enough shoulder to for a suppressor to index using a standard piston. They require a piston with an internal shoulder to index against the muzzle. A regular 1/2-28 piston will just keep spinning onto the barrel until the threads bottom out. Then the barrel is too deep in the piston and you'll often have clearance issues like you're seeing. This is very helpful. Had no idea. Thank you! In Silencerco parts, you want sku# AC1756, "1/2 x 28 SN Piston". The 1/2 28 SN Piston will index on the muzzle of the barrel instead of the shoulder. This is used on small profile pistol barrels with an inadequate shoulder diameter |
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My 43X Hush Puppy was delivered to Shark Coast Tactical this past Tuesday and I've since gotten a few updates from the technician, Josh. + I was using the wrong SilencerCo piston--which I already knew from @spin180 's post; Josh pointed this out and said this was likely causing the slide to slam into the mount and not fully return to battery which explains why several times I had to tap the slide home + The barrel that was in there was already the Shark Coast Tactical barrel they make in-house; it was NOT the Zaffiri Precision barrel that they used to use. Josh didn't really have an answer as to why the finish became heavily worn so easily but said he would honor his promise to replace it with another one of their own. + He test-fired the gun with an Omega9K suppressor they have using the correct SilencerCo piston and hasn't had any issues thus far; we talked about the ammunition I was using and he's going to run it with subsonics to further test + He confirmed that I still want him to re-Cerakote the slide, which I do; he said the wear to the underside of the slide was due to the increase thickness of the Cerakote coating and it was normal; they considered leaving the underside/inside not coated but didn't like how it appeared unfinished overall. + He's hoping to complete my gun by early next week and ship it back |
| Im guessing you still have the piston spring installed in the can, have you tried this setup with a fixed spacer in lieu of the piston spring? Seems like that would address the recoil issue with the lock engaged, probably wouldnt be reliable when firing semi auto due to the weight of the can. |