[HKSIGslinger]

I once knew the answer but have forgotten and I can't find the info anywhere. So here I am! When should a USP Tactical Recoil assembly be replaced when shooting suppressed? Specifically the 9mm Tactical. I believe it is at the 1,000 round mark but I can't remember. I'm at 1,200 rounds through my USP 9 Tactical since picking it up in February and the pistol is beginning to get really sluggish when returning to battery. I've even had a couple failures to feed. So, when is the recommended replacement interval for the recoil assembly/spring? Thanks guys and gals!

 

[HKSIGslinger]

Anyone?

 

[JonFrost]

I've never shot a suppressed gun but it sounds like your guns performance answers your question. If your having issues I'd replace it and see.

 

[estesmonkey]

Not certain so I will follow this thread but 1k seems pretty low to me. I certainly hope it is not every 20 boxes. That can be costly for those using a can for sporting use.

 

[HKSIGslinger]

I was hoping to get a longer service life out of the recoil spring assembly as well. Those babies are $100 a pop!

 

[The Sarge]

I advise calling HK Customer Service and ask them. Bill

 

[Kost]

I advise calling HK Customer Service and ask them. Bill

^^^^ This!

 

[Crashmc]

Anyone?

How much does your suppressor weigh ? Does it have a piston ?

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[ecsuser-closed]

I was hoping to get a longer service life out of the recoil spring assembly as well. Those babies are $100 a pop!

Is your suppressor one of the 2 models approved to be used with your Tactical?

https://www.youtube.com/watch?v=WQ1sQmGg23M

 

[vjb.knife]

I have never changed this spring assembly out in either of the USP's that I currently own or the older one that I recently sold, and their performance is perfect. I do not shoot suppressed but I put upwards of 50K rounds through my older USP 40 and no issues. Changing that spring assy out after only 1200 rounds is crazy-talk; suppressed or not. I don't believe that is what is causing you problem, but you could just change the springs on your existing rod for about $20. At least that is more reasonably priced. Clean your pistol more thoroughly and check your magazines. Maybe change the ammo you use, but I doubt that is the problem. I run every kind of ammo out there including my own reloads and never have issues with HK pistols.

 

[HKSIGslinger]

I may give HK a call. I really am curious what the recommended service interval is.

Suppressor is an Octane 9 HD. I don't have the HK "approved" cans. My pistols are meticulously maintained so no issues there. I know it needs a new recoil spring assembly, was just curious what others have seen in regards to service life running suppressed. I have seen where vendors offer the outer spring of the assembly but I have yet to see a replacement inner spring. 1,000 to 1,500 round replacement intervals doesn't really bother me, I just wish the assemblies were cheaper. Haha I can get a 3 pack of factory 226 recoil springs for $20. Oh well, it's something you have to do or you risk frame damage and my USPT is my favorite suppressor host. Ammunition I run in my suppressed 9's is federal 147gr factory loads. As for accuracy my USPT loves this ammo.

 

[Crashmc]

^^I hear ya. You're on your own as far as factory support. It amazes me people don't understand that the suppressor manufacturer and the pistol manufacturer have somewhat of an adversarial relationship. The better the suppressor works the more mechanical energy for the pistol manufacturer to deal with. That's one reason I'll never suppress a tilting barrel. They don't like hangin' sh*t off the end of 'em .

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[HKSIGslinger]

It just sucks that HK manufactures pistols that are such superb suppressor hosts yet are so anal about the suppressors used on them. That topic has been discussed on this forum at length though so no sense in rehashing that subject. Bottom line is that the "approved" cans are old, dated tech and every other pistol manufacturer who offers suppressor ready pistols don't seem to care what you thread on the muzzle as long as it's a quality factory made suppressor.

 

[Crashmc]

It just sucks that HK manufactures pistols that are such superb suppressor hosts yet are so anal about the suppressors used on them. That topic has been discussed on this forum at length though so no sense in rehashing that subject. Bottom line is that the "approved" cans are old, dated tech and every other pistol manufacturer who offers suppressor ready pistols don't seem to care what you thread on the muzzle as long as it's a quality factory made suppressor.

What really sucks is the suppressor manufacturers DON'T go to HK and develop a system that works. Agree on a reasonable dB level , back pressures ,etc. It just makes sense and protects everybody .

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[estesmonkey]

What really sucks is the suppressor manufacturers DON'T go to HK and develop a system that works. Agree on a reasonable dB level , back pressures ,etc. It just makes sense and protects everybody .

I agree! However, unless the suppressor mfg paid the arms mfg to speak with them constantly on all suppressor designs, it would eat the lunch of the arms manufacturer. Also, if the end result is going to end the same with the same specs of the already approved cans, then the consumer must pay the price for the higher priced approved can and live with a DB or so less reduction. I cannot see arms mfgs jumping to re-engineer their arms for higher rated DB reduced cans. Id they did that, they'd be caught redesigning arms everyday as can mfgs keep redesigning cans and reducing dbs. Catch 22 IMO.
But it certainly would be nice if arms mfgs gave out specs for can mfgs to follow per arm, on what each arm can handle and what each arm required from the cans. Then, it would be a better scenario for all. However, could open a can of worms or devulge secrets arms mfg's do not wish to divulge, or perhaps do not wish to expends funds to even find out themselves. Have they not already done enough to approve certain cans? Again, another catch 22.

Maybe one day we see "licensed" HK cans. :biggrin:

Until then... $1200 arm, $800 saved on a non approved can. I guess you use your savings to replace that arm a bit more often, opr its parts, as no one said an approved can was going to not wear out the arm after x number of rounds anyway.

The perfect world is not this planet... but with mankind being such an old design... wouldn't you imagine there could be worlds out there that might be perfected by now? Lets hope HK distributes to them :biggrin:

 

[HKSIGslinger]

I agree! However, unless the suppressor mfg paid the arms mfg to speak with them constantly on all suppressor designs, it would eat the lunch of the arms manufacturer. Also, if the end result is going to end the same with the same specs of the already approved cans, then the consumer must pay the price for the higher priced approved can and live with a DB or so less reduction. I cannot see arms mfgs jumping to re-engineer their arms for higher rated DB reduced cans. Id they did that, they'd be caught redesigning arms everyday as can mfgs keep redesigning cans and reducing dbs. Catch 22 IMO.
But it certainly would be nice if arms mfgs gave out specs for can mfgs to follow per arm, on what each arm can handle and what each arm required from the cans. Then, it would be a better scenario for all. However, could open a can of worms or devulge secrets arms mfg's do not wish to divulge, or perhaps do not wish to expends funds to even find out themselves. Have they not already done enough to approve certain cans? Again, another catch 22.

Maybe one day we see "licensed" HK cans. :biggrin:

Until then... $1200 arm, $800 saved on a non approved can. I guess you use your savings to replace that arm a bit more often, opr its parts, as no one said an approved can was going to not wear out the arm after x number of rounds anyway.

The perfect world is not this planet... but with mankind being such an old design... wouldn't you imagine there could be worlds out there that might be perfected by now? Lets hope HK distributes to them :biggrin:

You're going to wear some parts quicker than others when running suppressed, "approved" can or not. Just the nature of the beast, however, I wouldn't mind getting more use out of these recoil assemblies. Like I said before I am curious to know how many suppressed rounds people are shooting before needing a replacement and what HK recommends.

Suppressor technology has improved leaps and bounds over the previous 8-10 years thanks to the demand in the private sector. Focusing R&D on building suppressors for specific firearms is a very lengthy and expensive task for both fireams companies and suppressor companies. If the pistol functions fine go with it and keep an eye on critical wear points.

There are only so many ways to make baffles though. I see more integrally suppressed pistols coming out in the next few years such as the Silencerco Maxim 9. I think that's where the market demand will focus once people see the benefits of that system, especially law enforcement if these units are priced right.

 

[Crashmc]

1-You're going to wear some parts quicker than others when running suppressed, "approved" can or not.

2-Suppressor technology has improved leaps and bounds over the previous 8-10 years thanks to the demand in the private sector.

3-Focusing R&D on building suppressors for specific firearms is a very lengthy and expensive task for both fireams companies and suppressor companies.

4-If the pistol functions fine go with it and keep an eye on critical wear points.

1-You understand what the deal is .

2-The " technology " has improved somewhat in dB reduction , but not so much in relation as to how it actually works with a particular pistol, whch leads into 3

3-So true ! It's a niche market . I have heard that HK has put some resources into exploring the use of suppressors on some different HK pistols. I don't know how far it went or if it went anywhere . Which of the 2 manu's has the most to gain ? Well ,since you have to go through the ATF process ( TIME & MONEY )to get a suppressor, it's probably the suppressor manu's that have the upside of the 2. Most people buy guns to shoot because of whatever attributes they find attractive on the gun . Which leads to this, a LOT of people don't see the value of owning an HK . They can buy xyz pistol for $3.98 and be happy ,which is fine by me. How big is the market for shooting HK's suppressed ? Who knows ? The gun industry is very secretive and it's hard to develop any metrics to know.

4 is IT -If the pistol functions fine at first go with it and keep an eye on critical wear points .The RSA and the locking lug, slide around the muzzle and barrel hood ,etc . BUT .......

The problem with ALL of this you are spending ONE THOUSAND PLUS $$$ on something that might NOT work on your pistol . You would think the dealers would have some data on what works with what pistol . If the different suppressor manufacturers don't have some kind of data base on WHO they have SOLD and for WHAT pistol , they shouldn't be in the business anyway.

My solution , like you give a rat's ass ?

These .....electronic hearing protection . Cuts off over 85dB and you can talk while wearing 'em all day long. NO sh*t in the face or mechanical damage to you or your pistol OR Rifle . I was wearing these standing next to the muzzle and facing away by my 16" .308 AR10 platform rifle ( POF 308) with a muzzle break , I flinched a little because of the blast , the noise level was just fine .

 

[HKSIGslinger]

1-You understand what the deal is .

2-The " technology " has improved somewhat in dB reduction , but not so much in relation as to how it actually works with a particular pistol, whch leads into 3

3-So true ! It's a niche market . I have heard that HK has put some resources into exploring the use of suppressors on some different HK pistols. I don't know how far it went or if it went anywhere . Which of the 2 manu's has the most to gain ? Well ,since you have to go through the ATF process ( TIME & MONEY )to get a suppressor, it's probably the suppressor manu's that have the upside of the 2. Most people buy guns to shoot because of whatever attributes they find attractive on the gun . Which leads to this, a LOT of people don't see the value of owning an HK . They can buy xyz pistol for $3.98 and be happy ,which is fine by me. How big is the market for shooting HK's suppressed ? Who knows ? The gun industry is very secretive and it's hard to develop any metrics to know.

4 is IT -If the pistol functions fine at first go with it and keep an eye on critical wear points .The RSA and the locking lug, slide around the muzzle and barrel hood ,etc . BUT .......

The problem with ALL of this you are spending ONE THOUSAND PLUS $$$ on something that might NOT work on your pistol . You would think the dealers would have some data on what works with what pistol . If the different suppressor manufacturers don't have some kind of data base on WHO they have SOLD and for WHAT pistol , they shouldn't be in the business anyway.

My solution , like you give a rat's ass ?

These .....electronic hearing protection . Cuts off over 85dB and you can talk while wearing 'em all day long. NO sh*t in the face or mechanical damage to you or your pistol OR Rifle . I was wearing these standing next to the muzzle and facing away by my 16" .308 AR10 platform rifle ( POF 308) with a muzzle break , I flinched a little because of the blast , the noise level was just fine .

All are good points! Electronic hearing protection is great. I don't have money invested in them but sometimes I use my SureFire plugs that I've had for years in conjunction with shooting suppressed. But that doesn't help the shooters next to you. Many indoor ranges where I live have specific times designated to shoot centerfire rifles because of the noise and concussion which is understandable. With a suppressor, I can shoot my rifles indoors anytime I want There are many benefits to running suppressors, more so on rifles than pistols. I enjoy them and honestly I rarely shoot unsuppressed.

Regardless of approved cans and this or that I believe wholeheartedly that HK's run the best out of them all. I'm pleased

 

[Crashmc]

All are good points! Electronic hearing protection is great. I don't have money invested in them but sometimes I use my SureFire plugs that I've had for years in conjunction with shooting suppressed. But that doesn't help the shooters next to you. Many indoor ranges where I live have specific times designated to shoot centerfire rifles because of the noise and concussion which is understandable. With a suppressor, I can shoot my rifles indoors anytime I want There are many benefits to running suppressors, more so on rifles than pistols. I enjoy them and honestly I rarely shoot unsuppressed.

Regardless of approved cans and this or that I believe wholeheartedly that HK's run the best out of them all. I'm pleased

We're good , you and me are on the same deal . I've got 3 suppressors for Rifles , 1 OSS system and 2 Griffin Armament RECCE's ( 556 and 762 ). I'm just not a big fan on tilting barrels and trying to quiet 'em . The HK USP's and the MARK 23 are perfect candidates for running suppressed ! Call Jesse Teague in HK Repair, he's the head guy and pick his brain . He's also a competitive shooter as well as the head Armorer for HK-USA . I'm surprised more people haven't chimed in on what works for them . It IS Labor day weekend maybe ............ Hang in there !

 

[HKSIGslinger]

We're good , you and me are on the same deal . I've got 3 suppressors for Rifles , 1 OSS system and 2 Griffin Armament RECCE's ( 556 and 762 ). I'm just not a big fan on tilting barrels and trying to quiet 'em . The HK USP's and the MARK 23 are perfect candidates for running suppressed ! Call Jesse Teague in HK Repair, he's the head guy and pick his brain . He's also a competitive shooter as well as the head Armorer for HK-USA . I'm surprised more people haven't chimed in on what works for them . It IS Labor day weekend maybe ............ Hang in there !

I'll contact him for sure! Thanks for the heads up. As said before, I'd be interested to know what HK call normal you know? Approved cans or not. You need pistol suppressors man! I need a Mark 23 in my life too! Haha