Use an air compressor and blow it out if you drop it into a sand pit . If it gets gunked up with powder fouling get some polymer safe spray cleaner and flush it out .
Use an air compressor and blow it out if you drop it into a sand pit . If it gets gunked up with powder fouling get some polymer safe spray cleaner and flush it out .
If it makes you sleep better at night, go ahead and toss the money away. He recommends servicing at that interval because it's overly-cautious ("better safe than sorry") and he makes money doing it.
Also...don't fall for the 3,000 mile oil change interval that the oil change shops recommend.
You asked what everyone recommended, ignored the overwhelming "shoot it, and maybe field-strip clean it every now and then" responses, then went searching until you finally found an answer you liked better (and costs more money).
That eminently makes sense to me-as mentioned, be sure you include dryfire triggerpulls as counting towards the total (Todd G's and P30's recommendation for replacing the TRS at 12.5K repetitions).
Best, Jon
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I haven't been recording dry fire pulls at this point, but I am going to start. I'm also going to get at least one more 45C as a trainer. Ideally I'd like three, one for carry/defense, one for training/practice, and one that is vetted and kept in the safe as a backup.
I wish there was some kind of dummy gun that had an LEM trigger to do dry practice with.
To put things in perspective, I would look at modern HK hammer guns (e.g. USP and newer) as a "lifetime gun" for mere mortals. Some here might wear them out. Most will probably never come close.
Best thing you can do is shoot it like you're trying to shoot the barrel out. 50K, 100K, now you're cooking. Prepare yourself, however, for the spares required to support it! A handful of $1-3 springs and roll pins over the gun's lifetime.
We're talking less than ~$100 (hell, maybe less than $50) in spares to support a pistol for 50K+ rounds, which is pretty amazing if you think about it. Beyond the TRS every ~12K pulls as others said, maintenance is the last thing you need to think about with these guns, which is one of the reasons I love them.
Also, the fire control group components never really break on these guns. A number of the components are even produced with MIM, which many look down on (thanks SIG!), but are an example of what's possible with MIM done right. In a perfect world, SIG would source their MIM parts from HK and make their guns great again. (shots fired!)
I've never actually seen any of the FCG parts (sear, hammer, LEM cocking piece, catch, latch, disconnector, etc) break on any HK hammer gun. I've seen well-worn sears and hammers maybe lead to a less than smooth pull, but that's about it. This makes sense considering the simple design of these components; they either move vertically in a linear fashion or rotate just a few degrees around two pins. Not much to go wrong.
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