@Sigma4506 - If you're shooting a Glock or a Mil-Spec AR-15, there are quite a number of resources for you to call upon with regard to preventative maintenance intervals, and I cite some of them in this reply:
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www.thearmorylife.com
If you're shooting a Glock or any Mil-Spec AR-15, I would - given your yearly round-count - encourage you to find and attend an "armorer class" that places specific focus on that weapon. These types of classes are gaining increasing popularity, and will give you an armorer-level understanding your weapon, how to maintain it, and how to address most typical issues that arise. The knowledge disseminated in these classes will even help you when you're actively shooting the gun, as you'll increase your level of mechanical empathy and understanding, often allowing you to either head-off problems altogether or even allowing you better decision-making abilities during live-fire remediation of stoppages.
Depending on the technical "depth" of the course, open-enrollment classes can run anywhere between $100 or so to a the cost of a case of 9x19 range-fodder for a single day all the way to 3-days at right around $1K. It'll be well worth your time and investment, in the long-run.
Check it out for yourself - here's an AR-15 school taught by a known quantity in the industry:
The Ultimate Source for technical AR15 stuff Course Availability our course Shop Our Webstore BCG Inspection Buy Sotar BCG 3 Bore & Gas System Gauge Set Join Our Social Community This is a 2 day in…
www.schooloftheamericanrifle.com
School of the American Rifle, Elkton, MD. 18,734 likes · 665 talking about this. School of the American Rifle is a Technical/Armorers Training Course
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Look at the free knowledge-bombs on both his website, Facebook Group, and YouTube Channel.
A few years ago, I took a single-day open-enrollment class taught by a American Pistolsmith Guild member Dave Laubert (
https://www.recoilweb.com/dave-laubert-defensive-creations-80917.html), who was in-turn a disciple of one of the biggest names in the AR-15 world: the late Pat Rogers.
^ My buddy Brandon took this picture of me without my knowing as I was putting my nose into something or otherwise geeking out....
You can see that the AR I'd brought to the class, an Aero Precision AC-1516" middy, is pretty much completely torn down by that point in the day, with the exception of the upper. I'd purchased the gun specifically to use in the class, to build-up as my "hobby gun."
Soon after this, with wrench-work over for the day, the instructor put on a 30-minute Socratic-method slide-show that took us through the dozens of malfunctions and stoppages that Pat accrued during his years teaching, and this alone jumped me higher on the power-curve for live stoppage reductions than I would have thought possible with only my few years in the hobby.
This wasn't even a true "armorer's class" (nor was it priced as such, for that matter!). We didn't gauge anything, and certainly there were no certifications. It wasn't that type of class, but it was a knowledge bomb, for-sure. And to this day, am still glad I attended - and I'm also looking to take one of those SOTAR classes.
Shooting that much, classes like this are worth it, even if it means money spent and less time on the range.
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If you're by-chance talking specifically about the XDm, I have a couple of resources for you, but unfortunately they are not nearly as comprehensive or cohesive:
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www.thearmorylife.com
I used to carry a Springfield xdm in 9mm (19+1) and I have noticed the springs in a the magazines are weak now (mags loaded to 18 rds) and will not lock the slide back on the last round. I am aware of people saying the springs do not fatigue from storing loaded mags, just from cycling. Is...
www.m4carbine.net
FWIW, my striker and recoil-spring (or RSA) are replaced at 5K intervals on my 4.5-inch XDms, with the 3.8s swapping out at 3K. It's overkill, but it's also cheap insurance at this point in the life-cycle of my guns.
