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Anyone notice that the QA models have more failures to fire than the standard da/sa or the 990. I shot about 2000 rounds through my QA 9mm since I bought the gun. Never took the firing pin out and cleaned it. I started to get some failures to fire, I fact I had three failures to fire. I cleaned the firing pin area, took it apart, and had one failure to fire today shooting about 350 rounds. The rounds have a hit but not enough to fire the round. Anyone else havhing any problems like this? In all the rounds shot through my Glock 17 I think I had one or two FTF, in five thousand rounds. I am making it a routine to take the striker out of both my P-99 and Glocks after I shoot and cleaning the striker chambers and firing pins with hoppes 9, a dental pick and then gun scrubber. I believe this is a must with striker fire pistols. Any thought on this matter?
 

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Cocojo: I'm not sure it's exclusive to QA's. I experienced three FTF in the initial 100 rounds of break-in with what looked like "light" striker marks on the primers in my P99 DA/SA 9mm military. It wasn't the ammo (Fiocci 115gr FMJ), and second strikes fired each time. I only found out later that it's said to be best to do the break in with 124gr "hotter" ammo. I never figured out exactly what was happening. I did notice once or twice that my slide failed to lock forward after ejecting a round (it was off by about 1/16" back), but don't know if that was happening during the FTF's. The problem ceased after about 100 rounds and a thorough cleaning. It has about 1000 rounds through now with reliable functioning. Those FTF's gnaw at the back of my mind! I've never removed the striker but plan to clean that soon.

--jazzbass62
 

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The only failure to fire occurred during the first couple weeks after I bought the QA, all happened on the Fiocci 115g only. Thereafter I'd tried many different brands and weights of 9mm and the problem never recurred. Now it has exceeded 7K rounds and has been reliable all along. I've never taken the firing pin mechanism apart for detail cleaning either.
 

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My P99 has 4000+ rounds with zero malfunctions.
My P99QA has 500 or so rounds with zero malfunctions.
I have had one FTFire, but it was a dud primer, not the pistols fault, the round took some solid hits, from 3 different pistols, and never went off.
 

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I removed the striker module from the slide and cleaned out the cavity with Breakfree CLP using a Q-tip, all the way up to the little exit hole where the striker tip emerges to hit the primer. There was a lot of black gunk in there along with a minor amount of some little flecks of metal. But after examining the striker system, the striker itself seemed to be fairly well isolated from the dirty accumulations in the cavity in the slide. A small plastic toothpick like the "Soft Touch Brushpick" by Dental Concepts, Inc. (get 'em at the drug store) is ideal for detailing the area around the breach end hole where the striker emerges when firing (be sure to wipe dry after cleaning...) I liked the ease with which this assembly could be removed and cleaned - nice design touch. I used the tiny allen wrench that came with the box to depress the detente to get the rear face part off initially. I will now regularly clean this area after every 500 or so rounds...

--jazzbass62
 
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