Walther P-22 Tech-Tip
Walther P-22 Tech-Tip for cycling issues, our P-22 will not cycle and stove-pipes constantly, this is the easy fix we found for our personal weapons.
DISCLAIMER: ALL SUCH WORK OR MODIFICATIONS ON ANY FIREARM SHOULD BE DONE BY A LICENSED AND COMPETENT GUN SMITH / ARMORER - THE READER/SHOOTER/OWNER OF A P22 OR ANY FIREARM WHICH EXPERIENCES THIS ISSUE OR ANY LIKE ISSUE IS ADVISED TO SEEK PROFESSIONAL HELP. THIS FRIENDLY EXCHANGE OF TECHNICAL INFORMATION BY THE STAFF OF MECHARMOR IS NOT A GUN-SMITHING TUTORIAL, NOR DOES ANYONE AT MECHARMOR TEACH OR WORK AS A LICENSED GUN-SMITH. THE FOLLOWING INFORMATION IS TO BE UNDERSTOOD AS OUR OWN PERSONAL FINDINGS, AND A FRIENDLY EXCHANGE OF IDEAS ONLY! MECHARMOR DEFENSE SYSTEMS AND ITS SUBSIDIARY COMPANIES MAKE NO CLAIMS OF ANY KIND, NOR SEEK ANY REMEDY OR PAYMENT FOR THE IDEAS EXPRESSED HEREIN BY ANY PERSONS OR CORPORATIONS.
DETAILED EXPLANATION STARTING FROM TOP-LEFT PICTURE, LEFT TO RIGHT:
Feel free to copy this information to pass on to your Gun-Smith!
NOTE: The pistol pictured is my own, which was purchased the month Walther came out with this model. It appears the older production runs like mine had less of this cycle issue. My weapon had this issue periodically using Federal ammo, and worse with other ammo brands, but still only periodically until about 300 rounds went through it, then it was fine, even suppressed. After purchasing my P-22, many of my friends and staff here also purchased them over several years. Another friend recently got his P-22, and his has been the worst I have seen to date.
It appears his hammer may even have been a bit larger than mine, this could possibly be from the tooling mold growing over time, or just really poor Q/C at the machining end. This is a known manufacturing phenomenon, be it automobile production, or any other type of metal part production. How these pistols over so many years get by their bench testing is totally beyond me. They recommend the use of CCI ammo, however that made no difference in my own P-22, or this recent P-22. This recent P-22 would not cycle back far enough, stove-piping almost all the time, and would never strip off another round to chamber regardless of the several types of .22 ammo we tried.
This I assure you was pissing us off since this ammo is hard to get now, and way over priced. We also wondered if the new stock ammo we were able to buy was the issue. The .22 Mfg's must be hitting their production hard to keep up with the latest demand, thus it stands to reason their own QC might be suffering. So, against our own rules we broke into our old cache, and the results were the same. NOT 2 consecutive complete cycles in over 200 rnds!
BE ADVISED - EACH P-22 WILL REQUIRE A DIFFERENT AMOUNT OF METAL REMOVAL BASED ON HOW POORLY IT CYCLES. YOUR GUN SMITH WILL HAVE TO DETERMINE WHEN TO STOP REMOVING METAL:
1. Top left picture points to the hammers top edge which is apparently too high and drags dramatically with great pressure along the bottom side of the slide on the way BACK, and even worse on the way FORWARD, slamming the hammers pointed end into the round "safety" Bar-stock like a speed bump! - (SEE Pic 2 & 3, top-right & Btm Left). We used a Dremel w/ a fine grit sanding wheel to break that corner and create a larger radius, fine files can also be used.
After several attempts of light grinding, (do not remove to much on first pass), the pistol that would not cycle at all, (not once), began cycling flawlessly as fast as you could pull the trigger, even with crap Remington ammo.
2. Finishing touches - After another 100 rnds of confirmation tests, we removed the slide and polished the flat area on the under side where the hammer still drags a bit, (SEE Pic above UN-polished) first with a ceramic stone, and then jewelers rouge on a Dremel polishing wheel. Then we did the same to the top edge of the hammer.
In all of our personal P-22 pistols, a few of which were on their way to be ceremonially melted down as a sacrifice to Molek, this treatment, which is little more than polishing parts, saved all of our personal weapons from the fires that would have culminated in a sweet smelling savor of sacrifice - - to us anyway.
Note to a German company who is quickly tarnishing their long standing reputation of excellence with issues as small as this one, -
"What the hell is going on there!"