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kattman

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About kattman

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    Mark Katt

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  1. I found this helpful with mtg diagrams: https://optics-info.com/footprints-on-red-dot-sights/ hope it works/helps kattman from Michigan
  2. Consider the KE ARMS SLT series. These are great feeling triggers and have been holding up in our MPX's as well as blowback AR's. Little to no take up and very short reset IMHO.
  3. For my MPX's I have switched to the IN LEAD WE TRUST open gas plug, which basically allows open access from the gas port in the barrel to the gas opening in the block where the plug goes in. My pistons come out hard as they need to run dry to make the gun run reliably longer. Running dry seems to go against conventional thought process, however if you lube in there it turns to goo in short order. Found this out the hard way at a USPSA match. I would try one of the open gas plugs to see if it makes a difference. ILWT is a great resource!!! Good luck and stay safe.
  4. I also have had the firing pin and channel so gooed up that I had to pull the firing pin out with a needle nose pliers from using to much lube. Each attempt to fire produced a trigger release and a hammer drop noise with a subsequent dead trigger. Clearing the gun by re-charging only produced a same result. It took a bit to clean/clear the FP hole in the bolt, but I finally could see through the channel hole. Used carb cleaner and compressed air. Now I don't lube that area so much. I am shooting three SBR'ed MPX's and continue to learn their little quirks. I no longer use any lube in t
  5. Maybe that forward bolt movement is slightly restricted?????on a fresh round going into the chamber. If the extractor has the rubber O-ring around the extractor spring--try removing the O-ring and firing with just the spring. I had this where the bolt would "almost" go into full battery, enough to allow the hammer to drop, but not forward enough to allow the FP to strike the primer hard enough to discharge. JMHO--something to try?????? Good Luck!! Kattman from Michigan
  6. I'm real interested in the new Taylor Freelance +20 Goliath as well---to see how it functions in the MPX
  7. We are doing the KE Arms SLT-1 triggers in the blowbacks and the SIG MPX's with KNS anti-walk pins. Good luck in Steel and USPSA so far, but hammer face takes a beating. Also we are mostly doing your buffer/spring set-up as well as the TACCOM unit. I am currently experimenting with the CMC 9mm and the ELFTMANN 9/45 for the MPX's and blowback PCC's. Have the CMC in a 45 blowback (and a 22LR upper/SBR). Both these as well as the SLT point out they are PCC capable. Initial tests are GTG with great trigger pull and reset. So far no hammer follow or doubling, but at low round count until ou
  8. https://nextlevelarms.com/product/9mm-speed-brake/ These guys do some M13.5 x 1LH for the MPX and also make an taper adapter for SIG's tapered barrels. Don't know much about the Competition version MPX. All mine are GEN II pistols that are SBR's
  9. Consider the KE ARMS SLT-1 Took the Timney black's out and put the SLT's back in. JMHO
  10. The ILWT replacement screws don't work with the clamp nut "assembly" that has the two nuts on a plate. I have both styles, the other being the individual nuts with flats. I got my replacement parts from SIG direct. ILWT screws work with the individual nuts with the flats style receivers. Sig part numbers: BARREL NUT 1810925-R (this is the two nut "assembly") SCREW, BARREL CLAMP 1810949-R If you order parts from SIG, they will ask for the weapon's s/n Hope this helps---my respectful contribution
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