Function Reliability Tune Up
The purpose of the Function Reliability Tune Up is to make minor adjustments and corrections to the pistol so that it smoothly and flawlessly chambers, fires, extracts and ejects every round, when fed quality ammo from good magazines as well as to inspect for potential problems. I recommend that the work below be repeated on some regular basis on high use guns. Every pistol should have the steps listed below taken to assure correct functioning and safe operation. In addition some pistols need additional work done (not included in the cost of the Function Reliability Tune Up), such as lowering the ejection port (most pistols made over the last 15 years already have "lowered" ports), re-crowning the barrel (not all factory crowns are bad), polishing the slide bore or rails on exceptionally rough guns, machining the clearance cut in the frame bridge, detenting the slide stop, and other miscellaneous work, such as tuning to run a particular ammo or installing an extended ejector. Because not every gun needs or every customer wants these additional jobs done, I treat these jobs on a "as needed, ala Carte" basis. I currently charge $75.00 for the following work:
  1. Inspect pistol for operation of safeties to verify correct function, fit of barrel & slide, correct operation of fire control mechanism, looseness of sights, plunger tube and grip screw bushings.
  2. Detail strip pistol, clean, dry and inspect all parts for damage, wear, rough surfaces and incorrectly done modifications (such as over polished feed ramp, etc.)
  3. Make the following modifications and adjustments:
  4.  
      Breech Face:
    • Measure width & correct if tight
    • Polish surface of face and sides
    • Deburr firing pin hole
      Chamber:
    • Check for correct headspace
    • Finish ream to clean the walls and cut leade
    • Polish chamber
    • Polish feed ramp on frame and barrel
      Extractor:
    • Cut correct radii on claw and polish
    • Check engagement depth ("spring") and adjust as required
    • Test and adjust tension
      Slide stop:
    • Check and adjust fit as needed to assure proper slide lock back with empty gun
      Barrel:
    • Inspect crown and locking lugs, inspect link pin and stake if loose
      Frame:
    • Check for frame bridge relief cut
      Springs:
    • Test weight of recoil spring and replace if needed with correct weight spring
    • Inspect and replace any other springs as needed
     
  5. Assemble and lubricate pistol, bench test function with dummy ammo.
  6. Test fire.