The specific modifications done to the Sevigny's Glock 34:
-Sevigny Competition plain black sights by Warren Tactical Series. Note: For indoor specific events, Sevigny Carry Tritium sights.
-Standard factory Glock slide stop lever (replaces extended version)
-Wolff Gunsprings- Conventional 14 lb. recoil spring, reduced firing pin spring, trigger spring (optional change), firing pin safety spring (optional change), steel guide rod (USPSA only) or stock Glock rod with the cap removed (IDPA/SSP division)
-Polishing to trigger parts (if necessary)
-Trigger pull weight 4-4.5 lbs.