This kit will allow you to use a Modlite and Modbutton on a PS90. It keeps the package slim and ambidextrous. Should work on any airsoft PS90/P90 with the correct screw pattern. The extended rail is required for the button wiring to reach the light.

Parts needed:

• 7" Modbutton Lite (surefire/modlite) with picatinny removed (unscrew it and it comes off)
• Modlite body with surefire tailcap (PLHv2-18350 + Surefire DS00 pictured)
• M4x35mm button head machine screw (replaces handstop screw, self taps into adapter)
• M3x8mm flat head (head style, not driver type) machine screw (for button adapter)
• M3 threaded heat set insert (for button adapter)
• small zip tie

Update 11-Apr-23

• Reinforced slim extended rail
• I recommend using CF Nylon for the rail. My PETG one broke with some light impacts but YMMV.

Update 26-JUL-23

• Added STEP files

Update 02-MAY-24

• Updated screw size
• Added some example links