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

VoronDesign

Voron2 Custom

No

Yes

.2

20%

Recommend using CF Nylon for the modbutton assembly since it's close to the barrel but PETG works fine for the rest. PETG might be fine for the assembly.

The button adapter is a tight fit. I recommend putting it on the handstop from the bottom and pushing up towards the receiver with pressure from the front. Assuming your filament was dry when printed it should have plenty of flex to snap into place. If you want to remove it, use a hex bit through the screw hole and pry up a bit until it rotates out. It will come off without breaking or marring the stock as long as you don't go to town on it.