TAURUS PT709 SLIM SLIDE CAP WITH INDICATOR Included are both plain (simple replacement) and striker indicating versions of the Taurus PT709 Slim slide cap. The plain version is a drop in replacement with no added functionality, and the indicating version uses a spring loaded plunger that is pressed on by the striker (when cocked) to poke a button out of the slide cap, providing visual and tactile confirmation that your ready to rock, for safety of course. Supplies: No supplies needed other than filament for the plain cap. The indicator cap requires a small spring, either from a click pen or (my preference) the flint spring from a used bic lighter. Also a typical 25X1.5mm nail is needed. Print settings: Use standard Fanny Blaster print settings, but perhaps decrease layer height to 0.1mm for the sake of these small parts. Can be printed flat (as is) with supports in the recess for the firing pin sleeve. Can also be printed upright and upside-down, which will afford you a cleaner overall print, especially in the sleeve recess. Just support overhangs but use adequate cooling as this is a lot of dwell time on a small part. Assembly: Cut the nail to 8mm and knurl the cut end with pliers or something. Cut a section of unbound spring to 3.5mm. After cleaning the cover and button, assemble them and put the spring on the nail. Briefly heat the end of the nail and insert it through the hole in the cover, setting it into the button until the spring butts up against the cover with slight compression, holding together until the plastic and nail have cooled solid. Immediately work the mechanism to avoid any other parts binding from being heated and ensure there are no hangups. Install as normal, cycle to make sure there is no interference and that the button protrudes enough/not too much. Make sure that you can still slightly pull the button out, even by a tiny amount, when the striker is cocked. This should ensure theres no chance of the plunger impeding on the striker's rearward travel. DO BE AWARE! As this design currently stands, there remains the possibility that with enough wear, heat, or improper installation, this device could come apart and lodge the nail somewhere in the action.