Here is the way to completely teardown your gun to the bare minimum. Photo creds: KWA forum's very own, aaps59.
For the complete tear down, you will need: A flat head screw driver and/or allen wrench, 2mm allen wrench, 1.3mm allen wrench, a set of punches to punch out pins, some pliers are optional, and a plate or other object to keep your springs, screws, etc safe while working on your gun. You can buy a set of allen wrenches and flat head screwdrivers at any hardware store, such as Walmart-- and a plate or dish.... you can probably find one around the house... LOL
To field strip your gun for basic maintenance:
First, you want to pull the slide back an 1/8 of an inch or so, and push down on the disassembly pin. (part 51)
Holding this button down, go to the other side of the pistol and flick down the disassembly lever. (part 50)
Letting go of the slide will give you access to the recoil spring (part 342), the recoil spring guide rod (part 41), barrel and inner barrel assemblies (multiple parts). This is how you field strip your M9.
Onto the teardown:
To remove the disassembly lever, button and spring, simply flick the disassembly lever the opposite way (up) while holding down on the button, and the button should pop out because of the spring tension. Be careful not to loose the spring attached to the button.
Here you can see parts 50 (disassembly lever), 51 (disassembly button/pin) and 52 (disassembly pin spring).
To get into the pistol's lower frame, start by unscrewing parts 237. These are the grip screws. Four come on the gun, and require either a flat head screw driver or 2mm allen wrench allen wrench to turn. On the PTP, you will need the flat head screw driver, on the PTP Tactical, a 2mm Allen wrench.
Once the grips (parts 3 and 3A) are removed, you will have the pistol looking like this.
Be advised, I've sanded down a portion of my frame, making it look somewhat silver and other parts look black. A normal M9 will be painted fully black, except for its orange tip.
To remove the slide stop (part 341), simply lift up on it, and pull back,
Keep in mind there is a spring under there that retains the trigger pin (part 44) and provides spring tension to the slide stop.
Here are parts 341 (slide stop) and 54 (slide stop spring) all by themselves.
To take off the trigger transfer bar (part 46), first you need to take off the spring underneath it providing tension. (Part 47) or The trigger bar tension spring can be easily squeezed to get it from under the notch it rests.
You may then remove the trigger transfer bar.
Edited by Outlaw1995, 07 May 2012 - 02:41 PM.