cut and paste from a post on :
the MKII 22/45 forum http://www.network54.com/Hide/Forum/message?forumid=52578&messageid=1042701597
the MKII 22/45 forum http://www.network54.com/Hide/Forum/message?forumid=52578&messageid=1042701597
I’m having a slower than usual day at work so I killed some time by writing these ABBREVIATED instructions for the disassembly of the Mark 2 for installation of the Volquartsen Accurizing Kit. Hope someone finds them of use.
Use at your own risk.... Reference numbers follow the Mark II exploded drawing at www.ontargetguns.com. Some of the names I’ve used may differ from what is in your manual, mine is at home in the box.
Tools I used: 2 brass punches (one pin size and one real small one for pushing the wire spring down and a general “pokerâ€), Screwdrivers (grip screw size), Small brass hammer to get any stubborn pins moving, a small needlenose pliers (to help put the sear and sear spring back in), and patience and dexterity.
1. Make sure the gun is unloaded
2. Remove the magazine
3. Field Strip the gun
4. Remove the Grips (A00800-100)
5. Drift out (push out with a punch) the Hammer Pivot Pin (A002605)
With this pin out, the Bolt Release Lever (A04700), the Safety (AN-53), the Hammer Assembly (A01 800, A04900, A01000), and Hammer Bushing (A02505) can now be taken out (here is where that Safety Detent Button will fall out of the safety).
6. To finish at the back of the frame, drive the Sear Pivot Pin (A02601) out and drop out the Sear (A01901) and Sear Spring (A03100). You can leave the Sear Spring Retaining Pin (A02603) where it is.
7. Now to the trigger: Swing the Disconnector (KA011) up and look along the starboard side of the frame by the Trigger Pivot Pin (A03400) to see the pin retaining wire spring (KA04200 in the blow up dwg.). Use a very small punch or a screwdriver and push down on this wire a little behind (towards the rear of the frame) the pivot pin. While you are holding this down, you can push the pin out.
With this pin out, the Disconnector (KA011), the Trigger Assembly (A01200, A20400, A02508), the Bolt Stop (AN-37), the Bolt Stop Spring (A04600; blow up dwg.), and Bolt Stop Spring Plunger (A04300; blow up) can be dropped out. (Note: these are almost identical to the extractor spring and plunger so to avoid a mix-up, save the replacement of the extractor until after you install the accurizing kit.)
You now have your gun disassembled and ready to be reassembled with the Volquartsen parts.
Reassemble in reverse order.
Good Luck!
