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M-11 Fire Control Group (FCG) Disassembly

In this tutorial I used a M-11/NINE, the general procedure is similar for all full auto M-11s including the .380 version. M-10s are similar, but slightly different, especially in how the trigger spring sits... you can see videos of MAC 10 disassembly & reassembly by clicking HERE for one version, and HERE for another.

To do basic disassembly of the FCG you will need a small screw driver; but if you want to fully disassemble it including the safety subassembly, you'll also need a hammer and a pin punch set. If you don't know how to take apart your gun and separate the upper from the frame, please refer to the M-11 Field Strip tutorial. MAKE SURE YOUR GUN IS UNLOADED BEFORE DOING THIS!!!!!


Steps 1 through 3
Step 1
A. FCG Retention Pin
B. Trigger Axis Pin
C. Trigger Spring
D. Disconnector
E. Trip
F. Trigger
G. Safety Slide
H. Sear
I. Selector Pin

First get familiar with the color-coded chart I have made above. Take note of the names of the parts and their locations. If you get confused, referring to this chart may help.
Step 2
Lets start by removing the selector axis pin, marked in blue. First use a screwdriver to lift up the FCG retaining wire, marked in purple, so that the selector switch can be rotated to the 12 o’clock position.
The selector switch at the 12 o’clock position.


Once you have it rotated, you can push it out if you continue to hold up the retention wire. If the pin gets stuck rotate it till it moves again.


With the selector pin removed, you should have been able to pull out the following parts.

A. Selector Switch Pin
B. Trip
C. Sear
D. Sear Spring

Step 3
Now lets prepare the trigger for removal.

Before removing the trigger we must release the spring tension placed upon it.

Take your screwdriver and push down on the left spring arm, marked in purple, and pull it away from the bottom of the trigger frame. You must push it far enough down that the hook clears the little pocket under the trigger frame.

If you did it correctly then the left spring arm, colored purple, should be free as shown in the picture to the left.
Now place a finger on top of both spring arms and press down. While pressing down push the disconnector, marked in green, forward so that it unlatches from the right spring arm, marked in purple.
If you did it correctly then the right spring arm should be free as shown in the picture to the left.
Click here to go to page 2 of this tutorial