Mar

Ruger 10/22 Fire Control Group Assembly

The Ruger 10/22 is one of the most popular rimfire rifles on the market. However, as much as we all love it, there is always room for improvement. This tutorial gives you step-by-step instructions with sharp and detailed images to guide you through the disassembly and reassembly of the fire control group. Use this as a reference to aid you with trigger jobs and installing custom parts…

Before you start, make sure that your gun is unloaded and all ammo is removed from the work area. Then, field strip your rifle as shown in these instructions. Also, you will need a small punch (around 3/32″) to remove the cross-pins, a pair of needle-nose pliers to hold small parts, and I would recommend you use a small vise to hold the trigger housing so you can free your hands.

____________________________________________________________________

DISASSEMBLY PROCEDURE

Step 1: Remove the hammer main spring…

With the safety off, hold the top of the hammer with your thumb while you pull the trigger to release the hammer and swing it forward. Caution: Hammer spring under tension. Hold firmly to avoid injury.

Pull the top of the spring strut to remove the hammer main spring.

If you wish to remove the spring from the strut, compress the spring with your fingers while you slide the retainer clip off in the direction shown (below). Caution: Don’t let the parts fly away.

Step 2: Remove the ejector…

Use your punch to push out the cross-pin. Caution: Spring under tension.

Remove the ejector from the trigger housing…

Step 3: Remove the hammer assembly…

Use your punch to push out the hammer cross-pin.

Remove the hammer assembly from the trigger housing.

Step 4: Remove the bolt stop/release…

Use your punch to push out the cross-pin.

Pull the plate up and to the rear of the housing to remove.

Step 5: Remove the trigger/sear assembly…

Use your punch to remove the cross-pin.

… then pull the trigger/sear assembly up and out of the trigger housing.

Step 6: Remove the trigger return plunger/spring…

Pull the plunger straight out of the hole in the back of the trigger guard and replace the spring if necessary.

Step 7: Remove the magazine catch/release…

Use your index finger to depress the magazine retainer piston while you pull the mag release lever out of the bottom of the housing. You may need to wiggle the mag release a little to get it out.

Great work! You have successfully stripped down the fire control group to a bare trigger housing.

___________________________________________________________________

ASSEMBLY PROCEDURE

Before you begin assembly, make sure you clean and lightly oil all of the parts in the fire control group. Do not leave excess oil on the parts, as it will only serve to attract excess dirt. Replace any of the unwanted or worn parts with new or custom parts and follow the steps below.

Step 1: Install the magazine catch/release…

Insert the retaining piston and spring into the hole on the front face of the trigger housing.

Use your index finger to depress the piston while you insert the magazine release lever from the bottom of the trigger housing.

Make sure the top portion of the mag release lever is in the correct position in the rear of the piston (below).

Test the function by pressing upwards on the mag release lever. It should depress the piston (below)…

Step 2: Install the trigger return plunger/spring…

For steps 2 and 3 it helps to clamp the trigger housing vertically so that gravity keeps the trigger return plunger/spring in place.

Step 3: Install the trigger/sear assembly…

First, piece together the trigger and sear using the cross-pin to hold it all in place. Make sure the spring is in the proper position in its retaining holes.

Carefully remove the cross-pin from the trigger/sear assembly, but don’t let it fall apart (above). Carefully insert the trigger/sear into the top of the trigger housing (below; double arrows) and align it with the correct cross-pin hole (below; single arrow). Insert the cross-pin.

Once it is installed, it should look like this (below)…

Step 4: Install the bolt stop/release…

Place the bolt stop/release plate into the trigger housing from the top. Make sure the plate is flat against the shooters left side of the housing, and ease it into position so the bottom portion comes through in front of the trigger guard.

Align the cross-pin hole in the bolt stop/release plate with the hole in the trigger housing and insert the cross pin.

Make sure the top, flat part of the bolt stop/release plate aligns with the top of the trigger housing (below).

Step 5: Install the hammer assembly…

Place the metal bushings into the hammer axis hole, and place the spring in the correct position on the shooters right side of the hammer (below).

Install the hammer assembly into the top of the trigger housing by lifting the rear of the bolt stop/release plate and sliding the hammer bushing under it (below). Align the cross-pin hole on the trigger housing with the hammer axis hole and insert the cross-pin.

Make sure the lower arm of the spring is correctly positioned inside the notch on the bolt stop/release plate (below).

Step 6: Install the ejector…

Place the ejector into the notch on the top/front of the trigger housing.

Align the ejector’s axis hole with the cross-pin hole and insert the cross-pin.

As you insert the cross-pin, compress the top arm of the spring so that it goes under the cross-pin (below).

Step 7: Install the hammer main spring and strut assembly…

With the safety off, pull the trigger and manually push the hammer into the forward position.

Insert the hammer main spring assembly into the retaining hole in the lower rear of the trigger housing.

Align the top of the strut with the groove on the back of the hammer.

Use your thumb to retract the hammer back into the cocked position, and engage the safety.

Congratulations! You have completed the fire control group assembly procedure. You may now reinsert it into the receiver. Have fun and stay safe out there with your Ruger 10/22.

The Brasstard

posted by admin in "How-To" Tutorials and have Comments (4)

Tags: .22 Long Rifle, Competition, Custom Gun Alterations, field strip guides, Ruger

4 Responses to “Ruger 10/22 Fire Control Group Assembly”

KPB says:

March 30, 2010 at 13:07

Impressive – The best step-by-step manual re. 10/22! One question only (I could have missed the instruction): Is there a particular direction the way cross-pins should be removed and reassembled? For example, the GLOCK cross-pins are removed from port to starboard and reassembled in the opposite direction.
Thanks again for the outstanding instruction article!
admin says:

March 31, 2010 at 10:48

KBP,
Good question. These cross pins are not tapered or notched, so it does not matter which way your take them out… they can come out in either direction. The direction in which I have removed them in the photos above was chosen because that was most comfortable to me. However, you may remove/install them from whichever direction you chose.

Thanks for the feedback!
PMR30 says:

April 26, 2010 at 19:03

EXCELLENT guide with fantastic pictures and instructions.

Thanks very much!
Joe says:

April 27, 2010 at 06:03

These instructions are great. Went together and didn’t have
any problems. Now that I’ve done this, it is really simple.
Thanks so much for this site. It was a real help. I have it
bookmarked.