Chiappa 1887 Disassembly/ReassemblyThe Firearm Blog


Welcome everyone to the TFB Armorer’s Bench! As mentioned in the little blurb, this series will focus on a lot of home armorer and gunsmith activities. In this article sponsored by WheelerTiptonCaldwell, and Frankford Arsenal, I happened to do a little maintenance on my Chiappa 1887 Lever Action shotgun and while disassembling and reassembling, I thought to myself that it may be beneficial if I did an Armorer’s Bench on diagnosing a light primer strike problem. That is what I did for the previous article but I made sure to mention my willingness to roll out a disassembly/reassembly article. I saw a comment that gave me the go-ahead so to speak so here we are! All that being said, let’s dive right into Chiappa 1887 Disassembly/Reassembly!

Disclaimer: It is stating the obvious when I say do not attempt this if you do not have confidence you can. There is no shame in not taking your gun apart. Consult a competent gunsmith/armorer for advice or if they would do the goal you wish to achieve. Refer to the first Armorer’s Bench article So, You Like Taking Guns Apart? where we talk about knowing your limitations.

TFB Armorer’s Bench:  Chiappa 1887 Disassembly/Reassembly

Welcome to our recurring series of Armorer’s Bench which is made possible and brought to you by WheelerTiptonCaldwell, and Frankford Arsenal who are our sponsors. Here, we at TFB hope to inform, entertain, and even inspire any would-be gunsmith or armorer out there. Ideally, with the information I provide and with the help of our sponsors, you can have some useful knowledge pertaining to the conservation and improvement of firearms technology while at the same time sharing experiences and teaching each other new tips and tricks along the way in the comments. Digging deep into what it is to be an armorer or gunsmith has significance but what is important is what those people do to show they’ve earned that title. I am happy to share my experiences and knowledge and hope it is informative!

Make your personal safety a priority:

  1. Practice proper gun safety. Always make sure before the firearm hits your bench that it is unloaded and safe to be handled.
  2. Wear the proper safety equipment. The main one would be safety glasses (decent ones) since parts are often under spring tension and you may work with high RPM tools. Other honorable mentions would be latex gloves or a respirator when working with potentially harmful solvents and oils. Also hearing protection when working with loud machinery or test-firing firearms.
  3. Modifications, alterations, and customizations will void your firearm’s warranty 9.5 times out of 10. Please take that into consideration before attempting any at-home gunsmithing.
  4. If you are unsure about proper safety practices, disassembly procedures, or warranty standards, stop, put down the tools, and consult a competent gunsmith.

Step One: Chiappa 1887 Disassembly/Reassembly

The first thing is first! Safety. Yes, I know safety is boring and so mainstream but bear with me. Make sure your firearm is unloaded. Check the chamber, magazine, and space between. Then check again. As far as PPE, I highly recommend wearing safety glasses at the very least. There is a V-spring in the disassembly that could easily fly out of place.

Note: This disassembly will focus on the receiver internal parts and will not cover the trigger mechanism due to its simplicity.

1887 Disassembly

Step Two: Chiappa 1887 Disassembly/Reassembly

Most of this is made much easier with the help of some form of a work-holding device like a gun vise. The first step is achieved by lowering the lever fully into the forward position. Note the V-spring. This spring provides a spring force to the hammer and carrier/lifter.

1887 Disassembly

Step Three: Chiappa 1887 Disassembly/Reassembly

With the V-spring located we can carefully grasp it with a pair of needle-nose pliers. Squeezing it together will dissipate the spring tension that it normally provides to parts inside.

1887 Disassembly

This allows you to dislodge and remove the V-spring directly downward.

1887 Disassembly

Step Four: Chiappa 1887 Disassembly/Reassembly

With the V-spring out of the way, we can move forward with what I would call a Carrier. The first screw to the carrier to be removed is the one on the left-hand side of the receiver.

Note: This particular screw has been troublesome for years. Under recoil, it will loosen itself and back its way out. I am really lucky that I have not lost it. There are a grand total of three threads so Loctite really does not do much. In my reassembly, I added some red Loctite instead of blue.

1887 Disassembly

Now that the left-hand Carrier screw was removed, we can take out the right.

Note: These screw head slots are very slim. Use the correct bit to unscrew them!

1887 Disassembly

Step Five: Chiappa 1887 Disassembly/Reassembly

Here I am pointing to the Carrier. It should be taken into consideration that the Carrier is a total assembly of three pieces and only two of them are together constantly.

1887 Disassembly

With the two Carrier screws removed the Carrier can be lifted out of the receiver.

1887 Disassembly

Step Six: Chiappa 1887 Disassembly/Reassembly

Now that the Carrier is out of the receiver we can punch out the lever/hammer pin. This pin can be driven out either direction and should be done with a nonmarring punch like nylon or brass if need be.

1887 Disassembly

1887 Disassembly

Below you can see the two grooves in the lever/hammer pin. The grooves correspond with the claws/hooks of that V-spring that was removed earlier.

1887 Disassembly

Step Seven: Chiappa 1887 Disassembly/Reassembly

With the lever/hammer pin punched out, the punch can be removed from the receiver. The hammer and lever will drop free independently so be careful of what is under them.

1887 Disassembly

Note the odd xenomorph-looking shape of the hammer. Well done, John Browning!

1887 Disassembly

There is actually a recess in the front face of the hammer which contacts the firing pin.

1887 Disassembly

Step Eight: Chiappa 1887 Disassembly/Reassembly

From here, using a 5/32 roll pin punch you can punch out the firing pin retaining pin.

1887 Disassembly

I punched it out from the left but make sure to double-check if one side looks easier to punch through over another for whatever reason.

1887 Disassembly

Step Nine: Chiappa 1887 Disassembly/Reassembly

With the firing pin retaining pin punched out, the firing pin and firing pin spring can be removed. They are not under much spring tension at all. The firing pin spring is mainly there just to rebound the firing pin back.

1887 Disassembly

Step Ten: Chiappa 1887 Disassembly/Reassembly

The removal of the Shell Cam and extractors are completely optional as far as cleaning goes. I took off the cam just to clean under it and put some Loctite on the threads since it was loose.

1887 Disassembly

The extractors should not be removed unless it is completely necessary. They are removed by depressing the plunger beneath the extractor arm in order to take spring tension off of the extractor arm. The extractors can then be rocked out of their slot. The plungers are under a ton of spring tension and it is extremely easy to slip off if you are not careful.

1887 Disassembly

Take a Moment: Chiappa 1887 Disassembly/Reassembly

Here I have placed the hammer outside the lever in order to show how it sits. The V-spring and pin are also shown in how they fit together.

1887 Disassembly

Here is the orientation of the V-spring that sets itself in the two grooves of the lever/hammer pin.

1887 Disassembly

Here are all of our parts spread out.

1887 Disassembly

Reassembly Notes: Chiappa 1887 Disassembly/Reassembly

Not to take a short cut but the reassembly of this gun is the same in reverse. I do however have some minor notes to keep in mind. Loctite is my friend on this gun because I have shot the bejesus out of it. Parts come loose after 3000 rounds I guess. I blue Loctited the cam screw since it was very noticeably loose.

1887 Disassembly

Make sure to clean out the firing pin channel since it is prone to collecting and keeping fouling and carbon.

1887 Disassembly

When reinstalling the lever, hammer, and lever/hammer pin, you can insert the lever first with it all the way forward. Then just slide the hammer up through the slot at the bottom of the lever.

1887 Disassembly

When reinstalling the carrier, make sure to insert it in one assembled piece and it helps to line up the screw holes if the gun is on its side.

1887 Disassembly

1887 Disassembly

1887 Disassembly

1887 Disassembly

My personal gun has an issue with wandering Carrier screws so I decided to put red Loctite on them.

1887 Disassembly

Reinstalling the V-spring is going to be the hardest part of this whole thing. With the lever all the way forward and the hammer and its pin installed, take the V-spring and insert it in the same slot at the bottom of the lever as previously mentioned.

1887 Disassembly

Grasp the spring as done before and from there hook the two grooves with the spring while angling the spring v toward the oval cut on the left like below.

1887 Disassembly

Final Thoughts: Chiappa 1887 Disassembly/Reassembly

Well, there you have it! Another successful disassembly of a cool gun. Sure felt good to do this with an old school gun. Hope it is helpful to someone out there or at the very least informative. These guns look a ton more complicated than they are and it is just the best tip of the hat to John Browning who really was not a huge fan of this gun. It was only a necessary evil to him.

1887 Disassembly

As always, thank you for reading TFB! Be safe out there, have fun while shooting, and we will see you next time for the TFB Armorer’s Bench brought to you by WheelerTiptonCaldwell, and Frankford Arsenal! Also, let us know what you think in the comments below! We always appreciate your feedback.

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Author: Joey Webster

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