Air Gun Home :: View topic - My 1377

Crosman140 · Senior Member

Well, we'll see how well I do in making sure to update my post with "Part 02" and so on.

I am writing this as a how-to for any noobs like me that are looking for a little step by step in frame disassembly.

When I bought my 1377 back around Dec. 2008, the first thing I did was pull off the puke brown grips and pump handle and paint them black. I really liked the look with the only contrast being the brass colored trigger, bolt and bolt handle.

But, just like most of you, I really wanted to do more. But my idea of more is not necessarily to spend a lot of money on upgrades, but to do inexpensive self-mods.

As I looked through pages and pages of custom 1377, I finally settled on the idea of a satin finish, unpainted frame.

Here are some pics of the disassembly process. This is my first time taking one of these apart this far. Not really challenging, but some surprise. Wink

Here is the right side with the grip removed showing the trigger (sear) spring and also showing the removable side plate cover to the inner workings held in place with two screws.

And the left side, again showing the trigger (sear) spring.

Getting the side place off is simple enough. I just removed the two screws (both the same size) and carefully removed the plate by prying with a tiny screwdriver all around the edges. What I didn't realize is that the side plate has a "retainer" cast into it that helps hold the safety spring and ball bearing in place. If this is your first time removing this side plate, I recommend you place something about a 1/2" thick under the grip area of the frame to keep it from dropping to the table flush. If you allow it to drop flush to the table, it will press on the safety lever, which will then allow the spring to give way and it will shoot the tiny ball bearing out onto the carpet. Yes, I'm speaking from experience. Rolling Eyes

Here is a close-up of the safety lever, spring, ball bearing, trigger and sear. You can't see the ball bearing in this image, but it is there riding between the spring and the safety lever, which is what gives the lever that "click" when you move it back and forth.

I lifted the trigger out first. You will see in the picture there is the trigger, the pivot pin and a very thin washer.

These are the three parts of the safety that I removed next. Yep, there's that little rascal ball bearing.

And here is the sear with it's pivot pin. Again, there was a touch of factory grease holding the two together. I used the opportunity to do some light polishing on the sear with a fine honing stone.

At this point, it was time to remove the frame by taking out the two screws. Note that the front screw is longer than the rear one.

I didn't take pictures of me working to remove the black painted finish, but here is the tool I used. It cost me a whole $3. Not a bad investment for a tool that became indispensable in this little project. I chose the "fine" wheel instead of the "coarse" and boy am I glad I did. The "fine" was actually pretty coarse, but I really like the finish I got from it on the frame. I mounted the brush in my drill and used a hand vice to clamp the trill to my workbench. This made a pretty good make-shift bench grinder. Wink

After removing about 95% of the paint with the drill and brush attachment, I started in removing the rest of the paint with my dremel tool using sanding cones and small steel wheel brushes. I also used the dremel and sanding cones to remove most of the offset, excess metal left on the edges of the frame when it was cast. One last trip to my drill and wire brush wheel and I have the look I was wanting. I then sprayed it with satin clear coat and then reassembled.

Here it is reassembled. I couldn't be happier with the outcome.

I love the contrast between the black gun parts and the satin finished frame.

Very dramatic.

Just what I was wanting.

Slavia · Moderator

Very nice! And thanks for all your efforts in preparing the disassembly guide - I'm sure it will be used a lot.

Brutuz · Senior Member

Excellent result Cool

AirGunEric · Site Admin

Good stuff. I wonder why we haven't seen more of this? Strange(?!?)