Parts wanted and for Sale!

Looking for G-43 fire control parts. Hammer,trigger,sear. This is for one of the projects we are working on. A friend of Gun Lab has helped out with this. Thanks

Continue reading Parts wanted and for Sale!

VG1-5 Preorder Now Available!

We are now taking reservations for out reproduction VG1-5 rifles! Price is $4000, and they will be ready to ship once ATF gives final approval on the design. The get on the priority list, contact Matt or Greg at Allegheny Arsenal – (814) 362-2642. No payment will be taken until the guns are ready to ship.


Update on the VG1-5 project

We have been working on the fire control group and once again have made a few changes for more reliable operation and safety. We continue to have issues with the disconnector operating properly. There were issues with the hammer spring improperly contacting the disconnector. An additional problem came about with insufficient spring pressure to hold it in it’s proper position.

This is the old style of disconnector compared to the new style.


The old version of the fire control group. There was a great deal of problem to get the disconnector to work properly.


DSC_9850sThe part as laser cut

DSC_9851sSolid models of the fixture.



Assem11fixture for machining the disconnector.



After the first machining operation


The finished part with cut outs for the hammer spring and

DSC_9875sFrom start to finish now to de-bur and heat treat.

DSC_9876sThis is the fire control group with the problems worked out.


Working on the stock duplicator

The time has come up that I need to get back to doing more stock work. There is the VG1-5, the Gerot 05 and I really want my Scotti X working. All three of these projects require the stock duplicator to be working.

DSC_9786sI had it set up but the dust collector system was not hooked to it. To say that it made an enormous amount of saw dust would really be an understatement.  So it was off to take some measurements and a trip to the sheet metal shop to make a funnel arrangement.

DSC_9776sThis was actually the easiest part of the project. I now had to get a sheet metal housing into a spot that had cross bars and was an exact fit.

This was accomplished by partially disassembling the duplicator and carefully moving the funnel in. Keep in mind that the duplicator is cast iron and really heavy, so we did not want it falling on anyone. With a great deal on determination it was finally accomplished.

DSC_9788sThe funnel assembly set perfectly on the lip of the duplicator.

DSC_9790sWhen the foot pads are installed and the unit raised the alignment between the dust collector sweep and the sweep that will go on the funnel  should be spot on.

DSC_9793sSoon it will be back in service.

3D printer completed test print

After the problems that I came across during my initial test print it was back to the drawing board to correct everything.

The first issue that needed correcting was the positioning of the nozzle over the wiper. The was corrected by going back to the documentation that Orin had sent me on the Cubex duo.

Course 3.4 labeled setting up the print tip wiping system gave a good run down on the corrections necessary. I did not have to do the complete progression of steps. All that was needed in my case was to go to the off sets menu.

DSC_9783sThen put in new off sets that would move the nozzle back far enough.

DSC_9784sThis alone corrected the nozzle smearing problem.

The second problem that I faced was the material not sticking to the table. To solve this issue I dropped the glue and put blue painters tape down instead. This actually worked and allowed easy removal of the printed part.

DSC_9785sHere is a video of the printing of the test block.

This is what the final part looked like.

DSC_9657cwsA close up of it.

DSC_9664csI have a list of projects for the 3D printer. Some of the solid models are completed and will be printer in the next few weeks, like the AR-16 pistol grip, and some are in the modelling phase and will be printed upon completion of the models, like your project John P.



Full auto pistols prototypes part 1

In the world of full auto pistols some stand out a great deal. The Mauser Schnellfeuer is probably the most famous.


Following it are the Russian Stechkin.


Then the Astra model 904 and a variety of Star pistols.

This is one of the many prototypes that has been made over the years that actually never went past a single model. I had the opportunity to examine and photograph this weapon a few years back.

A right hand view

visser 097csLeft hand view

visser 096csMoving the front grip down converted it to full auto

visser 098cs

visser 099csA view of the pistol and magazine.

visser 100csClose up of the magazine

visser 101csThe back of the magazine

visser 102csThe things I remember most about this pistol is how heavy it was and how uncomfortable the grip felt.


More work on the CNC router

Most of the machining has been completed on the two side panels. This is how they looked in the solid model.

router table4

router table2And this is how they turned out.


DSC_9759csWe still have 6 holes to drill on each plate and 12 hole to tap on each plate.

With any luck I will have them mounted and I will be able to start wiring it back together again.

More work being done on the cnc router

With the wiring completed on the angle connector plate

DSC_9641sThe next item to be made is the side panel. This is where the fans and angle plate attach to.

router table4These are the pictures of it being machined on the HAAS machining center.

Everything starts as a solid model and then a drawing to work from.

DSC_9721sEven with solid models and drawings the components are checked for proper fit.



DSC_9720sThe side plate will be completed by today and this weekend installed on the machine and I will commence wiring everything up.

3D Printer update

When we received the new 3D printer and some of the plastic support pieces were broken. I did a post about making the new parts. Then when we tried to operate it we noticed that the over travel switch did not work on the Y axis. There are still spare parts so a new wiring harness was ordered and received this last week. The old harness was removed.

DSC_9643sand a new one installed.

The problem with the Y axis over travel switch was the set screw had damaged the wire. It had been improperly installed at the factory.


Spare switches were also ordered in case repairs are needed in the future.

DSC_9662sI completed the first test print and actual part print on Sunday. There were a few set backs but nothing serious.

The first issue was that the filament is old and gave me a few problems feeding.

DSC_9648wsOnce this problem was corrected the next issue was the nozzle placement over the printer tip wipe. It was not going back far enough. A quick search on the internet as well as looking at the cube x courses, along with Orin’s help,  and a solution was found and implemented.

This is my first test print which went totally wrong.

The final product did not come out.


The next post on the 3D printer will cover the corrections and the final test print that was completed.

CNC Router update

With the temperatures souring this last weekend most of the projects that were accomplished were done in the house with it’s A/C going.

In this case I continued the fun that I started the weekend previously. All the connectors have been installed and soldered on the angle connector bracket.DSC_9377csBy the end of last weekend I had finished just a few of the plugs.

DSC_9555csBy Saturday night the entire block was connected up.

DSC_9641sOnly one wiring harness had been completed by a week ago. I then completed the next two wiring harnesses.

DSC_9642sThese have the pig tails made up so I can wire them into the new control panel that we built and I wrote about.

DSC_8904sThe next major components to be finished on the router are the new side panels.  Maybe next weekend.

Working on the CNC router

In the last update on the router I showed a picture of the milled angle plate that was made here.



DSC_9377csThis weekend I started wiring up this block. I first tried using solder connectors. With out the proper soldering iron that turn into a disaster. After ruining a number of 9 pin connectors due to excessive heat I gave up.

The next approach I tried was using crimp connectors. For this I bought a crimp tool, special wire and insulation, and male and female connectors and pins.


DSC_9549sFor some reason the crimps would just not come out correctly.

DSC_9550csAlso the female connectors had no stop in them. This meant that if you were not careful the wire would go into the connector  thus not allowing the male plug to go in all the way.


This process was more aggravating then the first one. So, it was off to Fry’s electronics to buy a new crimping tool. No such luck. There was no crimping tools at all, however they did have a large selection of pencil tip soldering irons.

DSC_9557sWith a new pencil tip soldering iron in hand I set up a little work area on the dining room table. Not really to my wife liking, however it was hot in the shops so she did not fight it much.



DSC_9519sAfter a couple of hours trying to get in a mode and working out all the bugs in the procedure I finished 1/2 of one plug. With 12 plugs to do I couple be dead for really old age before I finish this one step.

DSC_9520sA new system needed to be implemented.

DSC_9542sI first cut wires to length and strip the ends

DSC_9546sThen I soldered the ends

DSC_9547sThen I installed and soldered them in the plugs.

DSC_9555csThis whole process was a little nerve racking and when I finally got a procedure that I liked the tip went out on the soldering iron. Now new tips have been ordered and I hope to be back on schedule this next weekend. Only 12 more sets to install.

I also made up the first of four wire hook up circuits to go from the control panel to the angle junction block.

DSC_9554sThis coming weekend looks to be a fun one. By the way no video on this phase of the project, the foul language would have given me an X rating


The pictures of this  rifle was sent to us from Mr. H.F., a friend of gun lab.

This AR18S made by sterling for Armalite Costa mesa.  This and a AR180 were the first two sterling guns into USA.  Difference from an American AR18S:

  1. Serial number is AS033 – their meaning Automatic Shorty…033rd gun made, not 33rd Shorty.  The only gun in USA with that type serial number.  A=Auto,  S= semi and this one.
  2. Top receiver stamped AR18S , not like the American AR18S where nothing to mean a shorty.
  3. the barrel is about an 1 inch longer
  4. different style flash hider
  5. Flash hider has a front sling rotating clip
  6. Op rod has a sling clip on it.
  7. straight pull charging handle
  8. the Front pistol grip has a different style screw in block.
  9. A tad different, front hand guard cap

AR18s-2cThe selector and markings

AR18s-3The different type cocking handle

AR18s-4cBarrel proof markings

AR18s-1The different British style flash suppressor

AR18s-5cFire control group

AR18s-8cSee how the “S” is marked

AR18s-7Manufacture markings

AR18s-6A close up of the selector markings



AR18s-9Thanks for sharing these pictures of a rare and beautiful rifle