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Making the AR-180B bolt hold open button

This post is about making the pivot button for the bolt hold open device for the AR-180B.

With no engineered drawings to work from the first item of business to take care of was making a drawing of the part with all the dimensions. To do this we used micrometers, feeler gauges and an […]

Machining the safety shaft for the AR-180B

This is the video of the actual machining of the AR-180B shaft. This is the first op in making this part. From here it will nest go to the mill to have the various flats, slots and holes drilled. Now on to the first op.

With the first op complete the next step is […]

Working on the safety shaft for the AR-180B

Sorry for the late post today. When I finally got home last night I went to the shop to work on the shaft for the AR-180B safety and did not finish until late. This is a quick master cam video on the process to do the first op on the shaft.

Here is the […]

Weekend update 5-31-15

Now as much to chat about this weekend. Spent most of Saturday machining the AR-180B selector second op. The second op is now complete and we will be setting up the Sharps for the third op. The material and tooling is in to start on the safety shaft on the lathe then the pivot button […]

Japax wire edm

I am going to start a series of posts on the Japax wire edm. I am doing this for a variety of reasons. The first is that it is an easy way for me to show Brett, by the way who is a great guy, at McWilliams sales and service , http://www.mcwilliamsedm.com/index.html, what is going […]

Op 2 on the AR-180B selector lever

Saturday I spent most of the day finishing up the second op on the selector lever. Here is a run down of that operation.

Starting with the finished op one part.

A special set of aluminum jaws were machined to hold the selector levers.

With the jaws finished and the parts installed this is […]

Making parts for the AR-180B

We were down to see our friend Rick at http://ar180s.com/ a while back and over the last few weeks during conversation he was interested in if we could make a few AR-180B parts. Why not that’s what we do. So while we are waiting for ATFE approval on the VG1-5 and the machines are kind […]

Weekend update part 2 the metal casting area.

Nothing says fun around Gun Lab like a 3 day weekend. And fun we did have. This post is about the new slab for the metal casting area here at Gun Lab. Last weekend we started digging the footers for the new casting area.

I needed a place for my casting furnaces to go.

So […]

Modifying the spot welder

This is my first water cooled spot welder in the shop. We have used it with good success in the projects that we do here at Gun Lab. However, we needed to make a few modifications to it to allow use to use it more efficiently.

We removed the old lower bar and […]

Why I never use someones reloades

I know that I am going to get a little flack about this post and someone will write how there’s or someone who does reloading make great stuff even better then the major manufactures. First is a short video from SAAMI about testing commercial ammunition.

http://www.saami.org/videos/sporting_ammunition_and_the_firefighter.cfm

Now on to the rest of the story. A […]

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