GunLab (KnownHost) » Parkerizing

AR-180B parts update

Chuck — Tue, 25 Aug 2015 13:36:58 +0000

With the parts coming back from the heat treating company on Friday it was time to get busy getting them finished.

This is how they look after heat treating. This is the safety.

And this is the bolt hold open.

The first step was to run them through the tumbler to remove the majority of the scaling.

After the tumbler they are then bead blasted to clean them for parkerizing.

This is how they look after finishing.

You will notice the different colors. They were parkerized at the same time with the same solution. The reason for the differences is the material , 1018 vs 4130, and the heat treating performed on the parts.

We are working on the spring bending die today and hope to have the parts set up for sale this weekend.

Gun Lab update

Chuck — Tue, 18 Aug 2015 02:15:58 +0000

This is an answer to a friends question about a particular project.

It is good to always keep checking with me. Things can get a little hectic around here. This is the status of the projects here.

1) the MP-44 trunnions test pieces have been completed and sent to the buyer. A few changes need to be made and we are correcting the drawings now.A post coming up about that next.

2) I hope to have the parts to fix the wire edm in this week and have it back up and getting it operational, this is for the mag wells on the AR-10.

3) we are finishing the tooling for the VG1-5 project so spot welding can go on in mass next week. While on the subject of the VG1-5 a new trigger guard stamping die has to be made, to look more like the original one. Still waiting for the heat treated parts to come back. The parkerizing set up is ready to start parking parts.

4) The cetme receiver has been solid modeled and the stamping dies are currently modeled as well, need to finish up the final oddities.

6) The AR-10 lower receiver has been modeled and half of it has been programmed to machine.; The work on the AR-10 lower will start again as soon as I can get the VG1-5 off of the HAAS machining center, need to change all the tooling out to aluminum cutters.

7) The AR-180b upper receiver stamping dies are 98% complete and hope to have them finished tomorrow. We are still waiting for the parts to come back from heat treat for this as well. Then we will start parkerizing them also.

So far That is about it. I am still working on the cnc router, made a new panel this weekend.

VG1-5 update

Chuck — Thu, 04 Dec 2014 04:40:44 +0000

The weapon is parkarized and the wood work is complete. We will be showing it off at the SAR show this weekend. Anyone interested should contact Greg at Allegheny Arsenal he will be handling the sales, it is just easier for me. I will be posting pictures tomorrow, I was busy having fun at a shoot today.

VG1-5 update

Chuck — Fri, 28 Nov 2014 05:26:08 +0000

We here at Gun Lab are working hard to try and complete the first of the VG1-5 rifles in time for the SAR show. To tell you the truth it has been a challenge. The last week has been spent putting together the rifles and testing for fit and operation. We would find one small problem and fix that only to find that it now causes two more problems that need fixing. Once these are worked out they then cause 4 more problems. An example of this is the fire control group. Once assembled in the receiver with the bolt, upper and gas piston the dis-connector would not operate correctly. It was ground down to make thinner this then showed a problem with the trigger spring. We corrected that but then found out the trigger set to high by .040″ and needed to be lowered by the amount which means the the primary and secondary sear needed to be lowered but not by the same amount. This then forced the dis-connector to be the wrong shape and it needed to be re-machined to fit in and operate correctly. Hopefully we will have everything sorted out by Sunday evening.

Fit up is good on the upper receiver, top cover and rear barrel support. Next will be the gas piston.

Other projects that were completed today was the welding up and laying out the parkerizing set up. here is a quick picture of that area.

This first picture is of the tank layout on an old rack that I had. This next picture is after the burner set was welded on it.

More work to do tomorrow.