AR-180B Lower Parts Update!

Just got my sample parts from Chuck and I must say, they look awesome. I really like the light park job that he has done on these and the quality is outstanding.

The Bolt hold opens need a bit of a tweak on one bend so that is holding us up a bit. They should be ready to go shortly so get your name on the list by emailing me at rkelley91 at gmail dot com and I will put you on the list.

These parts along with an AR-15 lower parts kit will allow you to populate a Nodak NDS-18S lower without having to buy an AR-180B first.

You can then use that lower on your original AR-180, AR-180B, and Vulcan V-18. Using one on an original 180 will allow you to use standard AR-15 STANAG magazines instead of 180 mags.

Pricing is $125 per set, shipped and insured in the continental US, Alaska and Hawaii slightly higher. No international sales at this time.

Now for some pics of this set in my SBR lower.






A Visit to the GunLab – AR-180 Parts

This past Saturday I  had the opportunity to visit Chuck at and it was an awesome and overwhelming experience. I wished I had taken the time to take more pictures but I think I was a little in shock at all the cool guns, parts, and equipment. By far the best part of the trip was the company, Chuck and Shirley are two of the nicest folks you could ever have the pleasure of meeting.

We chatted at length about his work on the AR-180 parts he is building. The lower parts that he is making to fit your AR-180B and Nodak NDS-18S lowers were at heat treating and should be back this week. Parkerization and final inspection along with one final operation on the springs will finish this phase. They should be ready to ship very soon.

Next up he is working on uppers. We are hoping to have them available in several configurations from flats to complete uppers with trunnions and rails. He sent me some pictures of his solid model of the stamping die he is building.

AR180 Complete Die1 AR180 Complete Die2 AR180 Complete Die3

Trunnions have also been modeled and those should be coming shortly after the upper sheet metal.



I also gave him one of my original prototype AR-180C railed front sight bases and I am hoping that we can get a few of those made.


The AR-180C flat top might become a reality after all!


Finally yours truly with the only picture from my visit, holding an MP-44 for the very first time. I find it astonishing that they were able to crank these out in the numbers they did, with allied bombs dropping all around them, and that the complexity of manufacture I see in this gun was actually a time saver compared to older weapons.



Make sure to subscribe so you don’t miss any new posts.

Full Auto AR-180 Conversion on Gunbroker

I was alerted to this interesting full auto AR-180 conversion by a reader and I contacted the seller to get more information. I had assumed that all conversions used the same system as the AR-18 but my research shows that there are many different ways to get the job done.


This particular gun also brings to light the crazy gun laws that we have to deal with and in particular those surrounding full auto guns in Connecticut.

First lets see how an AR-18 worked.


You can see in this picture that the upper receiver has two tabs that retain the auto sear. A link is attached to the sear that rides along the bottom of the upper and is tripped by the bolt carrier. The sear acts upon the rear of the hammer. The hammer is different than the one used on an AR-180 as is the disconnector, bolt carrier, and firing pin.

This conversion goes about it in a completely different way.








This conversion is on a Howa AR-180 and it has a sear that acts on the front of the hammer. It appears to have a pivot added to the front of the fire control box and you can just make out the pin location in the picture above. The sear has a tail that is tripped by a piece that was welded on to the bolt carrier. It uses all the original 180 fire control parts with the exception of the disconnector and the safety. The 180 firing pin is also retained.

I wonder if this is how the Widowmaker conversions were done?

Now for the Connecticut twist on this story. It appears that those who drafted their assault weapons ban tried to get machine guns classified as assault weapons and in doing so, left the door open for guns that are full auto only. You can’t own a registered select fire weapon (one that fires Safe/Semi/Full) but you can have a papaered Full auto machine gun (Safe/Full). This gun is one such animal. For those that live in other states, it can be converted back to a select fire configuration.

Please feel free to comment about any conversions you have come across. I think this is a very cool part of the history of the AR-180.

Latest Happenings at

I just wanted to touch base with y’all to let you know what has been happening. My new job has kicked into high gear and it has me out of town most weeks and that has the unfortunate side effect of keeping me away from the blog. I am home this week and hope to have an article of substance before I head back out on the road.

A couple weekends ago I found a reasonably priced Mill/Drill on craigslist. Unfortunately it was a 4 hour drive away. I rented a trailer and my wife and I went on an adventure to go pick it up. It had lead a relatively hard life as a drill for an off-road fabrication company and would need a little TLC. What can I say, I am a sucker for a project.

It is a Jet JMD-18 and it is the perfect size for my home shop. Being a round column it will require special consideration to order of operations to reduce the need for raising the head.IMG_0359 IMG_0360

Got it home and it took some doing to get it off the trailer without a cherry picker but we got ‘er done.

IMG_0363 IMG_0365

IMG_0368 IMG_0370

I had originally intended to modify my drill press and use it for small milling jobs so I had purchased a cross slide vise from Harbor Freight but it just didn’t work out. I returned it and picked up a chain fall that allowed me to put this mill on the table.

IMG_0373 IMG_0374

I pulled the spindle apart to get the number off the bearings and put in an order with McMaster Carr. That finished off my weekend as I had to pack and leave town the next morning.


Last weekend the bearings were installed and a run in procedure was initiated.

The head is back together and it runs much quieter.

Cleaning now starts on the table. It stayed locked in one place for years it would seem, so the ways are a little cruddy. A little bit of rust needs to be cleaned off the surface.

Chuck over at the GunLab  keeps cranking out the AR-180B parts and I am hopeful that I will have some kits in my hands soon. Several have emailed me stating their interest and I will be starting up a waiting list. Email me through the contact form and I will put your name on it.





I am also juggling several gun projects myself. I am now on the fence about the 458 SOCOM AR-180B, it may turn into a mid length gas carbine in 5.56. I already have the barrel so it will be cheap but not nearly as cool. I have a Sten MkIII kit that I want to work on after I get the mill up and running. I also want to try my hand an an 80% lower. Not sure which way to go with a buttstock for the AAA SAP. Folder, original, or mill one out of Delrin?

On top of that I have to prepare for a new Advanced Electrical class I am teaching next week and attend a teaching workshop this week.

Brain Overload.



New AR-180B Parts are Coming

Big shout out to Chuck over at who has started work on AR-180B parts. First up is the safety and he has worked out an awesome two piece design.

First some pics from Solidworks.

safetyrev1-300x159 safetyrev1-2-300x159

Here is a video of the safety lever being made.

And a couple pics of the actual part.


Yep, there will be a few available.


The plan is to offer a set of parts that will supplement your AR-15 lower parts kit and allow you to fully populate a Nodak NDS-18S. Previously the only way to do that was to buy a complete AR-180B Rifle and strip out the lower parts. This will allow you to buy a lower, AR-15 lower parts kit, and this lower kit and get a working lower for your AR-180B, AR-180, or Vulcan V18 upper.