The UltiMac, a modular Mac upper.

[rybread]

Looks great!

 

[LGustin]

I have been away from the site for a long time and decided to check in to see whats been going on. WOW!! Very nice work. I will be emailing you shortly to get on the list. Whats the current lead time for an upper? I have a M10 with UZI conversion and would like a 5.56/AR15 and/or 7.62/AK upper. Keep up the great work.

 

[Silveradot]

Very cool

 

[MACchat]

theredneckengineer 2020

 

[Tony-Ri]

Is .22LR still in the cards? Will a Ciener/CMMG setup work out of the box or with a modified recoil system, or will we have to wait for a unique 22 upper? I might want to get a second upper for 22LR anyway!

 

[Deerhurst]

Is .22LR still in the cards? Will a Ciener/CMMG setup work out of the box or with a modified recoil system, or will we have to wait for a unique 22 upper? I might want to get a second upper for 22LR anyway!

Since it uses an AR BCG, per the first post, I would be inclined to say a CMMG kit would work. Sounds like a ton of fun to me!

 

[theredneckengineer]

Is .22LR still in the cards? Will a Ciener/CMMG setup work out of the box or with a modified recoil system, or will we have to wait for a unique 22 upper? I might want to get a second upper for 22LR anyway!

The Ciener/CMMG drop-in kit is closed bolt and my upper is open bolt, so it would not work without a number of modifications.
Unfortunately, it (22 conversion) will probably require a custom bolt arrangement.

 

[theredneckengineer]

theredneckengineer 2020

It would never work.
- I work for a living.
- I hate wasting money.
- I have actually read the Constitution.

 

[strobro32]

I'm going to steal that.

Any pics of the M11A1 proto? I'm ready for a good drool.

 

[Deerhurst]

- I have actually read the Constitution.

That one there is an immediate disqualifier for any government/elected office!

 

[colossians323]

I was sick with the flu for a bit but I'm finally getting back on my feet.

Just for grins, here's the updated non-reciprocating charging handle UltiMac receiver.



View attachment 35554

View attachment 35555

Wonder if you had the wuhan flu?

 

[ecestu]

I was sick with the flu for a bit but I'm finally getting back on my feet.

Just for grins, here's the updated non-reciprocating charging handle UltiMac receiver.



View attachment 35554



View attachment 35555

Feeling better?

 

[theredneckengineer]

Feeling better?

I am, thank you.
If I could just get my "day job" to slow back down, I'd be in great shape!

Some folks have asked for more pictures, so here's some different stuff I have been making. Charging handles, magwells, etc.

And yes, Strobo, there's progress on the M11 "baby ultimac". I'm waiting until the design is exactly how I want it before I release pictures. :beer

Charging handles



AR15/M16 magwells


Ignore the old AR15 magwell in this picture, it was one I used for beta testing but I have modified the design slightly.

 

[rybread]

Very nice!!!

 

[LGustin]

Looking good. Can’t wait for my name to be called. Got my barrels, bolts and hand guard ready to send to you.

 

[strobro32]

Tease.

 

[llamasabound]

My standing offer for T&E remains! Bear in mind I have no social media accounts, no online influence, and at most a handful of friends who could be motivated to purchase.

But it seems crazy not to throw that out on the table anyway!

 

[theredneckengineer]

Tease.

Yes, I know. I'm a terrible person for holding out on you.
It will be worth the wait in the end.

 

[strobro32]

I believe you.

 

[Offmarksman]

Looking forward to the baby Mac upper too...