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Discussion Starter · #1 ·
I have a question that I would like to post to the community. You all have a great wealth of knowledge... Ok so i stroked the egos now the questions... ;D

I want a carbine in .45ACP. I looked at the H&K that came out a few years ago, but a 10 rnd magazine just does not do it for me. There of course is the Kahr Thompson and well, I never really been a big fan of the "Tommy Gun", plus they are really expensive. So I looked @ what Olympic Arms has and they have an AR that is chambered for .45, but they use Glock mag. Now I have a Glock 21C and I love it. B4 I was deployed I could have gotten some of them long 23 rnd mags, but I had to use the funds for something else. :duh:

Now I found a company Calvery that makes AR lowers with the mag well a little bigger to fit the M-3 Grease gun mag. Now that is something that I would like to do, so will an Oly Upper in .45 fit the Cav lower? If it does how would I put this "Frankenstein Carbine" together. I am not an armourer....

I appreciate any and all of your comments.

Dredd
 

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You can get the HK USC converted to accept grease gun mags or UMP mags:
http://www.hdps.org/htm/5-3-1.htm
If you already have a 1911, you might look at the MechTech carbine conversion kits. I had once and found it to be very accurate and reliable. Of course, you'd be limited to the capacity of the 1911 mags.
 

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I did a lot of research into this and basically decided that 9mm would be an easier "first" gun in a pistol caliber for me. That being said, as much as I don't like recommending people check out ARFcom, there is a good bit of info over there on the subject.

First, I would go here

http://www.cncguns.com/projects/AR45lower.html

If I was going to build one and build it right I would do it this way. It takes grease gun mags. Down at the bottom it explains how you can order one and he will send it off to Richard Thompson at Thompson machine to finish the lower and transfer it to you. I think you will find that most say this is the best thing going right now in an AR45. I still plan on building one of these, I just have a few other projects first.

Here is the .45 FAQ over there

http://www.ar15.com/forums/topic.html?b=3&f=15&t=345390

you will hear about guys running bazooka Bros. Lowers. those look good too but I have heard they can take a while to get and I like the look of the CNC AR45 lower better.

Hope this helps.
 

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That CNC lower is pretty sweet. I like how he solved the mag release.
 

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The CAV lower/OLY upper should be a push pin deal if you use converted G.G. mags.

Bazooka Brothers makes a relay nice AR lower with a converted mag well that takes unmodified G.G. mags.

Not plugging for Bazooka Brothers or anything here but the quality of the three I fondled was spectacular and my friend who owns one is still reporting good things and zero problems with his B.B. lower/Oly Upper build.
 

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Discussion Starter · #7 ·
All,

I really appreciate the information that all of you have contributed. I was unaware of the conversion of the H&K. I knew about the Kriss but that is way out of my price range. The local gun store has one of the full auto that I could rent and shoot. ;D

I am looking at the Bazooka bros. The design of the lower specifically for the M-3 mags looks very promising. I will be calling them next week after the holiday.

Again, I appreciate the responses and the input.

Dredd
 

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Quick question can a HK USC upper be mated to a UMP lower?
 

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I didn't mean buy the Kriss,I meant use the Kriss conversion magazine kits for that AR you mentioned that uses Glock magazines.
 

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Let me know what they say at bazooka bros. For some reason I remember reading somewhere that they were having some good delays in production.

I am also not sure of the process, I know that they take a lower, cut off the magwell then add the M3 grease gun magwell. I am really not sure how they do it and how strong it is.

On the other hand, the CNC gun is billet and the entire lower is designed from the ground up to take M3 Grease Gun mags. I want to say that the price is comparable to the Bazooka Bros.

Now you got me thinking, I will dive in over at ARF and see what the current opinion is on these. I can't ever seem to have an adult conversation over there when talking about AR15s but for some reason they are pretty civil in the pistol caliber forum.

For everyones reference pictured below is the Bazooke Bros followed by the CNC AR45.







 

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Discussion Starter · #11 ·
AZ,

Thanx for the pix, however the BB pix did not post. I really appreciate the information. After some research last nite I am going to look into the CNC product. I didn't know that BB welded the lower. I will admit I am not that keen on welding. I am still going to contact BB next week and find out more info from them. I was hesitant on the CNC because its only completed up to 10% and then you have to send it to another company to finish it. I am not a machinist nor do I have access to a shop. In college I took some shop classes and I was banned from the shop after a few classes and a project, there was an issue w/a drill press... :doh:

Anyway, I sent CNC an email for more info and I will keep everyone posted on this project.

Thank you again for your info.

Dredd
 

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Funny, I went back and looked at it and first time only 1 BB photo showed up. I fixed it again, hopefully it worked.

I too was a little unsure of buying a 10% lower and having to find someone to finish it for me. He has completely eliminated that worry with Thompson Machine. You order a lower from CNC and tell them to send it to TM. TM does there thing (sounds like a do this pretty often) finishes the gun then calls for your FFL. I want to say it is like $85 but I haven't checked pricing in a few months. Guys are happy with both but me, it was a choice between a Superior Arms Lower that had been cut and welded on or a solid piece of billet aluminum.
 

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Just a little more on the HK USC... I don't know what you want to spend but it's pretty easy to do a USC conversion to UMP. Just buy the USC and call Wade at Top Notch. He did a USC to UMP and a SL8 to G36 for me. His work is good and he'll SBR the UMP if you want. You just need to start the paper work and when it gets back he'll ship out the short barrel to you. He does the engraving work as well. All I had to do was buy the gun and the UMP mags.

Here is a pick of my USC/UMP.


 

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Very nice Prizm, what does something like that cost these days? Before and after pics are good too.
 

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Very nice Prizm, what does something like that cost these days? Before and after pics are good too.
I think you can get USC's from $1400 to $1700, my shop has like 3 on the shelf. Depending on how much conversion work you get done it should stop somewhere around $1200 extra. I think mine was $980 on top of the price of the gun. Sorry, didn't take before pics as I sent it off as soon as I bought it. It never spent time at home. I think ump mags are like $65.

Gunner- Wood is good when it comes to gun porn! ;D
 

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Hey fellas can I jump in and ask a question about the ar-45's? Do they really still need a buffer? Aren't they blowback action now? and if they don't need the buffer, can't they have a folding stock?
 

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You still need a method to return the bolt into battery so most manufacturers go with what works and saves development costs. I've seen some conversions that shorten the bolt and use a shorter receiver extension, or none at all. The KAC PDW does something like this IIRC.
 

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Discussion Starter · #20 ·
I got an email back from CNC (Justin). He has some 10% lowers ready for shipment to TM. They are $295 plus $17 for shippment. At TM its $85 for finishing, then an Oly .45 Upper $629 MSRP. Justin also told me me that the Oly upper will fit right into place. So I am gonna pull the trigger on this project on Monday, starting with the lower. There is a gun show here in the Salt Lake City area on the 10/11 Jan. I will be on the hunt for some G.G. mags.

I like the idea of USC to UMP, but I can not afford the prices that H&K go for. Plus I'm not the type that needs a SBR just yet. Right now I am trying to fill my weapons locker with evil black guns b4 the antigun nuts pass laws and restrictions.

Watch; That is a very good questions, because i was getting ready to ask myself.

m118sb; This a clarification question; so if I sound stupid I aplogize in advance: If there is no buffer spring in the stock, after the 1st round is fired the bolt will not push back foward to load the next round? I was looking at ACE folding stocks for this little project. If thats the case then I will go with a Magpul stock (CTR) and pistol grip.
 
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