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Posted: 9/23/2014 7:09:36 PM EDT
DI45 built by Ron on a WAR upper. He does amazing work. Quickly got this running despite its unique gas system. I just got it back and haven't had a chance to take it out yet... hopefully I'll be able to this weekend. It'll be interesting to see if turning the gas off significantly reduces how loud it is.   |
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Posted: 9/23/2014 8:28:56 PM EDT
[#1]
What rear sight is that?
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Posted: 9/23/2014 9:33:15 PM EDT
[#2]
Quote HistoryQuoted: What rear sight is that? ...and also it was the only spare rear BUIS I had floating around, haha. I say that because it's a bit unorthodox to use a combo of HK and M4 sights. However, I was surprised to find that with the A2 sight at the carbine position, it actually fits the V-notch of the HK sight rather well.  |
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Posted: 9/25/2014 8:28:16 AM EDT
[#3]
I'll second the fact that Ron does amazing work. I have a pistol length 45 that he built
for me. It's set up similarly to yours but without the can. I have a couple Glock / Kriss mags for high capacity using a Lone Wolf 9mm Lower that Ron modified for the larger Glock Mags but I can use even the Glock 30 magazines. It's absolutely my favorite home defense weapon. 
Dave in Florida |
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Posted: 9/25/2014 8:51:35 AM EDT
[#4]
Did Ron have to modify the valve in the WAR or did it work right out of the box?
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Posted: 9/25/2014 9:34:53 AM EDT
[#5]
Quote HistoryQuoted: Did Ron have to modify the valve in the WAR or did it work right out of the box? The valve worked for my purposes right out of the box. My criteria was simply that it would cycle unsuppressed on the full open setting. My intent was to have the gas either on or off ("off” is leaving the valve between port settings). Ron said during his test firing that it was almost cycling on the reduced gas position, as well. When I get the chance to take it out, I’ll see if the suppressor adds enough backpressure to utilize the reduced port size. I suppose the main challenges for Ron would have been to overcome any leakage that occurs around the valve and manufacturing a new gas tube that fits the WAR upper. I was just surprised with how fast he got it turned around and running. |
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Posted: 9/25/2014 9:40:29 AM EDT
[#6]
Quote HistoryQuoted:
I suppose the main challenges for Ron would have been to overcome any leakage that occurs around the valve and manufacturing a new gas tube that fits the WAR upper. I was just surprised with how fast he got it turned around and running. All he likely had to do was chop the gas tube to length and use his normal gas block. I believe the end of the tube that goes into the WAR upper is just a standard gas tube diameter without the reduced "mushroom" section at the end. |
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Posted: 9/25/2014 9:58:22 AM EDT
[#7]
Thanks for the kind words.
The tube has a slight reduction at the end to fit in the gas valve. The one that they suplied was a loose fit. I made a gas tube that made it a press fit. I also made it touch the back of the valve & the shoulder of the gas tube contact the outside of the valve. In the end a couple contact points to stop gas leakage. |
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Posted: 9/25/2014 10:29:51 AM EDT
[#8]
Quote HistoryQuoted:
Thanks for the kind words. The tube has a slight reduction at the end to fit in the gas valve. The one that they suplied was a loose fit. I made a gas tube that made it a press fit. I also made it touch the back of the valve & the shoulder of the gas tube contact the outside of the valve. In the end a couple contact points to stop gas leakage. Gotcha. Do you normally make your own gas tubes from scratch? Do you use standard diameter tubes or something different? I built my .45 with a shortened standard tube, but for my bufferless stuff, where I need it to be a type of secondary guide rod, I use a 1/4" OD hard ejector sleeve. |
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Posted: 9/29/2014 10:27:54 PM EDT
[#9]
Got a chance to put some rounds through it this weekend. I was shooting Silver Bear 230gr. It functioned well on the full open gas setting. With the can on and the reduced gas port, the action would lightly cycle but invariably result in a stove pipe. Perhaps hotter ammo would make the reduced setting work. However, I doubt it would be necessary... even on the full gas setting there was no gas to the face. In regards to the gas "off" position, it did result in knocking off a decibel or two. You can sort of hear the difference in the video (the first 3 shots are full gas and the last three are gas off)... the difference was a bit more noticeable in person. Also, we were shooting next to a wall, which may have had an effect on sound.  |
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Posted: 9/30/2014 2:22:10 AM EDT
[#10]
What length barrel? I am thinking that a 45 AR is my next build.
MAHA |
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Posted: 9/30/2014 9:11:32 AM EDT
[#11]
Quote HistoryQuoted:
Got a chance to put some rounds through it this weekend. I was shooting Silver Bear 230gr. It functioned well on the full open gas setting. With the can on and the reduced gas port, the action would lightly cycle but invariably result in a stove pipe. Perhaps hotter ammo would make the reduced setting work. However, I doubt it would be necessary... even on the full gas setting there was no gas to the face. In regards to the gas "off" position, it did result in knocking off a decibel or two. You can sort of hear the difference in the video (the first 3 shots are full gas and the last three are gas off)... the difference was a bit more noticeable in person. Also, we were shooting next to a wall, which may have had an effect on sound.  http://youtu.be/ojuywKgBcG0
Quote HistoryQuoted:
Got a chance to put some rounds through it this weekend. I was shooting Silver Bear 230gr. It functioned well on the full open gas setting. With the can on and the reduced gas port, the action would lightly cycle but invariably result in a stove pipe. Perhaps hotter ammo would make the reduced setting work. However, I doubt it would be necessary... even on the full gas setting there was no gas to the face. In regards to the gas "off" position, it did result in knocking off a decibel or two. You can sort of hear the difference in the video (the first 3 shots are full gas and the last three are gas off)... the difference was a bit more noticeable in person. Also, we were shooting next to a wall, which may have had an effect on sound. http://youtu.be/ojuywKgBcG0
If your gas port is the corect size there is no real port noise. It sounds louder to shooter because you hear the spring/buffer cycle. The gun presed into your jaw & the sound/vibration is transmitted to your ear. Not an expert but that is how I see it. For a real test I always have someone else shoot it & listen from a few feet away. If I hear a pop from the action the gun is running too hot. Not an issue with my 45s. Any obstructions around the supressor will add sound bounceback. So will humidity. With the gas off it will be a little quieter. I think its becase all the pressure/heat goes through the can. Quoted:
What length barrel? I am thinking that a 45 AR is my next build. MAHA 10.5". I build a ton of 7.5' uppers for supressed use but if you can deal with a longer brl it will be a little/alot quieter depending on caliber. Longer brl means lower muzzle pressure for the can to deal with & alot less unburnt powder producing heat. |
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Posted: 10/12/2014 12:48:06 AM EDT
[#12]
I got one of Ron's first DI45 years ago. Mine runs great. F/A is so smooth. Totally opposite of the 9mm blowback AR. No comparison.
Ron is always cool to deal with. The new billet lowers are GTG. 
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Posted: 10/13/2014 9:37:35 PM EDT
[#13]
Quote HistoryQuoted:
I got one of Ron's first DI45 years ago. Mine runs great. F/A is so smooth. Totally opposite of the 9mm blowback AR. No comparison. Ron is always cool to deal with. The new billet lowers are GTG. http://i1324.photobucket.com/albums/u601/SLRrifleworks/DSC_67012_zps35de203f.jpg 100% Jealous right now |
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Posted: 10/14/2014 10:38:49 AM EDT
[#14]
Quote HistoryQuoted:
Gotcha. Do you normally make your own gas tubes from scratch? Do you use standard diameter tubes or something different? I built my .45 with a shortened standard tube, but for my bufferless stuff, where I need it to be a type of secondary guide rod, I use a 1/4" OD hard ejector sleeve. Quote HistoryQuoted:
Quoted:
Thanks for the kind words. The tube has a slight reduction at the end to fit in the gas valve. The one that they suplied was a loose fit. I made a gas tube that made it a press fit. I also made it touch the back of the valve & the shoulder of the gas tube contact the outside of the valve. In the end a couple contact points to stop gas leakage. Gotcha. Do you normally make your own gas tubes from scratch? Do you use standard diameter tubes or something different? I built my .45 with a shortened standard tube, but for my bufferless stuff, where I need it to be a type of secondary guide rod, I use a 1/4" OD hard ejector sleeve. Sorry I missed this. I use std gas tube but make 4 out of a rifle tube. Quoted:
I got one of Ron's first DI45 years ago. Mine runs great. F/A is so smooth. Totally opposite of the 9mm blowback AR. No comparison. Ron is always cool to deal with. The new billet lowers are GTG. http://i1324.photobucket.com/albums/u601/SLRrifleworks/DSC_67012_zps35de203f.jpg Thanks Todd. The lowers realy turned out nice & I am yet to have to do anything to a mag but cut the mag catch. |
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Posted: 10/17/2014 1:04:48 AM EDT
[#15]
Yeah man Ron.. I just ordered 4 more of these this week. Everyone who shoots it has to have one. Get busy Ron...
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Posted: 10/17/2014 9:37:37 AM EDT
[#16]
Quote HistoryQuoted:
I got one of Ron's first DI45 years ago. Mine runs great. F/A is so smooth. Totally opposite of the 9mm blowback AR. No comparison. Ron is always cool to deal with. The new billet lowers are GTG. Significant enough to offload my M11/9 with Lage Max-31mkII for a RR or DIAS? |
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Posted: 10/17/2014 8:22:04 PM EDT
[#17]
That is a toughie.............
 ........... I build pistol caliber uppers (DI and Blowback) for a living..........and love the platform......but the Lage is a beast as well......I'd go semi and see how I liked it .....my policy is once it is in my personal safe....it's MINE  For new FA toys....take a loan.......I guarantee it'll appreciate ....you buy a new car and expect to loose 60 cents on the dollar after 5 years......buy full auto and it will have appreciated after 5 years.......they are toys yes....but they are also a very sound investment.
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Posted: 10/27/2014 8:26:34 PM EDT
[#18]
That's an incredibly cool build. I had considered doing this but changed plans because WAR uppers were back ordered. :/
Glad someone else made it work! |
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