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Posted: 10/30/2018 12:08:51 PM EDT
[#1]
I was wondering the same.
I have a Colt QC10 lower, with an Aero upper. Was kicking around the idea of putting a CMMG bolt and barrel on it and if it would work. Havent done much other than think about it though. |
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Posted: 10/30/2018 12:16:12 PM EDT
[#2]
I put mine on an NFA lower and I own a QC-10, but it's colt pattern.
You will likely have to file/shave/mill down the mag release since the Guard lower holds the mag lower. Once you do that you'll have slop in the mag. I bought a custom aluminum part on another forum that slides in where the ejector used to be. Works like a champ. That said, if I had to do it all over again.... I'd just buy the Guard and be done. |
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Posted: 10/30/2018 12:27:23 PM EDT
[#3]
Quote HistoryQuoted:
I put mine on an NFA lower and I own a QC-10, but it's colt pattern. You will likely have to file/shave/mill down the mag release since the Guard lower holds the mag lower. Once you do that you'll have slop in the mag. I bought a custom aluminum part on another forum that slides in where the ejector used to be. Works like a champ. That said, if I had to do it all over again.... I'd just buy the Guard and be done. I own not a single Glock, and probably never will 
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Posted: 10/30/2018 2:14:24 PM EDT
[#4]
I have this setup and hope to run it hard this weekend. I've only fired a couple of rounds so far so I can't draw conclusions quite yet.
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Posted: 10/30/2018 3:53:29 PM EDT
[#5]
Awesome, Id be interested in the results.
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Posted: 10/30/2018 5:39:09 PM EDT
[#6]
Quote HistoryQuoted: Thought about that, but I prefer the Colt pattern lower and Im already pretty invested in that with 10 mags. I just want a softer shooting, better host for a suppressor. I own not a single Glock, and probably never will |
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Posted: 10/30/2018 10:06:35 PM EDT
[#7]
Quote HistoryQuoted:
I have this setup and hope to run it hard this weekend. I've only fired a couple of rounds so far so I can't draw conclusions quite yet. |
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Posted: 11/5/2018 12:50:22 PM EDT
[#8]
Ran approximately 250-300 rounds through my SBR this weekend. I'd call it 95% reliable with the occasional hiccup: 1-2 stovepipes, not locking back on empty mag every time, and sometimes locking back mid mag. Overall I'm very happy and looking forward to getting back out there to do some more tinkering to get full reliability.
My setup: 5" CMMG Guard Barrel (Adco chopped) with In Lead We Trust 3 Lug Omega 9K Suppressor KAC SR-15 Buffer (lighter than carbine buffer) Carbine Spring Geissele SDC QC10 lower with ejector removed 
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Posted: 11/5/2018 4:21:29 PM EDT
[#9]
Quote HistoryQuoted:
Ran approximately 250-300 rounds through my SBR this weekend. I'd call it 95% reliable with the occasional hiccup: 1-2 stovepipes, not locking back on empty mag every time, and sometimes locking back mid mag. Overall I'm very happy and looking forward to getting back out there to do some more tinkering to get full reliability. My setup: 5" CMMG Guard Barrel (Adco chopped) with In Lead We Trust 3 Lug Omega 9K Suppressor KAC SR-15 Buffer (lighter than carbine buffer) Carbine Spring Geissele SDC QC10 lower with ejector removed https://i.imgur.com/lxHOG8X.jpg?1 https://i.imgur.com/cjf1IFn.jpg?1 If it's potentially that simple I might go the Guard route and cut down on the recoil of my AR9. Might also increase the chances of a Geissele FCG running in it, getting me back to running the same FCG in every AR I own. Thanks for the info and looking forward to any other tips or findings you come across. |
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Posted: 11/5/2018 5:00:59 PM EDT
[#10]
Quote HistoryQuoted:
Interested in your results. My DDLES Glock lower already has a stamp, so getting a Guard complete rifle to SBR would be another $200 and months of waiting where a relatively simple swap to a Guard upper would be awesome. Quote HistoryQuoted:
Quoted:
I have this setup and hope to run it hard this weekend. I've only fired a couple of rounds so far so I can't draw conclusions quite yet. How difficult was it to remove the ejector from the QC 10 lower? is it a matter of removing just one screw? Thanks. |
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Posted: 11/5/2018 5:16:04 PM EDT
[#11]
Quote HistoryQuoted: Just pulled the ejector from the QC10 lower and slapped the Guard upper on? If it's potentially that simple I might go the Guard route and cut down on the recoil of my AR9. Might also increase the chances of a Geissele FCG running in it, getting me back to running the same FCG in every AR I own. Thanks for the info and looking forward to any other tips or findings you come across. On my old traditional blowback setup I was stuck using a ALG ACT trigger as the Geissele wouldn't work. Being able to use my preferred trigger is a nice pickup. I also ran a 12oz tungsten buffer and heavier carrier. The amount of weight shed by making the swap has been great. Plus the recoil impulse is much lighter thanks to less mass slinging around. I'd like to try a heavier buffer, ideally a JP silent capture spring. |
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Posted: 11/5/2018 10:16:07 PM EDT
[#12]
Quote HistoryQuoted:
That is correct. On my old traditional blowback setup I was stuck using a ALG ACT trigger as the Geissele wouldn't work. Being able to use my preferred trigger is a nice pickup. I also ran a 12oz tungsten buffer and heavier carrier. The amount of weight shed by making the swap has been great. Plus the recoil impulse is much lighter thanks to less mass slinging around. I'd like to try a heavier buffer, ideally a JP silent capture spring. Quote HistoryQuoted:
Quoted: Just pulled the ejector from the QC10 lower and slapped the Guard upper on? If it's potentially that simple I might go the Guard route and cut down on the recoil of my AR9. Might also increase the chances of a Geissele FCG running in it, getting me back to running the same FCG in every AR I own. Thanks for the info and looking forward to any other tips or findings you come across. On my old traditional blowback setup I was stuck using a ALG ACT trigger as the Geissele wouldn't work. Being able to use my preferred trigger is a nice pickup. I also ran a 12oz tungsten buffer and heavier carrier. The amount of weight shed by making the swap has been great. Plus the recoil impulse is much lighter thanks to less mass slinging around. I'd like to try a heavier buffer, ideally a JP silent capture spring. Time to watch for a Black Friday sale or code from CMMG for a Banshee length Guard upper. |
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Posted: 11/15/2018 5:00:59 PM EDT
[#13]
Great info Outrider
Much appreciated |
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Posted: 11/22/2018 11:27:18 AM EDT
[#14]
@Outrider
Any more time on the Guard/DDLES combo? Figure out the stove pipes and/or the mag lock back issues? For the rest of the crew, anyone seen a CMMG Black Friday email or discount code? |
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