I am building my first AR style rifle....
Any suggestions on buffer and spring?
Thanks for your time!
Heavy and stiff. You need about 3 lbs back there including the bolt, and springs don't count. So a 11 oz buffer cuts you down to a 2 lb bolt.
Or, build a true DI upper. 10mm has plenty of gas pressure to run a gas system. Seems like most guys with blowback 10mm AR's complain about chasing brass and having to run 10mm lite, whereas guys with a gas system are very happy.
Good to know. Thanks!
Pablo and I both have 10mm ARs from Ron Williams at RMW Extreme. I have a Quarter Circle10 lower. He has grease gun mag lower. These are Direct Impingement (gas). Several other members have these.
I wanted what I have because I wanted to use "real AR" accessories. Trigger group, safety, Magpul stock, etc. This is main advantage of RMW Extreme. Can run full auto if your local laws allow, mine don't. Probably suppressed too, but you would have to talk to Ron on that.
http://www.rmwxtreme.com/#top (http://www.rmwxtreme.com/#top)
Disadvantages: more time to debug your magazines, because of the AR bolt I think, but I really don't know for sure
The Mech-Tech is blow back and it uses Glock pistol lower or 1911 lower.
Hopefully The Mech-tech owners will chime in. I think main advantage is cost because they are selling you just an upper and the blow-back design is simpler.
Disadvantages: Not really an AR, you are trying up one of your pistol frames.
It's interesting - if you go DI AR, think light. All moving parts must be exactly that, light and free moving. Basically because even though 10mm is relatively high pressure, it's not the pressure and volume of a shouldered rifle cartridge.
If suppressed is allowed it might be worth the stamp as a suppressor will increase the available gas to the gas system without compromising velocity.
Thanks for the input!
I should probably mention I have already acquired a Quarter Circle 10 lower and bolt, Gibbz Arms side charging upper with floating 15.5 inch hand guards, ACE LTD SOCOM buttstock.... Just missing the 16inch barrel, buffer and spring.
While its not a cheap build, it is a quality one!
Almost forgot to mention I have a Rock River Arms lower build kit with 2 stage trigger installed too.
We demand pictures!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ;D :D
Yes, pictures. Working on it....
So here it is.... Waiting on a barrel.
[attachment deleted by admin]
QC10 recalled the bolt, so I am missing that as well.
However, I am impressed the did it on their own volition and are paying for me to ship it back. It's nice to see a company stand behind what they manufacture.
Quote from: sstewart on October 19 2015 08:41:25 PM MDT
Pablo and I both have 10mm ARs from Ron Williams at RMW Extreme. I have a Quarter Circle10 lower. He has grease gun mag lower. These are Direct Impingement (gas). Several other members have these.
I wanted what I have because I wanted to use "real AR" accessories. Trigger group, safety, Magpul stock, etc. This is main advantage of RMW Extreme. Can run full auto if your local laws allow, mine don't. Probably suppressed too, but you would have to talk to Ron on that.
http://www.rmwxtreme.com/#top (http://www.rmwxtreme.com/#top)
Disadvantages: more time to debug your magazines, because of the AR bolt I think, but I really don't know for sure
The Mech-Tech is blow back and it uses Glock pistol lower or 1911 lower.
Hopefully The Mech-tech owners will chime in. I think main advantage is cost because they are selling you just an upper and the blow-back design is simpler.
Disadvantages: Not really an AR, you are trying up one of your pistol frames.
(http://img.photobucket.com/albums/v465/CWLONGSHOT/Temp%20stuff/sporting%20pics/Glock/Mech-TEC/D58FD142-6B37-404D-9762-D001A2890A59_zpsvrkqia9n.jpg)
Love mine!! The bolt is a BIG block of steel!!
CW
Quote from: cwlongshot on October 28 2015 05:34:12 PM MDT
Quote from: sstewart on October 19 2015 08:41:25 PM MDT
Pablo and I both have 10mm ARs from Ron Williams at RMW Extreme. I have a Quarter Circle10 lower. He has grease gun mag lower. These are Direct Impingement (gas). Several other members have these.
I wanted what I have because I wanted to use "real AR" accessories. Trigger group, safety, Magpul stock, etc. This is main advantage of RMW Extreme. Can run full auto if your local laws allow, mine don't. Probably suppressed too, but you would have to talk to Ron on that.
http://www.rmwxtreme.com/#top (http://www.rmwxtreme.com/#top)
Disadvantages: more time to debug your magazines, because of the AR bolt I think, but I really don't know for sure
The Mech-Tech is blow back and it uses Glock pistol lower or 1911 lower.
Hopefully The Mech-tech owners will chime in. I think main advantage is cost because they are selling you just an upper and the blow-back design is simpler.
Disadvantages: Not really an AR, you are trying up one of your pistol frames.
(http://img.photobucket.com/albums/v465/CWLONGSHOT/Temp%20stuff/sporting%20pics/Glock/Mech-TEC/D58FD142-6B37-404D-9762-D001A2890A59_zpsvrkqia9n.jpg)
Love mine!! The bolt is a BIG block of steel!!
CW
That would be the way to go, IMO... no "end user" R&D required!
Ya gotta PAY to PLAY, but when I PAY, I expect to PLAY, not WORK :o
Any update? ;D
Quote from: Pablo on December 30 2015 05:38:51 AM MST
Any update? ;D
Kinda....
Quarter Circle 10 is still testing the 10mm barrels but plan to have them available after Shot Show 16 (end of January)
Otherwise I have everything for the build.
I went with a heavy Wolff spring and a carbine buffer I can adjust from 12.5oz down to 5oz
The bolt and carrier have been returned too.
Edit: Corrected buffer weight
I'm thinking 12" barrel on my Glock 20 is the way to go for a 10mm Carbine. ;D :D :o :-\ - OK I'm kidding
Hang in there!!
Mongo: I like the idea of a "gas operated" 10mm carbine. If you can arrange for the proper amount of gas regulation for the long arm (as does a Wildey gas-operated pistol) It would be perfect! It would also be a nice platform for the 10mm Magnum. i have occasionally wondered how well a 500 S&W Magnum would work if the rim were turned down to make the "Mighty 500" a "rimless" cartridge. Surely the .500 S&W Magnum would make for a marvelous 100+ yard self-loading round.
D'ya think?
Quote from: Pablo on December 30 2015 03:10:05 PM MST
I'm thinking 12" barrel on my Glock 20 is the way to go for a 10mm Carbine. ;D :D :o :-\ - OK I'm kidding
Hang in there!!
I can appreciate that! Especially, with all the issues you are having with the BCG. I wish I could help but I don't have the knowledge or experience yet.
Captain O,
500 S&W carbine would be ridiculous! ....in a good way!
So....
Still waiting on QC10 to finish testing the 10mm chambered barrel.
In the mean time, I have an associate working on the feasibility of a hybrid gas piston system.
Quote from: undeRGRound on December 26 2015 06:13:54 PM MST
That would be the way to go, IMO... no "end user" R&D required!
Ya gotta PAY to PLAY, but when I PAY, I expect to PLAY, not WORK :o
My only issue was crown, and frankly that was mostly looks.
I chose to tinker with the butt.
I never understood your opinion. I like to tinker, I will always tinker to make what ever it is mine.. WE ALL DO!!
Two questions, two of the largest purchase most people make. House and Vehicle. You would be lying to us all OR the most boring person on the planet, if you said both where exactly as the day you purchased them.
It's all in your perspective my brother. ;D
CW
I am sitting in the exact same spot.
I have a qc10 large mag lower (and a .45 bolt)
Was awaiting QC10 to test the system out; They did mention the blowback worked, but they had a few feeding problems....
I think going DI might be a better bet...seems safer if nothing else.
rmw extreme can provide upper to go with qc10 lower. Because I have one in 10mm. He provides the bolt. (complete upper) Also most other calibers also.
Most of these require some tweaking with 10mm debase of mag variability and OAL
I too have considered the di option from RMW extreme but I have the upper I want (side charging) and the hand guards I want. Ron has communicated its an all or nothing system due to proprietary parts. I am dogmatic about not settling at this point. Besides, all the reported feed issues are a big turn off.
Thats right. I believe you will have feed issues initially too. It's a shake down (tuning) process.
Sent from my iPad using Tapatalk
Indeed. It is fun if you don't stress about it.
I have finally installed a 16" barrel and compensator from Kaw Valley Precision.
Pictures and range report to follow.
Its been nearly a year long journey.
Quote from: Mongo on June 09 2016 04:02:02 PM MDT
I too have considered the di option from RMW extreme but I have the upper I want (side charging) and the hand guards I want. Ron has communicated its an all or nothing system due to proprietary parts. I am dogmatic about not settling at this point. Besides, all the reported feed issues are a big turn off.
Then he has changed since he built my upper. I sent him my VLTOR upper receiver and Noveske NSR handguard and he supplied the rest.
(http://uploads.tapatalk-cdn.com/20160905/4acec9049af7d8d62f3445c3aea54a9c.jpg)
Mike D: Nice build!
Osprey can?
Perhaps Ron has changed or I caught him during his shop move and he really didn't want to spend the time to go over the details involved. Either way it doesn't matter at this point as I have a build.
I was pleasantly surprised to see Armscor brass land only a couple of feet behind me. As a blowback, I was expecting the brass to be launched into low orbit.
I had some FTF issues at its inaugural firing but a little polish to ramp and chamber seems to have corrected
it.
Quote from: Mongo on September 18 2016 10:40:55 PM MDT
Mike D: Nice build!
Osprey can?
Perhaps Ron has changed or I caught him during his shop move and he really didn't want to spend the time to go over the details involved. Either way it doesn't matter at this point as I have a build.
I was pleasantly surprised to see Armscor brass land only a couple of feet behind me. As a blowback, I was expecting the brass to be launched into low orbit.
I had some FTF issues at its inaugural firing but a little polish to ramp and chamber seems to have corrected
it.
Thanks I really enjoy shooting it.
Yes sir that's an Osprey 45. Hindsight being what it is, I wish I had gone with the Octane instead.
Sounds like you ended up with a blowback design? If so what setup did you go with?
Sent from my iPhone using Tapatalk Pro
TD! I love mine!
[attachment deleted by admin]