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Posted: 4/30/2015 10:46:05 PM EDT
[#1]
If it aint broke...
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Posted: 4/30/2015 10:47:59 PM EDT
[#2]
You're good. You could get adjustable gas blocks and tune down the buffer/spring rate, but if it works perfectly now, then there's no real need to "fix" it.
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Posted: 4/30/2015 10:56:15 PM EDT
[#3]
Quote HistoryQuoted: If it aint broke... |
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Posted: 4/30/2015 11:07:31 PM EDT
[#4]
Quote HistoryQuoted:
You're good. You could get adjustable gas blocks and tune down the buffer/spring rate, but if it works perfectly now, then there's no real need to "fix" it. I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed |
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Posted: 4/30/2015 11:10:51 PM EDT
[#5]
Sprinco's actual recommendation for carbine length systems is RED spring with H buffer. But bear in mind that I have very little personal experience as I have two mid-lengths, both with BLUE springs and H2 buffers.
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Posted: 4/30/2015 11:44:12 PM EDT
[#6]
Quote HistoryQuoted:
I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed Quote HistoryQuoted:
Quoted:
You're good. You could get adjustable gas blocks and tune down the buffer/spring rate, but if it works perfectly now, then there's no real need to "fix" it. I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed Most are these days with the top manufacturers. They open up the ports to make sure they can run underpowered Tula etc. Makes for a hard hitting weapon with 5.56 tho lol |
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Posted: 4/30/2015 11:51:52 PM EDT
[#7]
I've been saying for a long time that people overblow buffer weights here. On my rifles, I've used the following buffers: carbine, H, H2, H3, T2, rifle, JP-SCS with 3 light weights, JP-SCS with 3 heavy weights. They all worked fine. Even on my 14.5" middy! That's supposed to be impossible!
Now, conventional wisdom will say that my rifles are overgassed. They work. AR-15s are just not as finicky as most people will lead you to believe. |
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Posted: 5/1/2015 12:02:14 AM EDT
[#8]
Quote HistoryQuoted:
I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed Quote HistoryQuoted:
Quoted:
You're good. You could get adjustable gas blocks and tune down the buffer/spring rate, but if it works perfectly now, then there's no real need to "fix" it. I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed Most on here know that a 6920 is generously gassed, but I'm surprised a manufacturer would make a middy with a gas port so large it would reliably cycle Tula with a Sprinco red and H3. I've had my Noveske mid choke with stronger ammo and lighter/weaker components. |
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Posted: 5/1/2015 12:30:28 AM EDT
[#9]
I have a factory spring from tapco with a H buffer and my midlength and it has never had an ejection problem with Tula.
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Posted: 5/1/2015 12:45:02 AM EDT
[#10]
I use a Tubb flatwire (20% heavy) and H buffer in my ArmaLite mid-length and it cycles the TulAmmo perfectly. I am looking to try an H2 soon. If that cycles reliably, on to the H3.
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Posted: 5/1/2015 12:49:15 AM EDT
[#11]
Quote HistoryQuoted:
Most on here know that a 6920 is generously gassed, but I'm surprised a manufacturer would make a middy with a gas port so large it would reliably cycle Tula with a Sprinco red and H3. I've had my Noveske mid choke with stronger ammo and lighter/weaker components. Quote HistoryQuoted:
Quoted:
Quoted:
You're good. You could get adjustable gas blocks and tune down the buffer/spring rate, but if it works perfectly now, then there's no real need to "fix" it. I guess I'm just really surprised. The Spingco Red is an extremely heavy spring. I mean it's kinda hard to charge the weapon. Between that and the H3, most factory rifles must be WAAAAY overgassed Most on here know that a 6920 is generously gassed, but I'm surprised a manufacturer would make a middy with a gas port so large it would reliably cycle Tula with a Sprinco red and H3. I've had my Noveske mid choke with stronger ammo and lighter/weaker components. I would prefer for them to drill a smaller gas port, but I understand why they don't. Out of 500 rifles, maybe only a few guys will mess with anything internally. I really like how the heavy buffer and Spring soften the recoil impulse. Are there any disadvantages to heavy springs ? Outside of the rifle bring harder to charge (even with the BCM latch) the bolt slams home with more authority, also because of the pressure against the bolt hold open its a little harder to disengage. |
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Posted: 5/1/2015 12:51:53 AM EDT
[#12]
Quote HistoryQuoted:
I use a Tubb flatwire (20% heavy) and H buffer in my ArmaLite mid-length and it cycles the TulAmmo perfectly. I am looking to try an H2 soon. If that cycles reliably, on to the H3. Cool, I've heard those are good springs. The H2/H3 makes for a very soft recoil impulse. I can double tap easy, even without a muzzle device. |
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Posted: 5/1/2015 12:56:17 AM EDT
[#13]
I picked up a bag of 12 tungstenweights, from SLASH.
H2buffers in ALL carbines. |
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Posted: 5/1/2015 2:33:40 AM EDT
[#14]
Quote HistoryQuoted:
I've been saying for a long time that people overblow buffer weights here. On my rifles, I've used the following buffers: carbine, H, H2, H3, T2, rifle, JP-SCS with 3 light weights, JP-SCS with 3 heavy weights. They all worked fine. Even on my 14.5" middy! That's supposed to be impossible!
Now, conventional wisdom will say that my rifles are overgassed. They work. AR-15s are just not as finicky as most people will lead you to believe. It's not just a matter of working, overgassed will work most all the time. What they can, and do is put more wear on the disconnecter and the hammer and trigger pins. I've had to replace all of those on guns that were massively overgassed. I guess a hammer and/or trigger pin snapped in half is better than a damaged lower receiver though. .090-.110 is a bit much for a 16 inch carbine gas system and a "carbine" buffer. |
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Posted: 5/1/2015 9:55:21 AM EDT
[#15]
I have used std and h buffers with std springs since I've been shooting ARs and never had an issue.
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Posted: 5/1/2015 10:10:32 AM EDT
[#16]
Topic Moved
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Posted: 5/1/2015 3:11:38 PM EDT
[#17]
You want to run the heaviest buffer with the weakest ammo you forsee shooting and having it run reliably. Find that sweet spot and leave it. From your post id say your there. Tula is pretty weak. That is my go to ammo for setting up the buffer /spring.
A16" middy should be a blue, not a red. But if it aint broke........ |
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Posted: 5/1/2015 11:14:46 PM EDT
[#18]
Just ran another 500 rounds today. Both guns ran great. I wanted to go without cleaning and run at least 150 rounds (through each) of steel cased at the end of the range session and both were flawless. I was kind of amazed the 6920 has less recoil than the midlength. It must have something to do with the gas port size.
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Posted: 5/2/2015 12:04:12 AM EDT
[#19]
Quote HistoryQuoted:
You want to run the heaviest buffer with the weakest ammo you forsee shooting and having it run reliably. Find that sweet spot and leave it. From your post id say your there. Tula is pretty weak. That is my go to ammo for setting up the buffer /spring. A16" middy should be a blue, not a red. But if it aint broke........ That's what I was thinking. It's crazy because I couldn't go heavier if I wanted to. |
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Posted: 5/2/2015 12:54:03 AM EDT
[#20]
Quote HistoryQuoted:
That's what I was thinking. It's crazy because I couldn't go heavier if I wanted to. Quote HistoryQuoted:
Quoted:
You want to run the heaviest buffer with the weakest ammo you forsee shooting and having it run reliably. Find that sweet spot and leave it. From your post id say your there. Tula is pretty weak. That is my go to ammo for setting up the buffer /spring. A16" middy should be a blue, not a red. But if it aint broke........ That's what I was thinking. It's crazy because I couldn't go heavier if I wanted to. Vltor A5 my friend. The end is not in sight. 
I'm running a 16" middy with the system. running the A5H3, or as it stamped, -3. Research says it should run with the A5H4, the heaviest guy on the block. Also running the standard Vltor spring. Feels a bit faster than the Sprinco green. Less ....harsh. |
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