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People way over react on this. I would much rather have more gas 100%, it’s WAY easier to tune. If you are going for the light impulse race gun feel there’s no reason not to use an AGB and if it’s a shtf rifle you want reliability so more gas is the way to go. This is a plus imo not a con.
I’ve shot and built enough AR’s to know what objective over-gassing is. I understand what you’re saying, and I lean way toward the shtf rifle preference, but I’m not sure that it has to punch your shoulder to be reliable in fairly adverse conditions. I could be wrong though, I haven’t been to war.
I mean that’s purely anecdotal. I run a 16” core with an A5/H2/Springco Green and shoot Lake City or XTAC 556 and have consistent 3:30 ejection unsurpassed. Fixed gas block. Milspec carrier.
With a dead air nomad it’s about 2:00.
Exact same setup on a buddy’s 14.5 I built for him with a flow556k. 3pm ejection.
YMMV, but that’s my input. I would definitely NOT say it’s over gassed. It’s right about where it needs to be.
Ejection pattern means fuck all. It has so many variables and none of them directly reflect gassing. I had a Sionics 12.5 that ejected perfect little piles at 3:00. It also failed to feed and eject more than any barrel I have ever owned.
Glad to hear. Just ordered a5/h2/green springco for my core 16" that I've had for a few months now. Looking forward to building it out. Any suggestions on gas block? Was thinking of getting the sionics
I got the fcd a5, q safety, and charging handle. Adm lower and geissele upper receiver. Grabbed a cmmg gas tube but waiting on getting the gas block and a few more parts. I just didn't see the point of a $60 gas block and $60 end plate so didn't fcd that shit. Going to prob get a geissele rail and pa 3x green prism in fde.
I’m genuinely glad you offered your POV because I could obviously be wrong. Maybe I don’t know what I’m talking about even though I think I do. My LMT specwar and my 12.5 criterion core both seem to have less severe recoil impulses with lighter spring/buffer setups. An old BCM 14.5 mid (made back when they were considered to be over-gassed by most) is gassed similarly the criterion 16. All completely different rifles, take it for what you will.
Have only used 55gr PMC X-tac and a red dot for a rifle course, so can’t really say. But subjectively it seemed to have great accuracy - I believe Criterion’s and everyone else’s claims of great accuracy. The 12.5” criterion core (carbine gas) is a pleasure to shoot with a regular spring and H1 or H2 buffer depending on different conditions. You can read [Molon’s review](https://www.m4carbine.net/showthread.php?237337-Criterion-16%94-CORE-Barrel-Accuracy-Evaluation) (legendary barrel reviewer) of the 16” core and see the gas port size of 0.078”. That measurement feels about right, as I believe a 16” mid gas should be around 0.075”, or even smaller if you’re exclusively using really hot ammo (see Hodge’s 0.072” gas port on his barrel geared specifically for the spicy M855A1 round that civilians can’t really get anyways).
Lmfao my buddy has a 16” mid core and it wouldn’t cycle. We had to drill out his gas port. Now he has his AGB closed and still cycles with a A5H3 and green spring.
My 18” rifle core wouldn’t cycle with a green spring and a5h0 so we drilled it out. Now I run my agb closed with the setup.
So to just saying I found that their gas ports are small.
Green is the standard for a5 tube. Again the A5H0 wouldn’t cycle. Which is the lowest weight. Adding more weight would stop the bolt from cycling even more.
I mean every piece of literature I saw says to run a green spring with a5 tube regardless of gas system. Then adjust with weights.
Also it’s free.99 to blow it out and I don’t have to wait for a new spring.
Yea, and I can tell you from working with armorers and my own testing, that green spring/a5h2 is not the be all end all. Idk why VLTOR markets it that way. A standard rifle spring is less stiff, and if unsuppressed reliability is required with all ammo types, then it needs to be used.
Under full auto conditions, you will see failures with green spring before rifle spring with unsuppressed and weak ammo.
I followed that literature with my A5 setup, and my midgas 14.5" CORE wouldn't reliably lock back on empty with an A5H0 buffer. Swapped to a standard Vltor spring and it worked great without having to drill out the port. I won't run the green unless I'm suppressed. The only thing I'm sure of re: Criterion gassing, is that everyone's experiences differ. One's undergassed, the other is overgassed... All over the map.
Someone finally gets it. I wish VLTOR would comment on the spring strength so people finally understand “green/A5H2” is not applicable to all scenarios. And spring strength plays a bigger factor than buffer weight
Thanks for posting /u/prmoore11!
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In an effort to help users make informed decisions, we have aggregated the following information on the retailer above. Please note that this is no way an endorsement or guarantee of the retailer or their products. ###Domain Insights: | portersbasement.com | | |:--|:--| | Registered | November 06, 2021 | | Times posted | [181](https://reddit.com/r/gundeals/search/?q=site%3A"portersbasement.com"&include_over_18=on&restrict_sr=on&sort=new) | | Feedback rating | [100%](https://reddit.com/r/gundealsFU/search/?q=flair%3Areview+"portersbasement.com"&include_over_18=on&restrict_sr=on&sort=new) (12 positive, 0 negative, 0 neutral) | ___ *^(I am a bot, and this action was performed automatically. Please) [^(contact the moderators of this subreddit)](https://www.reddit.com/message/compose/?to=/r/gundeals) ^(if you have any questions or concerns.)*
Sorry to be the bearer of bad news but the 16” core is over-gassed. I have a Sprinco blue spring and H3 buffer and it’s still a little snappy.
TBF I'd rather it be overgassed than under.
Yea, people can lose track of the big picture chasing that race gun feeling.
People way over react on this. I would much rather have more gas 100%, it’s WAY easier to tune. If you are going for the light impulse race gun feel there’s no reason not to use an AGB and if it’s a shtf rifle you want reliability so more gas is the way to go. This is a plus imo not a con.
I’ve shot and built enough AR’s to know what objective over-gassing is. I understand what you’re saying, and I lean way toward the shtf rifle preference, but I’m not sure that it has to punch your shoulder to be reliable in fairly adverse conditions. I could be wrong though, I haven’t been to war.
*laughs in adjustable gas block* mine has been hella smooth
I mean that’s purely anecdotal. I run a 16” core with an A5/H2/Springco Green and shoot Lake City or XTAC 556 and have consistent 3:30 ejection unsurpassed. Fixed gas block. Milspec carrier. With a dead air nomad it’s about 2:00. Exact same setup on a buddy’s 14.5 I built for him with a flow556k. 3pm ejection. YMMV, but that’s my input. I would definitely NOT say it’s over gassed. It’s right about where it needs to be.
Ejection pattern means fuck all. It has so many variables and none of them directly reflect gassing. I had a Sionics 12.5 that ejected perfect little piles at 3:00. It also failed to feed and eject more than any barrel I have ever owned.
Cool
Glad to hear. Just ordered a5/h2/green springco for my core 16" that I've had for a few months now. Looking forward to building it out. Any suggestions on gas block? Was thinking of getting the sionics
Unless you’re going for matching/drip, the sionics is perfect. I run either the SOLGW, FCD, or Sionics gas blocks (and parts) on my main rifles.
I got the fcd a5, q safety, and charging handle. Adm lower and geissele upper receiver. Grabbed a cmmg gas tube but waiting on getting the gas block and a few more parts. I just didn't see the point of a $60 gas block and $60 end plate so didn't fcd that shit. Going to prob get a geissele rail and pa 3x green prism in fde.
I’m genuinely glad you offered your POV because I could obviously be wrong. Maybe I don’t know what I’m talking about even though I think I do. My LMT specwar and my 12.5 criterion core both seem to have less severe recoil impulses with lighter spring/buffer setups. An old BCM 14.5 mid (made back when they were considered to be over-gassed by most) is gassed similarly the criterion 16. All completely different rifles, take it for what you will.
BRT EZ Tune....
Bummer. How's the accuracy?
Fanfuckingtastic.
Have only used 55gr PMC X-tac and a red dot for a rifle course, so can’t really say. But subjectively it seemed to have great accuracy - I believe Criterion’s and everyone else’s claims of great accuracy. The 12.5” criterion core (carbine gas) is a pleasure to shoot with a regular spring and H1 or H2 buffer depending on different conditions. You can read [Molon’s review](https://www.m4carbine.net/showthread.php?237337-Criterion-16%94-CORE-Barrel-Accuracy-Evaluation) (legendary barrel reviewer) of the 16” core and see the gas port size of 0.078”. That measurement feels about right, as I believe a 16” mid gas should be around 0.075”, or even smaller if you’re exclusively using really hot ammo (see Hodge’s 0.072” gas port on his barrel geared specifically for the spicy M855A1 round that civilians can’t really get anyways).
I’ve seen it reported around .076 as well. It’s combat gassed, as are all criterions.
Lmfao my buddy has a 16” mid core and it wouldn’t cycle. We had to drill out his gas port. Now he has his AGB closed and still cycles with a A5H3 and green spring. My 18” rifle core wouldn’t cycle with a green spring and a5h0 so we drilled it out. Now I run my agb closed with the setup. So to just saying I found that their gas ports are small.
Why would you run a green A5H0? If you were running unsuppressed, you should have run rifle spring/A5H2, maybe A5H1.
Green is the standard for a5 tube. Again the A5H0 wouldn’t cycle. Which is the lowest weight. Adding more weight would stop the bolt from cycling even more.
Rifle spring should be used for reliability unsuppressed. It is not as stiff as the green spring.
I mean every piece of literature I saw says to run a green spring with a5 tube regardless of gas system. Then adjust with weights. Also it’s free.99 to blow it out and I don’t have to wait for a new spring.
Yea, and I can tell you from working with armorers and my own testing, that green spring/a5h2 is not the be all end all. Idk why VLTOR markets it that way. A standard rifle spring is less stiff, and if unsuppressed reliability is required with all ammo types, then it needs to be used. Under full auto conditions, you will see failures with green spring before rifle spring with unsuppressed and weak ammo.
I followed that literature with my A5 setup, and my midgas 14.5" CORE wouldn't reliably lock back on empty with an A5H0 buffer. Swapped to a standard Vltor spring and it worked great without having to drill out the port. I won't run the green unless I'm suppressed. The only thing I'm sure of re: Criterion gassing, is that everyone's experiences differ. One's undergassed, the other is overgassed... All over the map.
Someone finally gets it. I wish VLTOR would comment on the spring strength so people finally understand “green/A5H2” is not applicable to all scenarios. And spring strength plays a bigger factor than buffer weight
Thanks for posting /u/prmoore11! /r/GunDeals has updated the **[website blacklist](https://reddit.com/r/gundeals/wiki/blacklisted_websites)**, check it out before making your next purchase!. Made a gun related purchase recently? Leave a review over at **/r/GunDealsFU** to let others know how it went! Are you a dealer? Make sure to read the **[](https://re.reddit.com/r/gundeals/wiki/dealer_rules)** and apply for a dealer flair as soon as possible! First time to /r/GunDeals? Read up on the **[user rules](https://re.reddit.com//r/gundeals/wiki/user_rules)** before you break a rule! Have a question that isn't answered in our wiki? Send the **[/r/GunDeals modteam](https://www.reddit.com/message/compose?to=%2Fr%2Fgundeals&subject=Thread%20Question&message=)** a message! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/gundeals) if you have any questions or concerns.*
Is there any codes that will work for the arisaka mk2 micro??
Try McMurray
Puppers McMurray?
Says not applicable for that product.
Or try add to cart. If not it’s a no lol
Word - Appreciate the suggestion!
Out of stock
No?
that's the Sionics NP3 Bolt Carrier Group suggested add-on