Results 46 to 60 of 95
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14 September 2015, 06:19 #46
I would rather add an adjustable gas block than add a heavier buffer and spring, even though that is the cost effective way. The heavier buffer will slow the carrier speed but you still have a lot of gas dumping out of the ejection port/in your face and you'll have an increased recoil impulse. Having the ability to tune the gas so it runs properly despite the gas port size in the barrel is the way to go.
You are right, the heavier buffer will help compensate for the suppressor, but it causes some other side effects that aren't ideal.
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14 September 2015, 06:57 #47
I'm running a syrac adj on my 10.5 ballistic advantage barreled upper & a regular BCM gas block on my 11.5 BCM BFH upper. Both run an H buffer and both have run well thus far unsuppressed.
However neither has more then 200 rounds, as I'm not a huge fan of "pistol" kits and I'm still waiting on stamp return.
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14 September 2015, 07:55 #48
I agree. The only SBR I own that gets run suppressed regularly is my Noveske 10.5" with their Switchblock. It'll run suppressed in normal, but with way more gas to the face than on the suppressed setting. This gun also came from the factory with an H2 buffer. Heavier buffers also help with things such as bolt bounce. An H2 buffer weighs 5.3oz if memory serves, and a rifle buffer weighs what, 5.9oz or something?. With that in mind, I like to run as heavy a buffer as I can without short stroking the gun and still getting the bolt to hold open on an empty mag.
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14 September 2015, 08:10 #49LEO / MIL
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I think people overthink this crap way too much, and add unnecessary accessories/parts trying to mitigate a problem that doesn't or shouldn't exist in the first place.
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14 September 2015, 08:17 #50
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14 September 2015, 14:01 #51
I wish I woulda held out for a Noveske switchblock barrel. They endorse syrac but it's kind of a pita
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14 September 2015, 14:58 #52
I much rather tune a rifle with buffers than an adjustable gas block. They all pretty much suck. If you reduce the port size they foul faster. Some so fast it will cause issues in a days shooting.
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14 September 2015, 15:46 #53
Lively debate going on here.
At what point do these 'issues' sort of no longer become 'issues'? Obviously it has an effect on shorter barrels more than anything...seemingly the shorter you go the more potential for problems.
Based on the discussion here I could say that it sounds like once you go sub-11 inches that's where it might get complicated.
That said with an 11.5 or a 12.5 what are the odds of having a problem?
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14 September 2015, 16:50 #54
It's not an issue if you buy a barrel with the correct port size for that length. BCM has a track record of having the correct port size. If you want to "make" your own barrel, I've found that ADCO's track record is also very good when they cut a barrel (for example, when the cut a barrel to 10.3, they cut it to the TDP port size). Centurion Arms is another known quantity for 12.5" barrels.
Personally I'd skip DD. While their barrels are good at many things, they've been documented to be over-gassed.
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14 September 2015, 16:56 #55
Speaking of ADCO cutting down barrels... I have a Rainer 16" middy CHF barrel. What's the shortest I can cut it down and still be reliable?
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14 September 2015, 17:04 #56
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14 September 2015, 18:12 #57
I wouldn't quite say throwing in a heavier buffer is tuning a rifle. Adjusting it so it gets just the right amount of gas to run properly is.
In my experience, reducing the amount of gas into the upper makes it foul slower; It's actually the opposite, and it's a big selling point of an adjustable gas system for suppressed shooting which is why I use them. My factory gas guns get dirty real quick versus my adjustable gas rifles
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14 September 2015, 18:15 #58
Red Dot/Holographic Site discussion
Thanks!
I'm guessing the 14.5 to 10.3 conversion was a carbine gas?
I'm not sure but I think he means fouling as in the gas regulator on a multiple gas system adjustable gets extremely dirty and can be a pain to change settings once you've used it awhile and could malfunction. I haven't experienced it personally, but have read syrac style GB's can experience this. Only thing I can think of for "more fouling"?Last edited by DutyUse; 14 September 2015 at 18:22.
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14 September 2015, 18:18 #59
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14 September 2015, 18:26 #60