We get this question all of the time, which weight buffer should I run? In this video we hope to give you more information so you can pick the best weight buffer for your AR. The Maxim Defense CQB Brace was featured in this video and is also available as a stock. These sets are an awesome pick for your AR and come with a standard buffer. Additional heavier buffers are also available.
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Hi Dave, I love the channel and have learned a lot thank you. I have a question regarding ejection pattern. I have a 16" mid-length barrel with a gas port size of .076, I have a M16 bcg with sprinco springs in the upper, my upper has no shell deflector and with an H buffer and Blue sprinco spring it ejects around 5:00. If I had a shell deflector would this be ejecting at the correct 3 to 4:00 range. The rifle is very reliable with all ammo. Basically, is everything okay. Thank you for your time and help.
That is a sweet, short, and very nice upper! Who made it?
Only thing i would add is to try the buffer with the weakest ammo you fire (steel cased .223 is usually the most underpowered, also try with the heaviest weight bullet, so if you use 77gr smk, try those too) that way you make sure the gun will function with it and also give you some wiggle room for a dirty rifle firing something like m193,m855 etc
What buffer weight is good for bear creek 10.5 556 carbine gas upper? -first build
BEAUTIFULLY explained. THANK YOU!!!
hallo
im going to build piston ar 15 with adams arms short stroke piston gas system
barrel will be 14.5 inch from aero precision, carbine length
i can do it only semi automatic
can you tell me which buffer will be the correct one ?
thank you an sorry for my english
My barrel manufacturer went out of business and I haven’t been able to get their recommendation for the correct Buffer weight.
It’s an Olympic Arms XM177E2 Barrel in SS 5.56 and 11.5 inches.
Wow learn something new everyday
i'm in the middle of 2 new 5.56 builds. A 16 inch and a 10.5". I just finished the lower ends and I put Geissele Super 42 Springs with H2 buffers in both. I'm certain that will be good on the 10.5 inch, but I'm worried about 16 inch. I will probably switch out the spring in one of my other AR rifles and see what happens. I hope it works out. The Super 42 spring & buffer sets are $100 a piece.
Very clear thank you
Its ejecting forward, not because of brass hitting the brass deflector, but brass being ejected and the bolt cycles to FAST, then the head of the bolt hits it forward to the 2 o'clock position. Fixable with heavier buffer and/or flat wire buffer spring.
Excellent video on the topic. I have a question: Is there a powdered Tungsten buffer available for the Springfield Saint Edge PDW out there? Thanks.
Wow first thing I noticed as you lost a lot of weight I’ve been out of the gun game for a few years and I recognize the face. Good job my man
I use a H2. 3 to 3:30 ejection in my carbine
What's the best buffer & spring 🤔 for a 450 Bushmaster??????
Shot my 11.5 barrel and had a 3-4oclock ejection. Changed out full bcg and now ejecting 2-3oclock with a H1 and H2. Would the bcg ne the problem? My old carrier and new carrier are FA carriers.
Why no H4?
Great info. I'm running an Aero Precision M4E1 8" 300BLK upper/lower w/Maxim Defense CQB-PDW w/Standard buffer. I use 115gr. supersonics for defensive purposes. Just got an H1 buffer delivered today.
Did a 6 rd. function check and the difference in ejection pattern is more consistently 3-4 o'clock…. Wasn't bad before, but I knew it could be a bit better.
Keep the vids comin'. Appreciate the info.
Hi Dave, I have a slick side AR it has always ran perfectly, ejecting the brass or steel around 3:30 or 4:00 o'clock in a nice pile. I recently installed a brand new bolt, and shot six rounds of cheap 55 grain Tula, it cycled and locked back just fine but the shells where in a pile in the 5 o'clock position. Is this a problem. Should I be concerned. Thank you for your time and help.
Best buffer for 450 BM? Also SB 350 legend?
Running a 4.75 ar, recommended buffer spring and buffer?
I have a Barrel Length: 10.5"
Barrel Profile: A2
Gas System: Carbine-length
Barrel Steel: 4150V Chrome Moly Vanadium
And a aero precision m4e1 carbine complete lower
Which buffer is the best choice?
so get a h2 for a 458 socom upper? need help. thank you.
Awesome video, with a welth of information. Thank you for the indormtion. God Bless and keep rocking us with valuable information.
Just I’m just curious, for a 10.5 inch barrel/upper on a pistol lower, just use the standard buffer weight initially? If no issues just roll with it or maybe try an H1? Any tips on maximizing recoil reduction so as to keep tighter groups? That is, besides a better trigger and compensator, which I plan on getting anyway.
You were discussing carbine length, but what If im running a mid length Faxon barrel?
If a gun is under gassed going by shell ejection but runs reliably should you still tune it better?
I'm running m&p 15 with a geissele super 42 buffer spring with the guns original buffer. What would be the recommended buffer for this combo?
so the heavier the buffer the less the recoil?
any recommendations on a suppressed 8.5in 300blk out pistol build with a SBA3 brace?
Makes a lot of sense to run what is best for each platform. Have you seen or used Armament products? Its a small company but they make a hell of a buffer system. I don’t see it used often but I would really like to see someone knowledgeable do a review and see how it stacks up against other buffers in the same class(high end build) and give a run down!
https://armamentusa.com/product/larb/
What barrel length on that aero?
Hi Dave, I have been a subscriber for a while and want to thank you for all you do. You have helped me many times when I had no idea what I was doing. My question was when do I need to change out my buffer and what are the signs, before it is too late. Thank you for your time and help.
This may be a dumb question. If a buffer is functioning properly, shouldn't the buffer become hor or at least warm up after firing a full magazine? Where does the energy go? Industrial buffers get hot with use. Thanks.
This was so great Dave! Thanks!
Great video, I used the brass ejection to dial in my buffer weight. Seems to be good to go. Thanks again for posting.
H3s can normally run in a 11.5 or less with or without a suppressor as long as it's a carbine system…14.5" barrels are h2 sweet spots with a carbine length…reason why you can run h3s in 99% of barrels with carbine gas systems are because the gas port hole in the barrels are opened a little bit more than traditional ports…reason behind that being, that most commercial manufacturers made the barrels to run anything from cheap Russian underpowered steel cased, all the way up to high pressured 556 rounds…so to counter that, it's always better to go heavy…now this info is just for carbine systems…with mid length h2s are generally the way to go
Finally no nonsense advice with a non annoying asshole screaming and ranting nice job
You should have mentioned hydraulic buffers.
1:40. Dude… why take the time to zoom in on marked buffers with inscribed values, if you cover the inscriptions with your hands and fingers? That’s the reason I came to your video. 👎
Great information!