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Campfire Outfitter
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OP
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Like the title says
AR15 in 5.56 ejecting forward at about 2 o'clock
H buffer weighs 3.75 oz
Carbine length gas system
M16 bolt
I'd rather it eject at 3 o'clock
Any remedies
Maker of the Frankenstud Sling Keeper
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
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for a normal 20 inch, that would mean the ejector spring was trimmed back or very weak. Thats where we trim them to eject to 2 oclock on purpose for matches. Much more of a pile and less erratic. Easier to find brass from strings of fire.
My guess, since I don't own anything much other than rifle systems and 20 inch tubes, if you put a new ejector (not extractor) spring in a rifle, it would eject further back. and you could trim it forward to 3 then....
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Campfire Outfitter
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I've heard conflicting opinion on just going with a heavier buffer
Maker of the Frankenstud Sling Keeper
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Campfire Outfitter
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I've heard conflicting opinion on just going with a heavier buffer A heavy buffer needs a beefed up recoil spring to go with it.
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Campfire Tracker
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Campfire Tracker
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Just a guidline..but I'd say you're on the right track.
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Campfire Outfitter
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Campfire Outfitter
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"A heavy buffer needs a beefed up recoil spring to go with it."
Not necessarily.
If the ejector spring does not cure it, try an H2 buffer or a heavy action spring but one thing at a time. I run H2's with standard springs on all carbine and even some mid length systems. H2's offer more benefits than side effects.
Curious what the conflicting opinions had to say about heavier buffers.
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 18,300 |
I just went from an unmarked buffer (have not weighted it) that came with an LMT lower to an H buffer with a DD midlength gas upper, spent cases now go the the right, It also made more spring noise in the stock with the original buffer when it fired which I did not care for. My stock Colt carbine came with and H and ejects to the right.
Anyone know for sure when an H2 might be indicated?
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Joined: Jan 2005
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Campfire Kahuna
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Campfire Kahuna
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How did the cases go to the left before the H buffer?
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Joined: Nov 2006
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Campfire Outfitter
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Campfire Outfitter
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Indicated by ejection pattern but basically, if one were to run the heaviest buffer that would still allow the bolt to reliably lock back on an empty mag, that would be perfect.
Remember the design called for a FA bolt carrier and a 5.6 oz rifle length buffer with a softer rated but longer spring. The collapsable stock was made to work but not really perfected as it is harder to shoot and harder on the gun.
With the heavier buffer, you have an object that is harder to move to the rear that eats up energy/gas and when it returns home, it hits pretty hard. Installing a heavier spring increases this forward momentum even more, which is not a good thing. (Think bolt bounce, knocking reticles out of optics and breaking bolts.
Tuning your gas system is like tuning a bow. It may work as is but it will work better when everything is in synch.
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Campfire Ranger
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Campfire Ranger
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Campfire Outfitter
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I took the buffer apart and swapped the steel for carbide it now weighs 2.6 or H2
I'll give that a try but if I go heavier I will need to change the body material to SS or Beryllium copper
Maker of the Frankenstud Sling Keeper
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Campfire Outfitter
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Campfire Outfitter
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H2 = 4.6
Before you go through the trouble of turning out a body, I'll let you try a 9mm buffer if you like.
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Campfire Outfitter
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Sorry.....type error
4.6
Rain for the next 3 days but I'll get out and shoot it and report back
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