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Thread: AR Failure to Feed - Please Read
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April 2nd, 2017, 09:43 PM #21
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April 2nd, 2017, 09:46 PM #22Junior Member
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Re: AR Failure to Feed - Please Read
Adjustable six way stock.
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April 2nd, 2017, 09:54 PM #23Super Member
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April 2nd, 2017, 10:16 PM #24Junior Member
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Re: AR Failure to Feed - Please Read
MEK - I don't have another AR
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April 3rd, 2017, 12:05 AM #25
Re: AR Failure to Feed - Please Read
Forgive the question, but are you "slingshotting" the charging handle on the first round, or "riding" the handle forward (holding on to the handle while it goes forward)?
If the bolt is open and held back by the bolt stop, does it strip and feed the first round when the bolt stop is pressed?
NoahWisdom and knowledge shall be the stability of thy times.
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April 3rd, 2017, 01:31 AM #26
Re: AR Failure to Feed - Please Read
Heavier spring equals slower bcg. Might start feeding problems with the rest of the mag.
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April 3rd, 2017, 06:45 AM #27
Re: AR Failure to Feed - Please Read
Owner Trigger Time LLc 01 FFL/NFA Saylorsburg, PA. Sales/Service/Transfers/Training
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April 3rd, 2017, 07:12 AM #28Junior Member
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Re: AR Failure to Feed - Please Read
No sling shotting or riding the bolt. When we shoot 3 Gun - they want your bolt back showing an open chamber. So you enter the stage, grab your empty gun, load the mag, and then I drop the bolt.
@Rosco - I am not an expert, thats why I am on here asking.
@Gunsnwater - Interesting, so the heavier spring would slow the BCG after I fire the first round. Is that what you mean? More resistance against the BCG coming back because of the heavier spring, which would slow it down. Right?
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April 3rd, 2017, 08:45 AM #29
Re: AR Failure to Feed - Please Read
Okay, lets take it back to fundamentals here. Does the misfeed occur ONLY when dropping the bolt or also while running it?
1) An extra heavy spring will likely not solve your problem. If you're under gassed and not getting enough power moving forward, a heavier spring may only exacerbate this. If it only happens when dropping the bolt, an extra power spring may help. However, more than likely, just sitting in front of the tv manipulating the charging handle a million times will solve any issues by wearing the parts into each other (read: reduce friction).
2) What do the feed ramps look like? Does the barrel extension have m4 ramps? Does the upper?
3) How many cycles (approx.) has this new upper seen? Some bolts have extra thick coatings and truly need a break in period.
4) Is the barrel freefloated? If so, what kind of gas block? Have you taken this off to check for obstructions to the gas port? What about port/block alignment? Again, this only applies if it FTF's during live fire.
5) Have you inspected the bolt gas key staking? If the staking is poor and the key is loose, this could cause your problem.
6) Does your failure look like this: http://www.ar15.com/forums/t_1_5/128...e_to_Feed.html
7) How much lube/oil are you using? A new gun likes to be dripping until loosened up a bit.
8) Have you tried dropping the bolt on 29 rounds? 28? 27? 3? 2? 1? Spring tension in the mag may be overcoming buffer spring expansion forces.
Just some thoughts...I'm only here for the wood c-rings.
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April 3rd, 2017, 08:52 AM #30
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