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  #1  
Old 08-12-2014, 2:13 PM
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Default Ares Armor Harpe free float Upper 5.56/.223 HELP!!!! Moved

Need some help folks,

I have a Ares Armor Harpe free float Upper 5.56/.223 and this sucker hates Wolf Performance ammo (Just got it out to the range and all I had was Wolf). I know, I know, "Feed it brass and it will be happy"!!! Well I have allot of Wolf and very little Brass ammo. I completely disassembled it and cleaned and lubed the hell out of it. I am going out at lunch time tomorrow to do a little testing. I have some American Eagle 5.56 (Brass), ZQ1 5.56 (Brass) and Wolf Performance 223 (Steel).
Is there anything you can do to the chamber as far as polishing it to help the issue of steel ammo not performing? The biggest problem I have is FTF or double feed. I gather that the cases are sticking causing rough extraction slowing down the bolt and having the extractor slip off the rim (I put a rubber doughnut in the extractor spring for my testing tomorrow). Also would polishing the chamber help with this issue? If so any links or sites you can recommend to get information on how to polish it correctly without putting it out of spec would be helpful?
It is not a chrome lined chamber/barrel.
Any thoughts or tips are greatly appreciated.

http://aresarmor.com/store/Item/aa_BAupper

Specs:
Barrel: Our signature barrel which is 16 inches in length, 1:7 twist, Black Nitride coated, Carbine length gas system.
Ares Armor Nickel Boron BCG (AUTO)
Bolt Carrier Group (AUTO) for an AR15, M16, or M4: The Carrier is coated NIB. All Machining is completed to Mil-Spec. Properly Staked Gas Key. Gas key is heat treated. Carrier is made from 8620 and Heat Treated, Bolt is Heat Treated 9310. Bolt and Extractor are Shot Peened. Includes Crane O Ring.
Gas Block: is a low profile gas block made from hardened steel and has an inner diameter of .750.
Gas Tube: Is a carbine Stainless steel gas tube.

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Last edited by DocClark340; 08-12-2014 at 2:20 PM.. Reason: Change Wording
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Old 08-12-2014, 3:55 PM
OldGeek OldGeek is offline
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What did Ares Armor tell you to do?
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Old 08-12-2014, 4:18 PM
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Quote:
Originally Posted by OldGeek View Post
What did Ares Armor tell you to do?
I haven't gotten a response. I will resend it to them and update here if they ever get back to me.

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Old 08-13-2014, 9:06 AM
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bump?????
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Old 08-13-2014, 4:31 PM
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I just got this response from Ares Armor:

Hi Docclark340,
just tried to call you.
we test our uppers with federal xm193 5.56 before they all leave to customers.
there could be a few things going on.
1. wolf ammo is typically not as hot as brass cased ammo due to the steel casing (this keeps their ammo from ever blowing up). this sometime causes the gun to be under gassed. you could try opening up the gas port on the barrel up to a max of 5/64" (1/16" is usually the sweet spot). this will allow more gas to enter the gas system. the other option is to try a reduced weight buffer or recoil spring. (note: your gun will cycle a lot harder with brass ammo)
2. it also has a coating on the casing that builds up in tightly chambered barrels (why 3 rounds shoot and the 4th gets stuck). this coating gets shaved off as the casing enters the chamber and as the gun heats up, it melts.
The first thing i would do is completely clean and lube your upper and see it that helps.


Anyone else have any thoughts?????
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Old 08-13-2014, 7:48 PM
Taquero07 Taquero07 is offline
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take it to a competent gunsmith or someone who knows what they're doing. it's easy to get over zealous and want to fix things like this yourself and screw things up in the process.
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Old 08-13-2014, 7:49 PM
Taquero07 Taquero07 is offline
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oh and in the future, spend the extra coin on a reputable brand like PSA or BCM. I would avoid anything with Ares' name attached to it.
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Old 08-14-2014, 9:40 PM
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Check to see that gas key is down tight. Try different or better quality BCG. Very common problems. And better than opening gas port.
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Old 08-16-2014, 9:08 PM
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If you do not shoot brass ammo to see if it really is a steel case issue you will never be able to diagnose the problem correctly.

Basically shoot 1 to 2 mags of brass ammo from different companies and see what happens.

A firearm should allow you to load mags with every round being from a different manufacturer and brass plus steel case with no failure to feeds. A firearm that is designed and tested with only one specific type of ammo is a firearm that will have failure to feed issues.

The whole "steel cases are loaded lower power than brass cased ammo" is really incorrect but technically correct.

Lake City 193 is loaded at 3165 fps

Wolf Steel 193 is loaded at 3140 fps

So there is a 25 fps sec difference but that is not enough to make any type of real difference in gas pressure to cycle the BCG.


Double feeds are either extractor issues, magazine lips issues or both and also I would test the extractor and make sure it is not broken, defective, poorly designed or has a underpowered spring. Take the BCG with the bolt and remove the ejector plunger then slide a round into the proper position and shake the BCG and swing it in a fast circle motion. If the round falls out then it is a weak or defective extractor issue.

Last edited by Gunsmith Dan; 08-16-2014 at 9:13 PM..
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Old 08-23-2014, 11:40 AM
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Quote:
Originally Posted by Gunsmith Dan View Post
If you do not shoot brass ammo to see if it really is a steel case issue you will never be able to diagnose the problem correctly.

Basically shoot 1 to 2 mags of brass ammo from different companies and see what happens.

A firearm should allow you to load mags with every round being from a different manufacturer and brass plus steel case with no failure to feeds. A firearm that is designed and tested with only one specific type of ammo is a firearm that will have failure to feed issues.

The whole "steel cases are loaded lower power than brass cased ammo" is really incorrect but technically correct.

Lake City 193 is loaded at 3165 fps

Wolf Steel 193 is loaded at 3140 fps

So there is a 25 fps sec difference but that is not enough to make any type of real difference in gas pressure to cycle the BCG.


Double feeds are either extractor issues, magazine lips issues or both and also I would test the extractor and make sure it is not broken, defective, poorly designed or has a underpowered spring. Take the BCG with the bolt and remove the ejector plunger then slide a round into the proper position and shake the BCG and swing it in a fast circle motion. If the round falls out then it is a weak or defective extractor issue.
Those sound like good tips. I will try them. The upper is still new with less them 100 rounds through it.
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