Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7174364
02/08/21 08:03 PM
02/08/21 08:03 PM
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Joined: Feb 2014
Posts: 25,694 nm
adam m
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I would put money the buffer spring is too long or has too much tension and or the detent is not sitting properly. I had similar issues on an ar I built, took it to a buddy who is a wizard with ar's. Within in 2 seconds the diagnosis was in once he took it apart he confirmed it cut off 2 coils from the buffer spring replaced the detent and spring and it shoots like a dream now.
My buddy said it's a very common issue with the buffer springs (all brands). He trims them often and it usually solves the issue.
I wouldn't be surprised if the buffer tube is being hit hard too. Post a pic of the buffer tube
Last edited by adam m; 02/08/21 08:08 PM. Reason: Added text
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7174369
02/08/21 08:08 PM
02/08/21 08:08 PM
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Joined: Dec 2006
Posts: 9,684 ND
MJM
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My bother built a AR-10 and it didn't want to feed. He tried different brands of magazines and found one that worked. A well made, semi auto should function from the start. The only reason for a break in period would be to knock off rough edges that are hanging up. I shot a new Benelli M-2 that would jam about 5 or 6 times to a box of shells. Everyone said you have to break it in. After about 60 cases of shell it was down to jamming 3-4 times a box. I finally was told to replace the spring in the stock with a stronger spring and that fixed it 100%. A different buffer and spring may help. Other than not feeding you have not said what it does. There are a number of things that can cause a semi auto to not feed. What it does can give clues to why. You should not have to replace parts on a new gun to make it function, but I have see where it was required.
"Not Really, Not Really" Mark J Monti "MJM you're a jerk."
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7174370
02/08/21 08:08 PM
02/08/21 08:08 PM
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Joined: Sep 2013
Posts: 18,533 Green County Wisconsin
GREENCOUNTYPETE
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Green County Wisconsin
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check the gas block , some manufacturers have been making them so fast that the gas blocks didn't get tightened 100% I have had them work forward after some rounds , if it is leaking you should see it around the gas block soot around the gas block
if the gas block moves forward it partially blocks the gas port as well as bleeding of gas and not inserting the gas tube as far into the gas key as it needs to be
does it have an adjustable gas block?
remove your BCG , pull the cotter key, firing pin and cam pin. take the bolt out of the BC inspect your gas rings
make sure like you would on piston rings that the gas rings are not lined up that the notch is opposite the one before it. now use the oil they told you to get those rings wet and don't dry them off re-assemble your BCG
only one round in the mag to start
you lock back the BCG insert mag let it click in hit the bolt release let the bolt slam forward
fire.
does it lock back?
2 rounds , does it feed the second round ? does it lock back after the second round ?
if it feeds and works load a mag with 5 , fire it , load with 10 fire it does increasing the rounds in mag change feeding.
if you have done all this and there are still issues , you should call them again explain what you have done testing and ask for an RMA to send in the gun
Last edited by GREENCOUNTYPETE; 02/08/21 08:09 PM.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7174431
02/08/21 08:51 PM
02/08/21 08:51 PM
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Joined: Dec 2008
Posts: 1,749 eastern washinghton
70sdiver
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Joined: Dec 2008
Posts: 1,749
eastern washinghton
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My friend brought a new ar he bought the gas key was installed backwards, it ejected fine but never would feed the second round
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7174439
02/08/21 09:01 PM
02/08/21 09:01 PM
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Joined: Jan 2020
Posts: 128 WI
WIFrost
OP
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OP
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Joined: Jan 2020
Posts: 128
WI
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Thanks for all the advice guys. They told me today they are shipping it back so I should have it by next week. I will do an update on here once I try some of these things and let you know the results.
Last edited by WIFrost; 02/08/21 09:02 PM.
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Re: Stag Arms .308 AR issues
[Re: GREENCOUNTYPETE]
#7175223
02/09/21 01:38 PM
02/09/21 01:38 PM
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Joined: Dec 2006
Posts: 9,757 Wy
Cattrax
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Wy
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check the gas block , some manufacturers have been making them so fast that the gas blocks didn't get tightened 100% I have had them work forward after some rounds , if it is leaking you should see it around the gas block soot around the gas block
if the gas block moves forward it partially blocks the gas port as well as bleeding of gas and not inserting the gas tube as far into the gas key as it needs to be
does it have an adjustable gas block?
remove your BCG , pull the cotter key, firing pin and cam pin. take the bolt out of the BC inspect your gas rings
make sure like you would on piston rings that the gas rings are not lined up that the notch is opposite the one before it. now use the oil they told you to get those rings wet and don't dry them off re-assemble your BCG
only one round in the mag to start
you lock back the BCG insert mag let it click in hit the bolt release let the bolt slam forward
fire.
does it lock back?
2 rounds , does it feed the second round ? does it lock back after the second round ?
if it feeds and works load a mag with 5 , fire it , load with 10 fire it does increasing the rounds in mag change feeding.
if you have done all this and there are still issues , you should call them again explain what you have done testing and ask for an RMA to send in the gun
Dead on, first thing I'd do it check gas block alignment and gas tube, been there a few times, and everytime it was either a crappy gas block or misaligned.
"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." -- Thomas Jefferson
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Re: Stag Arms .308 AR issues
[Re: Cattrax]
#7175226
02/09/21 01:39 PM
02/09/21 01:39 PM
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Joined: Jun 2010
Posts: 16,366 Iowa
~ADC~
The Count
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The Count
Joined: Jun 2010
Posts: 16,366
Iowa
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check the gas block , some manufacturers have been making them so fast that the gas blocks didn't get tightened 100% I have had them work forward after some rounds , if it is leaking you should see it around the gas block soot around the gas block
if the gas block moves forward it partially blocks the gas port as well as bleeding of gas and not inserting the gas tube as far into the gas key as it needs to be
does it have an adjustable gas block?
remove your BCG , pull the cotter key, firing pin and cam pin. take the bolt out of the BC inspect your gas rings
make sure like you would on piston rings that the gas rings are not lined up that the notch is opposite the one before it. now use the oil they told you to get those rings wet and don't dry them off re-assemble your BCG
only one round in the mag to start
you lock back the BCG insert mag let it click in hit the bolt release let the bolt slam forward
fire.
does it lock back?
2 rounds , does it feed the second round ? does it lock back after the second round ?
if it feeds and works load a mag with 5 , fire it , load with 10 fire it does increasing the rounds in mag change feeding.
if you have done all this and there are still issues , you should call them again explain what you have done testing and ask for an RMA to send in the gun
Dead on, first thing I'd do it check gas block alignment and gas tube, been there a few times, and everytime it was either a crappy gas block or misaligned. Wouldn't you think the company making the guns would of checked on that, especially after he sent it back to them with feeding issues?
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7175230
02/09/21 01:41 PM
02/09/21 01:41 PM
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Joined: Mar 2013
Posts: 17,026 Fredonia, PA.
Finster
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Fredonia, PA.
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I think it's going to be a mag issue. AR's can be very fussy.
I BELIEVE IN MY GOD, MY COUNTRY AND IN MYSELF.
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Re: Stag Arms .308 AR issues
[Re: WIFrost]
#7175334
02/09/21 03:42 PM
02/09/21 03:42 PM
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Joined: Oct 2007
Posts: 252 Mo.
1cav
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Posts: 252
Mo.
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Check your gas tube assembly, had a AR 10, that was simpler to your problem. My rifle's, problem not enough gas, pushing bolt back to cycle a round, after 2/3 rd. Easy fix, close your gas off, readjust gas valve until 1 rd will reject. Then load 3 rds, and fire. If you get your rds., off, turn your gas back down until it wont cycle. Then slowly increase gas, until it feeds properly. Sounds alot like bolt is to slow, and catching your feed rd. It could be just the opposite also to much gas, and bolt is bouncing. Seen this in AR platforms, when reloading ,to hot of powder That's my experience, when AR's wont feed properly. Plus what you said, tried different mags and ammo. It's a factory built rifle and Stag are quality rifles, have several Ar's, with Stags part kits ADC statement is dead on, loose gas port, I'm betting gas problem, plus these people who test fire are test fire, not builders, these company's are building and rolling them out
Last edited by 1cav; 02/09/21 03:49 PM.
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Re: Stag Arms .308 AR issues
[Re: ~ADC~]
#7175484
02/09/21 06:07 PM
02/09/21 06:07 PM
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Joined: Sep 2013
Posts: 18,533 Green County Wisconsin
GREENCOUNTYPETE
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Green County Wisconsin
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Wouldn't you think the company making the guns would of checked on that, especially after he sent it back to them with feeding issues?
you would also expect an answer like we put 20 rounds of brand X 150gr ammo through it without any issue , please try this and not just it likes more expensive ammo.
Last edited by GREENCOUNTYPETE; 02/09/21 06:08 PM.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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