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 LR 308
#7461858
03/18/19 10:29 PM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
OP
Pro Tracker
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OP
Pro Tracker
Joined: Feb 2013
Posts: 1,389 |
Need a little help or info. I have a AR 10 built with Aero Precision upper and lower. Had a A2 stock on it and wanted to change to an adjustable style. Have a carbine length stock, tube and buffer. Purchased a LR 308 buffer spring. Assembled stock and now the bolt will not lock back on empty mag and appears bolt will not fully retract. What am I missing?
 22 Creedmoor
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Re: LR 308
[Re: BassCat'99]
#7461941
03/18/19 11:31 PM
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Joined: Aug 2015
Posts: 4,070
Pig_Popper
Extreme Tracker
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Extreme Tracker
Joined: Aug 2015
Posts: 4,070 |
The buffer tube for an AR10 is a tad longer than the AR15.
Get on LaRue Tacticals website and order one of their carbine buffer tubes. Use the shorty buffer you ordered and maybe grab a Springco ORANGE spring to set it off right
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Re: LR 308
[Re: Pig_Popper]
#7461981
03/19/19 12:18 AM
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Joined: Apr 2013
Posts: 2,424
tenyearsgone
Veteran Tracker
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Veteran Tracker
Joined: Apr 2013
Posts: 2,424 |
The buffer tube for an AR10 is a tad longer than the AR15.
Get on LaRue Tacticals website and order one of their carbine buffer tubes. Use the shorty buffer you ordered and maybe grab a Springco ORANGE spring to set it off right There’s no difference.
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Re: LR 308
[Re: BassCat'99]
#7461982
03/19/19 12:19 AM
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Joined: Apr 2013
Posts: 2,424
tenyearsgone
Veteran Tracker
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Veteran Tracker
Joined: Apr 2013
Posts: 2,424 |
Need a little help or info. I have a AR 10 built with Aero Precision upper and lower. Had a A2 stock on it and wanted to change to an adjustable style. Have a carbine length stock, tube and buffer. Purchased a LR 308 buffer spring. Assembled stock and now the bolt will not lock back on empty mag and appears bolt will not fully retract. What am I missing? Post a pic of your buffer.
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Re: LR 308
[Re: BassCat'99]
#7461985
03/19/19 12:21 AM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
OP
Pro Tracker
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OP
Pro Tracker
Joined: Feb 2013
Posts: 1,389 |
22 Creedmoor
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Re: LR 308
[Re: BassCat'99]
#7462134
03/19/19 03:54 AM
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Joined: Aug 2015
Posts: 4,070
Pig_Popper
Extreme Tracker
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Extreme Tracker
Joined: Aug 2015
Posts: 4,070 |
There is a difference
I had exactly the same issue as the OP using a AR15 buffer tube
It’s not to say that all people will have the issue with the bolt carrier not traveling back far enough to engage the bolt catch but when it does happen the longer Carbins buffer tube is the key
This space is For Sale - inquire within ...
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Re: LR 308
[Re: Pig_Popper]
#7462138
03/19/19 04:12 AM
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Joined: Apr 2013
Posts: 2,424
tenyearsgone
Veteran Tracker
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There is a difference
I had exactly the same issue as the OP using a AR15 buffer tube
It’s not to say that all people will have the issue with the bolt carrier not traveling back far enough to engage the bolt catch but when it does happen the longer Carbins buffer tube is the key There’s plenty of articles listing the common parts.
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Re: LR 308
[Re: BassCat'99]
#7462144
03/19/19 05:08 AM
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Joined: Aug 2015
Posts: 4,070
Pig_Popper
Extreme Tracker
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I know
Kind of depends what exactly he has, the longer receiver extension would probably get him rolling the quickest
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Re: LR 308
[Re: tenyearsgone]
#7462319
03/19/19 02:15 PM
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Joined: Jan 2011
Posts: 5,045
David Maas
THF Trophy Hunter
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THF Trophy Hunter
Joined: Jan 2011
Posts: 5,045 |
There’s plenty of articles listing the common parts. This popped up on Arf just a few weeks ago: No you should not use any AR15 or AR10 buffer or buffer springs in an LR308. While the LR308 uses the same tubes, buttstock shells and mounting equipment as the AR15, the buffer and buffer spring are LR308 specific. The AR15 or AR10 spring or buffer used in an LR308 can, and usually will, cause cycling problems.
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Re: LR 308
[Re: David Maas]
#7467050
03/24/19 03:00 PM
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Joined: Apr 2013
Posts: 2,424
tenyearsgone
Veteran Tracker
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There’s plenty of articles listing the common parts. This popped up on Arf just a few weeks ago: No you should not use any AR15 or AR10 buffer or buffer springs in an LR308. While the LR308 uses the same tubes, buttstock shells and mounting equipment as the AR15, the buffer and buffer spring are LR308 specific. The AR15 or AR10 spring or buffer used in an LR308 can, and usually will, cause cycling problems. That’s why I asked for a pic of his buffer. I think he’s using the wrong one.
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