AR15 Primer - A Beginner's Guide - Page 11
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Old 06-20-2013, 11:47 PM   #101
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"Army Study Guide" ... 071-100-0004 (SL1) - Maintain an M4 or M4A1 Carbine

http://www.armystudyguide.com/content/SMCT_CTT_Tasks/Skill_Level_1/0711000004-sl1-maintain-a.shtml

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Old 06-21-2013, 12:49 AM   #102
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Quote:
Originally Posted by rocshaman
Need a definitive answer on this. I hear all the old Colt SP1's are chambered in 5.56 even if they're marked .223 Rem on the lower receiver. Does anyone know if this is true for sure? Mine was made in '71.
As far as I can remember the Colt SP1 are chambered in 223., and as noted on the lower. The barrels are from military stock from the M16. Not many or none at all the guys of the time frame 1960's even would know what you were talking about if you said 5.56. It would come later when it becomes a NATO round.There is very little difference in the two rounds, so in AR type firearms let it be said 223/5.56 NATO. Now were the 5.56 comes into play is that the difference is basically headspace and chamber length. Remember that this is a military round were the firearm will be used in some nasty places. The junk and crud that gets inside the chamber,,,,,, the gun needs to fire and handle the added pressure. Even with those changes,,,,,,,,Colt added a bolt forward assist button on the M16, WE NEED TO GET A ROUND IN THE CHAMBER SOME HOW! Hope this helped you out.
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Old 06-23-2013, 03:38 PM   #103
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A lot of great information here, thank you!

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Old 08-02-2013, 01:06 AM   #104
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I just wanted to take a minute and echo the thanks everyone has expressed. I'm also just getting into the AR world and this post alone taught me more in 15-20 minutes than I had learned over the past few weeks/months. This will go a long way toward helping me figure out what the upper on my AR build needs to look like...thanks!

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Old 08-02-2013, 03:52 PM   #105
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Quote:
Originally Posted by aerowolf86 View Post
I just wanted to take a minute and echo the thanks everyone has expressed. I'm also just getting into the AR world and this post alone taught me more in 15-20 minutes than I had learned over the past few weeks/months. This will go a long way toward helping me figure out what the upper on my AR build needs to look like...thanks!
Thanks for the kind words! Makes me feel that it was worth the time and effort to put it together! Thank you!

BTW once you think you've decided on what you want out of your build, post up a new thread and tell us what you want, and what components you chose! You will find a lot of guys are dying to help you out!
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Old 08-31-2013, 08:19 PM   #106
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Default Very well written and useful guide

Wow, what a very well written, complete, logical and useful guide on buying ones first AR 15. One of the best guides and most literate commentary I've read on any gun site or blog.

Thank you.

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Old 09-10-2013, 07:26 AM   #107
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I'm glad I was turned on to this post from another tread I was reading! Very informative, defiantly opened my eyes on stuff to think about. I have a stripped lower, and after Rguns screwed me for 5 months, I got so fed up cancelled my order, I had no idea where to go with it. Now, thanks to you, and other threads I have reputable companies and information to help me along! Much appreciated!

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Old 09-19-2013, 09:03 AM   #108
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AgentTikki, I wish I had read your post before jumping in and asking Q?s first. This has cleared up a lot of Q?s and issues pertaining to my first AR buy. Very good write up.

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Old 09-24-2013, 07:56 AM   #109
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Hi, I am knew to the forum, been stalking everyone here. This thread has informed me allot about an AR15. I have been thinking about getting one, then seen and read about building an AR. I just have to decide like in the beginning stated how do I want to use it, caliber, and other stuff.

My husband feels that AR style rifles are just for military that I have to convince him...

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Old 10-16-2013, 11:28 PM   #110
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Great post. While new to this forum, I'm not new to AR15s. Spent 5 years in the Army working on them and have built a few since I got out (so many years ago). So many thing have changed since then. Hell all we had was the M16A1 or the occasional XM177E.

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