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Posted: 10/29/2014 8:08:40 PM EDT
I finished up milling an 80% billet lower this week and was trying to figure out what size bbl and gas system.
I decided to go with a 20" "A4 Clone" Lower is 80% arms 7075-T6 Billet Upper is Aero Precision Bbl is Wyndham Weaponry 20" Reason? I was going with the MOE fixed stock (which I love BTW) because when I shoot my carbine, i shoot with the stock fully extended... just how I like it. I did some measuring and the 20" is only a few inches longer than my 16 and is much softer shooting with the rifle system. New 20" With 16" Stock fully extended 
With 16" partially extended 
With 16" Fully Compact 
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Posted: 10/29/2014 8:23:09 PM EDT
[#1]
Very nice.
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Posted: 10/29/2014 8:55:45 PM EDT
[#2]
I just finished a 20" also and love it. Mega upper and lower, CMMG parts kit, with a 15" KeyMod from M.I. and a Green Mountain 1/8 twist barrel. Shoots better then I can.
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Posted: 10/29/2014 8:55:45 PM EDT
[#3]
Very nice build. I like the MOE rifle stock too.
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Posted: 10/29/2014 9:44:55 PM EDT
[#4]
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. |
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Posted: 10/29/2014 11:14:05 PM EDT
[#5]
Quote HistoryQuoted:
Would you say it was about 4" longer? I'm sorry, but that made me laugh. Quote HistoryQuoted:
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 |
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Posted: 10/29/2014 11:40:21 PM EDT
[#6]
Quote HistoryQuoted:
Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 Quote HistoryQuoted:
Quoted:
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 That wasn't the point, but alright. Looks good. |
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Posted: 10/29/2014 11:59:56 PM EDT
[#7]
Quote HistoryQuoted:
That wasn't the point, but alright. Looks good. Quote HistoryQuoted:
Quoted:
Quoted:
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 That wasn't the point, but alright. Looks good. i got ya. just realized you were making a joke |
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Posted: 10/30/2014 2:40:08 PM EDT
[#8]
Some might poo poo the point about a rifle shooting softer than a carbine. Citing that a 5.56 has no recoil and real men wouldn't care. But the fact is, I enjoy shooting a rifle better also. I can't always tell if it's nostalgia or what, but I just do. Nice build. I'm more of a traditionalist, but I bet that stock pretty comfy. How do you like the ACOG? I'm totally jealous.
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Posted: 10/30/2014 6:45:16 PM EDT
[#9]
Nice. I have a 20" BCM upper on a PSA lower that looks much like yours, with the exception of an MOE collapsible stock. Very comfortable setup. I like it as much as my 16".
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Posted: 10/30/2014 7:35:43 PM EDT
[#10]
Quote HistoryQuoted:
Some might poo poo the point about a rifle shooting softer than a carbine. Citing that a 5.56 has no recoil and real men wouldn't care. But the fact is, I enjoy shooting a rifle better also. I can't always tell if it's nostalgia or what, but I just do. Nice build. I'm more of a traditionalist, but I bet that stock pretty comfy. How do you like the ACOG? I'm totally jealous. I LOVE it. it makes shooting out to 600 much much easier than with standard irons, and better at close range than a regular rifle scope (<100m using the BAC takes some practice) |
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Posted: 10/30/2014 8:27:03 PM EDT
[#11]
Boy howdy! I love that rifle!!!! That is SWEEET!!!
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Posted: 10/30/2014 10:54:18 PM EDT
[#12]
Put the collapsible stock on the 20"er and you'd have a winner.
Posted Via AR15.Com Mobile |
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Posted: 10/31/2014 9:07:48 PM EDT
[#13]
beautiful rifles. You need a bayonet and you should sell that carpet to help pay for it.
I too love my 20"s and A ta31 makes them sing. |
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Posted: 11/1/2014 11:51:44 PM EDT
[#14]
Quote HistoryQuoted:
I LOVE it. it makes shooting out to 600 much much easier than with standard irons, and better at close range than a regular rifle scope (<100m using the BAC takes some practice) Quote HistoryQuoted:
Quoted:
Some might poo poo the point about a rifle shooting softer than a carbine. Citing that a 5.56 has no recoil and real men wouldn't care. But the fact is, I enjoy shooting a rifle better also. I can't always tell if it's nostalgia or what, but I just do. Nice build. I'm more of a traditionalist, but I bet that stock pretty comfy. How do you like the ACOG? I'm totally jealous. I LOVE it. it makes shooting out to 600 much much easier than with standard irons, and better at close range than a regular rifle scope (<100m using the BAC takes some practice) Now if I could only find one for about a 1/4 of the price. 
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Posted: 11/4/2014 8:01:17 PM EDT
[#15]
Quote HistoryQuoted:
Put the collapsible stock on the 20"er and you'd have a winner. Posted Via AR15.Com Mobile I have a CTR on mine. Its ok |
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Posted: 11/4/2014 8:12:57 PM EDT
[#16]
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I have a CTR on mine. Its ok Quote HistoryQuoted:
Quoted:
Put the collapsible stock on the 20"er and you'd have a winner. Posted Via AR15.Com Mobile I have a CTR on mine. Its ok I had a CTR on my 20" build for a while and it didn't balance very well. I have since put a UBR on it and it works really well and balances much better. |
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Posted: 11/4/2014 9:40:13 PM EDT
[#17]
Quote HistoryQuoted:
I had a CTR on my 20" build for a while and it didn't balance very well. I have since put a UBR on it and it works really well and balances much better. Quote HistoryQuoted:
Quoted:
Quoted:
Put the collapsible stock on the 20"er and you'd have a winner. Posted Via AR15.Com Mobile I have a CTR on mine. Its ok I had a CTR on my 20" build for a while and it didn't balance very well. I have since put a UBR on it and it works really well and balances much better. I should have been more specific. LMT Sopmod Collapsible. |
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Posted: 11/5/2014 11:04:07 AM EDT
[#18]
I didn't like the balance with a sopmod either, personally.
My only AR is currently an M16A4 semi-clone. The fixed stock doesn't bother me. 
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Posted: 11/5/2014 8:38:41 PM EDT
[#19]
Quote HistoryQuoted:
That wasn't the point, but alright. Looks good. Quote HistoryQuoted:
Quoted:
Quoted:
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 That wasn't the point, but alright. Looks good. I for 1 found your subtle comedy humorous, providing a chuckle on this otherwise mundane wednesday. As for the OP's slightly larger in length AR. Looks good. Now start working up some loads to optimize it's potential. |
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Posted: 1/1/2015 10:37:14 PM EDT
[#20]
I'm in the process of assembling 3 more 20" rifles, all A2,A4 and A1's as I love the looks and feel. I have long monkey arms and a 20 incher fits and balances nicer then a shorter barrel.
Now I do have some with barrels from 11.5 to 14.7" but my go to gun is my 20" A4. |
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Posted: 1/2/2015 2:59:29 AM EDT
[#21]
Nothing wrong with a 20" AR. All of the carbine mentality in the civilian sector is mostly owed to slick marketing.
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Posted: 1/2/2015 12:12:13 PM EDT
[#22]
I love 20s.
Nice rifle OP. |
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Posted: 1/2/2015 1:05:43 PM EDT
[#23]
Quote HistoryQuoted:
That wasn't the point, but alright. Looks good. Quote HistoryQuoted:
Quoted:
Quoted:
I did some measuring and the 20" is only a few inches longer than my 16 Would you say it was about 4" longer? I'm sorry, but that made me laugh. Actually no. when I have the 16" stock fully extended, it's OAL is about 37-1/4, my 20" OAL is 39-5/8 That wasn't the point, but alright. Looks good. I got you, it was funny. Anyways, nice rifles dude. |
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Posted: 1/2/2015 1:23:07 PM EDT
[#24]
Looks great!
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Posted: 1/3/2015 9:57:20 AM EDT
[#25]
You did the right thing; you need both! Very nice rifle
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Posted: 1/3/2015 10:02:37 AM EDT
[#26]
Nice build
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Posted: 2/27/2015 5:19:11 PM EDT
[#27]
I am looking at building the same with a 18" barrel. Already have a NM A2
I was looking a using the NM free float tube under the MOE handguards. That way nobody would expect that barrel was free floated |
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Posted: 2/28/2015 9:39:45 PM EDT
[#28]
I I was only going to have one AR it would be a 20
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Posted: 2/28/2015 9:54:07 PM EDT
[#29]
20 is the new 16.
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Posted: 3/1/2015 10:45:14 PM EDT
[#30]
Quote HistoryQuoted:
20 is the new 16. While I'll never get rid of my carbines , I've always preferred the 20" barrels . Fox |
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Posted: 3/3/2015 10:20:19 AM EDT
[#31]
Now that I live out in the middle of nowhere in rural ND, I find that *NEED* that extra velocity in a 20" heavy barrel to get accurate shots out to much greater distances than typically found on a 16"
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Posted: 3/3/2015 10:31:01 AM EDT
[#32]
I love shooting my 20" 1-7" barreled AR. It is my favorite at the moment. I bought the barrel on sale from CMMG quite some time ago. It is a very accurate barrel with Sierra 77g OTM projectiles.
The MOE furniture set is very comfortable on it also. |
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Posted: 3/3/2015 1:26:49 PM EDT
[#33]
Quote HistoryQuoted:
20 is the new 16. About 5 years ago you would've started a flame war that lasted days and eventually would've been banned for that kind of blasphemy.   In fact, the only way you're getting away with it right now is because your not in AR discussions. LOL. Although it does seem like when a lot of people went over to TOS, it calmed down a little about this. And I don't just mean YOU per se, as there are others that are in agreement.
Personally, I like the rifles a lot. So.. I'm with you. Whether or not it's more popular than a carbine, I'd say were still pretty far from that. But as long as I've been coming to this site, this topic comes up time and again. And I say the only reason it does is because rifles do have their upsides and some people seem to get that. |
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Posted: 3/17/2015 3:34:38 PM EDT
[#34]
looks great! guess the only real question is.. aside from accuracy..do you notice any real difference with it while using. like mobility or weight? i would think not.. i too want a 20" with fixed stock. have been looking for a while but just not into the whole "build" my own. wish there were more 20's on the market.
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Posted: 3/17/2015 5:34:29 PM EDT
[#35]
Quote HistoryQuoted:
looks great! guess the only real question is.. aside from accuracy..do you notice any real difference with it while using. like mobility or weight? i would think not.. i too want a 20" with fixed stock. have been looking for a while but just not into the whole "build" my own. wish there were more 20's on the market. Aside from a tad more weight in the front, my 16" mid-length and 20" Government Profile rifle handle about the same. I can get my hand out further on handguard on the rifle, so that helps offset the slight difference. Accuracy is the same for both. For confined spaces, I wouldn't consider the 20". Aside from that, it's a wash. |
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Posted: 3/17/2015 5:45:01 PM EDT
[#36]
Quote HistoryQuoted: About 5 years ago you would've started a flame war that lasted days and eventually would've been banned for that kind of blasphemy. In fact, the only way you're getting away with it right now is because your not in AR discussions. LOL. Although it does seem like when a lot of people went over to TOS, it calmed down a little about this. And I don't just mean YOU per se, as there are others that are in agreement.Personally, I like the rifles a lot. So.. I'm with you. Whether or not it's more popular than a carbine, I'd say were still pretty far from that. But as long as I've been coming to this site, this topic comes up time and again. And I say the only reason it does is because rifles do have their upsides and some people seem to get that. Quote HistoryQuoted: Quoted: 20 is the new 16. About 5 years ago you would've started a flame war that lasted days and eventually would've been banned for that kind of blasphemy. In fact, the only way you're getting away with it right now is because your not in AR discussions. LOL. Although it does seem like when a lot of people went over to TOS, it calmed down a little about this. And I don't just mean YOU per se, as there are others that are in agreement.Personally, I like the rifles a lot. So.. I'm with you. Whether or not it's more popular than a carbine, I'd say were still pretty far from that. But as long as I've been coming to this site, this topic comes up time and again. And I say the only reason it does is because rifles do have their upsides and some people seem to get that. Hell I don't give a shit. The 20incher has many positives and im comfortable with it. Long live the AR rifle!! 20Inch baby!! |
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Posted: 3/17/2015 6:48:18 PM EDT
[#37]
you cant really consider length when you use 2 different stocks.
With same stock its 4 inch difference, The advantage to something being 4 inches shorter has to do with its use. The advantage to a collapsible stock is that if you put on body armor you can adjust for the thickness. So, even though you like it fully extended it will be too far out when you wear thick clothes or armor. The advantage to a shorter barrel is for CQB if your clearing a house the stock can closed to get in close and 4 inches makes a big difference. also if you plan to suppress it will be very long and much more front heavy If you're using it as a bench gun or sniping you'll be fine but you're limiting the functionality of it |
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Posted: 3/18/2015 6:25:16 AM EDT
[#38]
I've owned numerous 16" and 20" rifles over the years, with my latest Grendel acquisition I decided to split the difference and go with my first 18".
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Posted: 3/18/2015 11:00:41 PM EDT
[#39]
Quote HistoryQuoted:
you cant really consider length when you use 2 different stocks. With same stock its 4 inch difference, The advantage to something being 4 inches shorter has to do with its use. The advantage to a collapsible stock is that if you put on body armor you can adjust for the thickness. So, even though you like it fully extended it will be too far out when you wear thick clothes or armor. The advantage to a shorter barrel is for CQB if your clearing a house the stock can closed to get in close and 4 inches makes a big difference. also if you plan to suppress it will be very long and much more front heavy If you're using it as a bench gun or sniping you'll be fine but you're limiting the functionality of it CQB you point the 20" rifle from your hip. |
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Posted: 3/19/2015 6:25:36 PM EDT
[#40]
I hope that's sarcastic.
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Posted: 3/19/2015 10:44:02 PM EDT
[#41]
I've got a 20" colt A4. Good choice!
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