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Opinion on Colt AR-15 SP1? (shooter's vanity post)

Posted on 01/01/2008 8:32:26 PM PST by Jonah Hex

I'm getting a hankering for a retro AR-15 (chrome-lined barrel, A1 stock and sights, slab side, triangular handguards, lightweight barrel, etc.). I found a number of used Colt Sporters chambered in .223 with a 1:12 twist, but I also found a slightly cheaper new retro reproduction non-Colt rifle with a 1:9 chromed barrel in 5.56 but with a round-assist and shell deflector.

I suppose the question is, are there any Freepers with experience on the Colt SP1 who are willing to share their opinions on this rifle?


TOPICS: Your Opinion/Questions
KEYWORDS: ar15; banglist; colt; evilassaultrifles; retro; sp1
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One of my few vanity posts. (smile)
1 posted on 01/01/2008 8:32:28 PM PST by Jonah Hex
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To: Jonah Hex

Im partial to the Ruger Mini 14 Ranch gun in .223 but respect your hankering for the Colt in 5.56. Buy whatever makes you feel happy. We’ll call on you when needed.


2 posted on 01/01/2008 8:38:59 PM PST by samadams2000 (Someone important make......The Call!)
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To: Jonah Hex

Who makes the one you call a non-Colt?


3 posted on 01/01/2008 8:40:44 PM PST by Kirkwood
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To: Jonah Hex
Nice nostalgia pieces. I don't have any experience with the non-Colt civilian sporters, but shot a number of non-Colt M16A1s in the Army. They all worked fine.

IMHO, the only justifications needed for buying any firearm is the desire and the means (and in the case of, "means" it can easily be a willingness to forego other desires).

If you're looking to use it as a tactical firearm, there are probably better choices suited to your specific needs, but as a general purpose rifle with tons of aftermarket options out there it's not a bad choice.

IMHO, as a general purpose, utility rifle that you can bounce around in the back of a pickup, and also has a great deal of nostalgia, it's hard to beat an M1 carbine.

4 posted on 01/01/2008 8:42:19 PM PST by Joe 6-pack (Que me amat, amet et canem meum)
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To: Jonah Hex

Search the archives here:
http://www.ar15.com/forums/board.html?b=3


5 posted on 01/01/2008 8:43:49 PM PST by Kirkwood
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To: Jonah Hex

http://www.ar15.com/forums/board.html?b=3
Happy new year...


6 posted on 01/01/2008 8:44:15 PM PST by Tigen (Live in peace or rest in peace!)
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To: Jonah Hex
I built an SP1 from a Rock River receiver and various internet parts. It's great, as long as you use the old M193 55-grain bullets only.

The newer, heavier bullets won't stabilize in that 1:12 barrel. The "surplus" supply of 55-grain ammo is becoming extinct.

7 posted on 01/01/2008 8:46:55 PM PST by Sender (You are the weapon. What you hold in your hand is just a tool.)
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To: Kirkwood

beat me to it 26 sec


8 posted on 01/01/2008 8:48:52 PM PST by Tigen (Live in peace or rest in peace!)
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To: Jonah Hex

waiting-for-gunporn-postings...BUMP!


9 posted on 01/01/2008 8:49:24 PM PST by VOA
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To: Jonah Hex

What do you want to do with it? The 9” twist is better for heavier bullets. The .223 has more offerings, but the 5.56 may be had in surplus, albeit currently not as surplus as in times past.

I have a .223 with the 12” twist and I use it for varmints with lighter bullets.


10 posted on 01/01/2008 8:50:56 PM PST by umgud (no more subprime politicians)
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To: Tigen

Glad to have you confirm my post.


11 posted on 01/01/2008 8:52:07 PM PST by Kirkwood
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To: Jonah Hex
The Colts are reliable but they are also politically correct, i.e., they aren’t mil-spec and you can’t swap part’s with other “real” AR-15’s. Check out Bushmaster or DPMS. Make sure you get a mil-spec rifle with a 5.56 chamber - not a .223 chamber - if you intend to use it as a weapon rather than a conversation piece (or a hunting rifle). In general, 5.56 rifles are slightly less accurate but much more reliable and can fire mil-spec high pressure ammo.

Also I would recommend a flattop with a SureFire light and an Eotech red dot sight but if you have to go retro the A2 sight is much better than the A1 - again if you are going to use it as a weapon. I have two DPMS rifles, a flattop and an A2 carbine.

12 posted on 01/01/2008 9:29:46 PM PST by Uhaul
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To: Jonah Hex
I purchased my SP1 in 1972 and have fired over 12,000 rounds through it. Most recently over 600 rounds at Jackrabbits in Nevada. It is reliable and does the job, just like the M16 did in Vietnam.

A 55 grain bullet will do everything that a 223 Rem / 5.56mm size cartridge was designed to do.

The later versions with a 1:7" twist to stables heavier bullets suffer in relative accuracy and killing ability (man or beast). The fast twist overstablizes the longer, heavier bullets and they just bore a hole through the target without causing much damage.

The 1:12" twist with 55 grain bullets is just barely stable in the air and very unstable in the denser medium of the target. The unstability in the target causes "key holing" with much greater damage.

There was no complaints related to "lack of killing power" with the M193 Ball bullet in Vietnam like there is today in Iraq and Afghanistan with the 62 grain M855 bullets.

If you are purchasing the rifle for serious purposes, the 1:12" twist with 55 grains bullets is clearly superior.

If you want to impress your friends with all of the doodads that you can hang on a 'modern' M4 type weapon , you should purchase the latest versions. If you value substance over appearance, the SP1 can't be beat. It does the job. Period.

13 posted on 01/01/2008 10:05:55 PM PST by Buffalo Head (Illigitimi non carborundum)
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To: Jonah Hex
The Colt SP1 (green label) is as close as you will get to the original Stoner designed AR-15. The Stoner kicked butt ‘til Army Ordinance screwed with it and caused all the problems in Vietnam. The original had a 1 in 14 twist. The SP1 is very close to that and very lethal with 55 grain bullets. It’s all you need. Want to reach out farther? Get a bigger caliber.
14 posted on 01/01/2008 10:18:39 PM PST by nralife
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To: Buffalo Head

Right on!


15 posted on 01/01/2008 10:22:52 PM PST by nralife
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To: Sender
The "surplus" supply of 55-grain ammo is becoming extinct.

Wolf, Russian Ammo, still makes the 55 grain ammo and a real decent price. Go to Ammoman.com and you will find it. The new Wolf Ammo is polymer coated and the AR-15 will like this stuff. The old lacquer coated stuff would jam as when the chamber got hot it would leave lacquer in it and foul it. Also the new Wolf has a cleaner burning powder.

16 posted on 01/01/2008 10:28:12 PM PST by cpdiii
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To: Buffalo Head

Buffalo Head is right on the money from a military perspective as they are limited to FMJ bullets. If you are going to stick with FMJ then 1/12 twist with 55 grain is the way to go.

However, please keep in mind that you are not limited to FMJ ammo. A wide variety of 223/556 defensive and hunting ammo is available which provides superior performance to the M855 and M193 mil rounds (Hornady TAP would be one example).

If it were me, and I’ve been down this path, I would opt for a 1/7 or 1/8 twist shooting HP rounds in the 69-77 grain range. If you choose to go with a modern (M4 style) rifle, please look at Lewis Machine & Tool. Quality is superior to almost every other manufacturer and you don’t have the politically correct features (oversize trigger pins, half-circle bolt carriers) that you have to put up with from Colt.

Just my two cents.


17 posted on 01/01/2008 10:34:40 PM PST by Radio_Silence
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To: Buffalo Head
purchased my SP1 in 1972 and have fired over 12,000 rounds through it. Most recently over 600 rounds at Jackrabbits in Nevada

Was it good eatin'? ;-)

I was once issued an M-16 made by Fridgidaire. No lie.

18 posted on 01/01/2008 10:38:28 PM PST by VeniVidiVici (Jay Grodner stands accused of keying a Marine's car. He's also a lawyer.)
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To: Radio_Silence
Just wonder what you would use it for, for home defense, naw, for hunting, naw, just where does it fit in.
19 posted on 01/01/2008 10:38:41 PM PST by BooBoo1000 (Some times I wake up grumpy, other times I let her sleep/)
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To: BooBoo1000

My post was written from an AR for home defense perspective. TAP rounds are very good for this purpose. Of course, so is a 12 gauge loaded with #7.

Apologies if I strayed from the original intent of the thread which may have been military repro.


20 posted on 01/01/2008 10:49:38 PM PST by Radio_Silence
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