"Best" is mostly a matter of opinion, but.....
Not long ago the answer would've been "Stick to the ABC's" (Armalite, Bushmaster, and Colt).
These days, with over 40 manufacturers making AR15's, M-4's, or simply lower receivers, it's very hard to say who makes "the best" AR anymore.
The "ABC's" are still a save bet, but many companies are cranking out exceptionally high quality AR's.
(Mark) LaRue makes an incredibly well-built receiver that's CNC machined out of solid 7075 aluminum. The trouble is - you have to pay a large premium,.. IF you can find one.
There are still Diamonds around (machined out of billet stainless steel). They're very precise, very strong, very expensive, and very hard to find though.
Someone else is still making a SS AR, but I can't remember who it is right now (DPMS maybe,.. not sure. I'll post when I find out).
JP Precision makes a complete AR now (made only precision replacement and competition parts until recently). Everything they make is top of the line stuff!
There are other high-end AR's out there (like MagPull), and the numbers are growing every day.
What is the manufacture date of a Colt AR15 serial number SP 18622?
According to info available on ar15.com, your weapon was manufactured in either late 1972 or early 1973. I own one made in 1974.
A combination of mechanical processess and hand assembly.
How much is your 1979 SP1 ar15 rifle worth?
As of today (10/18/08) $900 ~ $1,370 depending on condition.
Colt - would be your best bet if you want a name brand - and something reliable.
Does a Colt AR-15 with a seial number of SP 346986 have the small pins for the FCG or the large?
If it's Colt, it'll be small hole.
What is the rifling twist in a 20 inch barreled Colt SP1 AR 15?
It should be stamped on the barrel. If it's a 1 in 7 twist, it will read 1:7.
How much is a AR-15 colt rifle worth?
Depends on a lot of factors. What caliber, what barrel length, is it an A1, A2, A3 or A4, does it have the box an papers it came with, any accessories? Can range from 500-1500.
Is a work permit required for 15 year old to work in Ft Smith AR?
A work permit is required for a 15 year old in Arkansas, including Fort Smith. Those older than 15 do not require one.
What model rock river arms AR-15 with serial CM08315?
You will have to call Rock River Arms to find out.
How much does an AR-15 rifle cost?
$1200 in 2012
You can get a lower receiver for an AR-15 for about $100 which must be purchased through an FFL dealer. You can the rest for about $500 as a kit.
What is the value of a colt ar15 223 caliber rifle model sp1 serial sp83910?
Depends on condition, etc. Price range from 500-1000
The Ruger Mini-14 has never been able to accept the M16/AR-15 magazine. A proprietary magazine for the Mini-14 has always been used.
If you find a way to convert a Mini-14 to accept STANAG magazines, I'm open to suggestions, but I have not been able to find one yet.
How do you fit an m60 bipod to an ar15?
Colt made a special collar that slid on the barrel about 1.5 inches behind the barrel. The collar had cut to limit the cant of the bipod and was held by a roll pin. The version I saw was on a special HBAR barrel (.750 dia.). The standard M60 bipod fit between the collar and the flash hider.
How much does a AR-15 rifle cost?
$1200Kplus tax. The ammo is going to cost $400/1000 rounds. in 2012
What is date of manufacture of colt ar-15 sp1 serial no sp45281?
Looks like a 1975 SP1. Here's a link to Colt Ser# http://www.biggerhammer.net/ar15/ar15serial.html Good luck 7.62