AR Platform Thread

5681 Views 34 Replies 8 Participants Last post by BT380, Oct 26, 2012

SHOOTER13

Discussion Starter · Sep 26, 2012 (Edited)

Here's a thread dedicated to the AR platform...post some pictures and details of what you own...

This one here is my pride and joy...an Olympic Arms CAR-97, bought during the height of the Clinton Assault Weapon Ban in the late 90's. She is chambered for the 5.56x45mm NATO cartridge...and does not have a bayonet lug and originally had a pinned collapsible stock as that was two of the AWB provisions at that time. I have since replaced that pinned with a six position adjustable stock, making it a handy carbine in tight spaces as well as a tack driver out to a few hundred yards.

Olympic Arms is one of the few AR15 manufacturers to make every major component part in-house. They have been found to constantly meet the rigid specifications of military, government and law enforcement agency contracts. Olympic Arms has provided firearms for Law Enforcement and Government agencies around the globe, including every branch of the U.S. Armed Forces.

Olympic was also the first to introduce features now seen as commonplace on the AR15 platform. It was the first company to produce flat-top upper receivers, free floating aluminum hand guards, pistol caliber conversions, and AR-15 based pistols. They also manufactures many AR-15s in calibers other than the standard 5.56x45mm. Olympic was the first in the industry to offer AR15 style firearms in 9mm and .45ACP, 10mm, 7.62x39mm, and the Winchester Super Short Magnum cartridges.

SPECS

1:9 twist rate
16" 416 Black Oxide Stainless Steel heavy barrel w/muzzle break
A2 forged upper/lower receiver
Pachmayr grips
(shown w/ red dot sight)

200 yards...using Hornady 5.56 NATO 55gr GMX Superformance (HEAD)
200 yards...using Hornady .223 REM 55gr TAP FPD (CENTER MASS)

Shot bench rested over a Caldwell Bag...utilizing my Winchester Spotting Scope 15-45X60mm

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BersaOwner

· #2 · Sep 27, 2012 (Edited)

You beat me to it again Shooter13!
But since you did here is my first AR build.
It is a S&W M&P AR15 chambered in 5.45x39.
I build AKs so I have many AK74s in this cal. so I didn't want to change since the ammo was so cheap.

It was built with a complete S&W upper it shoots great even thou it is 5.45x39.

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SHOOTER13

Discussion Starter · #3 · Sep 27, 2012

Very nice build...thanks for sharing !!

SHOOTER13

Discussion Starter · #4 · Sep 27, 2012 (Edited)

Here's a picture of my other Olympic Arms AR...an A2 I bought for my wife ( SGM USA CID 28 years of service ) when she retired...

AR-15 Specifications

Receiver Material: 7075 T6 Aluminum Forged Receivers Machined By Olympic Arms

Receiver Finish: Black Matte Anodized Receivers, Parkerized Steel Parts

Action: Gas Operated Semi-automatic Action

Upper Type: A1 w/ adjustable windage only

Front Sight: Elevation adjustable post w/ bayonet lug

Handguard: Fiberite carbine length caps

Barrel: 16", button rifled, 4140 chromemoly steel

Chambering: 5.56 NATO

Bore: Long-life non-chromed bore

Twist Rate: 1:9

Muzzle: A2 flash suppressor

Stock: A2 w/ trapdoor

Length: 35.75"

Weight: 7.37 lbs

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BT380

· #5 · Sep 27, 2012

My 1999 Colt MT 6551 5.56 Hbar. 20" heavy 1X7 twist barrel, Real good hog killer.

As I got it.

As it is now.

Added a 3X9X40 Bushnell Banner scope, UTG rifle length free float quad rail, Winchester 13" bi pod and bi pod rail mount adapter. Added 5 30 and 5 20 rd magpul mags. I've taken 18 hogs this summer with it and the furthest was 300 yds. It shoots the Remington 64 gr. soft points the best in the 1in7 twist.

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SHOOTER13

Discussion Starter · #6 · Sep 27, 2012

Awesome lookin' hog killer BT !!

I've hunted some coyote on a friends property in NY state with my AR...haven't had a chance to hunt some bacon yet...

stanger1944

· #7 · Sep 27, 2012

Here is my first build. Well sorta I put together the lower and bought the DPMS upper in the 5.56/223 orientation. Loving it.

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SHOOTER13

Discussion Starter · #8 · Sep 27, 2012

Looks good man...

What optics are you thinking about using...?!

stanger1944

· #9 · Sep 27, 2012

I got a cheap red dot for now. Entire build including cheap red dot and four mags cost me about $700. Budget build and it shoots great. So far not a hiccup.

SHOOTER13

Discussion Starter · #10 · Sep 27, 2012

Yea...I use a red dot most of the time myself...

Got a 4 power on a seperate rail that I swap in and out when need be.

BT380

· #11 · Sep 27, 2012

Is that the Oracle upper you have stanger1944. I have a DPMS Oracle OR and got the whole rifle for $599 last year and see the all over for $$699. I love mine, I set it up for home defense and close in work. Follow DPMS instructions on breaking in the barrel and you will be able to shoo 1" groups at 100yds easy with it. I did and man it shoots tight groups with 55 gr. M193 Lake City ammo.

stanger1944

· #12 · Sep 27, 2012

Yeah BT that is the oracle upper. The gun is probably capable of that sort of grouping but at this time the shooter is not. Hopefully one day I will get there though.

BT380

· #13 · Sep 28, 2012

stanger1944 said:
Yeah BT that is the oracle upper. The gun is probably capable of that sort of grouping but at this time the shooter is not. Hopefully one day I will get there though.

Thats why you shoot off a bench. It really helps to get your eye, hand and breathing together.

bhale187

· #14 · Oct 2, 2012

I'd love to hear how accuracy compares between cheap 5.45x39 ammo vs cheap 223 ammo in the ar15 platform.

BersaOwner said:
You beat me to it again Shooter13!
But since you did here is my first AR build.
It is a S&W M&P AR15 chambered in 5.45x39.
I build AKs so I have many AK74s in this cal. so I didn't want to change since the ammo was so cheap.

It was built with a complete S&W upper it shoots great even thou it is 5.45x39.

BersaOwner

· #15 · Oct 2, 2012

bhale187 said:
I'd love to hear how accuracy compares between cheap 5.45x39 ammo vs cheap 223 ammo in the ar15 platform.

The 5.45 accuracy will do just about the same as the cheap .223 in an AR.
I don't shoot the corrosive ammo through it (too hard to clean)but the steel cased 5.45 Silver Bear non-corrosive ammo is what I use at only 18.5 cents per round it is still cheaper than the .24 to .28 cents per round on the cheap steel cased .223 or the cheap .30 cents per round brass case.
My AK74s use the corrosive 5.45 at 10.8 cents per round, love shooting the AKs.

BersaOwner

· #16 · Oct 3, 2012

Here is a little something else I found out.
The AR 100 round plastic beta mags will feed 5.45x39 just as good as it does .223s when shooting the 5.45 AR upper.

5.45x39

.223/5.45

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SHOOTER13

Discussion Starter · #17 · Oct 3, 2012

Wow...that's good to know !

What manufacturer is that drum from...?

BersaOwner

· #18 · Oct 3, 2012

Here is where I got it.
http://centerfiresystems.com/drum-ar-100.aspx

SHOOTER13

Discussion Starter · #19 · Oct 3, 2012

Thanks for the link...!

Pancho_Villa

· #20 · Oct 6, 2012 (Edited)

Only one I have left. My very old Colt AR. SP1. Got 2 bayos now, a Colt marked bipod, and even have the old triangular forarm that came on it. The P-grip has been replaced and a more modern forend. No other mods except I I now use a 3x9x40 scope onit cause I can't see the irons. Don't care much for all the rails and vertical forend grips etc. Don't shoot it much anyway. Had a Bushy and an Oly Arms, but had to sell then when I lost my job 6 years ago. But I couldn't give up this old thing.

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