223 AR – Remington R15

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223 AR

My 223 AR started out as a plain Jane mil-spec rifle with a 6 x 24 – 50 mil-dot scope.

When I first started thinking about another 223 Rem of course the AR (Armalite Rifle) came to mind.  I have two other 223 Rem, both in bolt guns with longer barrels.  Many times while on a prairie dog town in the early spring I’ve thought about follow up shots.  With the bolt guns you have the five or six rounds that takes time to bolt through your rifle. Then It takes some time to get loaded up again.  With the 223 AR and 20 round mag you can shoot for awhile.  I still only fire five or six rounds at a time, but it’s faster. 

I had several problems with the stock mil-spec rifle.  The stock was way to short for my long arms.  The trigger was about 6 lbs.  And I Also had trouble staying on my target from recoil.

Installation of an adjustable stock and a V-TAB (Vertical-Tactical Adjustable Buttstock) on my Remington R15 AR

Finally changed out my stock to get better length of pull and a better sight picture.  The mil-spec stock was way to short for my long arms and neck.  I couldn’t get down on the stock to be able to see straight down the scope correctly.  The Fast Acquisition buttstock Is great for the tall people of the world with long arms and neck.  In my case with a mil-spec stock on my Remington R15 I had to change the stock and buffer tube.  Those that have an adjustable stock already may only have to attach the V-TAB itself.  In the video below the difference between the standard position longer stock and the installation of the V-TAB can be seen easily for the longer neck and arm people.

The parts kit, buffer tube and spring, and adjustable stock I got from:

Rocky Mountain Guns, Inc out of Aurora, Co at:

rmg15.com (website) and (E-mail) rmguns@yagoo.com

The V-TAB is from Fast Acquisition of Loveland, CO at:

fastacquisition.com (website) and (E-mail) of fastacquisition @gmail.com

Hiperfire and their “Hipertouch 24” adjustable trigger for the AR15/10

My rifle is a 223 AR Remington R15 mil-spec with a 1 – 9 twist and a 22 in barrel.

Luckily I was able to shoot 40 gr VMax up to 55 gr VMax, with good results.  I don’t shoot any FMJs at all, they ricochet very easy.  Ranchers don’t like hearing the noise or the fact they have to come down somewhere.

Adding a few things to my 223 AR, a new HIPERFIRE trigger, muzzle brake, new stock with spring and buffer tube, and a V-TAB (Vertical – Tactical Adjustable Buttstock.  I ended up with a shooter.  One other small item I added was a “Accu-wedge”.  It’s nothing more than a small piece of rubber that fits in the LOWER under the back takedown pin to tighten the contact between the UPPER and LOWER.

With this AR being a 223 Rem, not 5.56 NATO, I can shot the ammo loaded for my other two 223 Rem.  The difference between the two (223 Rem and 5.56 NATO) is the length of “leade, throat, or freebore”.  Whatever you want to call it, they all meaning the same thing.  It’s a portion of the barrel with the rifling reamed away and is the distance between the mouth of the cartridge and the point at which the rifling engages the bullet.  The longer the throat, the higher the pressure round you can use.  The 5.56 NATO round runs at a higher pressure to facilitate automatic fire and the heaver bullets. 

Therefor don’t shoot 5.56 NATO in a 223 Rem chamber.