Sunset AR-10 (PICS)


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Zak Smith
September 13, 2004, 11:46 AM
Rifle started out life as a JP Enterprises AR10, lightweight 20" barrel. The JP float tube was replaced by a PRI GenIII tube. Post-sunset mods included: Magpul M93A stock using the Paul Castillo buffer, proper muzzle threads, and a 308 Vortex. Paint job on receiver extension and float tube is Brownells ALuma-Hyde II OD Green.

http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/small/137_3712_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/?medium=137_3712_img.jpg)
http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/small/137_3713_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/?medium=137_3713_img.jpg)
http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/small/137_3721_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/?medium=137_3721_img.jpg)
http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/small/137_3729_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/?medium=137_3729_img.jpg)

Rest of the pictures http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/

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Badger Arms
September 13, 2004, 12:18 PM
Need a green grip with that monster. Without the ban, you can call that adjustable stock a telescopic stock and still feel good about it in the morning. Is it a flash suppressor or is it a muzzle brake? Who gives a $&%@!

Seventhsword
September 13, 2004, 04:37 PM
Hey Zak,

That is one sweet rifle!! :cool:

atek3
September 14, 2004, 01:06 PM
whoa, that thing looks ready to hop up and kill some babies...you better put a non collapsing stock and permanently affix the muzzle device...that MIGHT tame it a bit.

atek3

artherd
September 14, 2004, 03:11 PM
Zak, sweet rifle, can you see your impacts in the ACOG now?

Zak Smith
September 14, 2004, 03:16 PM
On a white target, I think so.

Correia
September 14, 2004, 04:47 PM
Now that is a He-Man class rifle. :)

Where are you going to stick the bayonet?

Zak Smith
September 14, 2004, 05:53 PM
All I need for He-man is a set of irons.. the Troy front and LMT rear would work well. A better set of eyeballs would help, but I make do...

-z

admar2
September 14, 2004, 10:25 PM
she's a real beaut!!!

uglygun
September 14, 2004, 11:00 PM
I'm nearly finished with Miss Piggy, god she weighs a ton but she's more of a position rifle and not so much a walkin gun. Waiting for a proper buffer to use with the Magpul M93A that is sittin here waiting to get installed, no luck yet. Scope is gonna get replaced with a 3.5-10x or 4.5-14x Leupold Long Range mildot.

http://home.bak.rr.com/varmintcong/misspiggy.jpg

MiniZ
September 15, 2004, 09:16 AM
Awesome! (Both rifles..)

Bacchus
September 15, 2004, 12:59 PM
Wow. Can I go to the range with you?

Zak Smith
September 15, 2004, 11:39 PM
With the Vortex instead of the JP BC comp on the muzzle, it has substantially more recoil. Shooting nose to charging handle is a little more exciting...

Sighting it in at 55 yards with a TA11 ACOG (3.5X donut reticle) got me 3-shot groups this size:

http://apollo.demigod.org/~zak/DigiCam/AR10-misc/small/137_3787_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-misc/?medium=137_3787_img.jpg)

.. or about quarter-MOA center to center.

(I normally do 5 shot groups, but I was just getting it zeroed properly and didn't want to waste ammo.)

-z

atek3
September 16, 2004, 01:56 AM
do you have a long range (175 or 190 gr) load worked up for the rifle yet?

atek3

Zak Smith
September 16, 2004, 02:12 AM
For a while I was using the Black Hills 175gr, but then I found out that FGMM 168gr shot about twice as well.

I plan to work up a 155gr Palma load soon. It has almost the BC of the 168's, but is launched at 150 speed.

If I need to shoot further than that, I'll haul out the 50.

-z

atek3
September 16, 2004, 02:30 AM
I hope yer an expert wind doper :)

MP-44
September 17, 2004, 06:09 AM
That is just too friggin cool!!!

FNFiveSeven
September 17, 2004, 07:41 AM
uglygun, why the wait for a "proper buffer"? What's wrong w/ the standard carbine buffer?

Zak, what is the "Paul Castillo buffer"?

and what is that black rubber tarp looking thing on your scope, some kind of cover for the fiber optic? why use it?

Zak Smith
September 17, 2004, 01:23 PM
atek3,

At 800 yards, a 175gr @ 2600fps drifts 43" (10mph). The 168gr @ 2600fps drifts 48". A 155gr Palma at 2700fps drifts 45". That's really not much difference.

blackrazor,

Armalite's AR10 telestock has a receiver extension slightly longer than the CAR15's. Thus if you were to use a CAR receiver extension (aka buffer tube) with Armalite carbine buffer, it would bottom out before reach maximum design travel- the bolt carrier wouldn't get all the way to the rear.

Paul Castillo ( jenpaul@taosnet.com ) did some R&D on this problem and developed a short, stainless buffer using a tungsten deadweight which allows use of any CAR length receive extension-- in this case, the Magpul M93 stock.

The "ACOG Prophylactic Device" (APD) you see on my TA11 is a piece of bicycle inner tube I use to moderate the brightness of the fiber-optic-lit portion of the reticle. When the reticle is very bright, it appears larger and seems to obscure more of the target. Dimming it down to a dull red or all the way to black by pulling the rubber over the entire fiber-optic tube makes precision firing easier, especially on small targets.

-z

atek3
September 17, 2004, 01:44 PM
you're right, that's interesting.

atek3

Zak Smith
September 18, 2004, 07:52 PM
With AHII on gas block and Vortex
http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/small/138_3825_img.jpg [ link to larger image ] (http://apollo.demigod.org/~zak/DigiCam/AR10-Sunset/?medium=138_3825_img.jpg)

45R
September 18, 2004, 08:15 PM
Those are really nice rifles!!!

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