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Build your Ultimate AR

Discussion in 'Rifle Country' started by Dimis, Jun 7, 2009.

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  1. Dimis

    Dimis Member

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    if funding were not an issue and you could afford any AR (still semiauto 16 inch barrel min) for home defense what would you buy/build and why?

    would it be impingment(sp) or piston?

    what caliber would you choose?

    what options would you get?

    what accessories would you stick on or in it?
     
  2. P.B.Walsh

    P.B.Walsh Member

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    For a gas piston: POF .223 Recon with Troy front and rear folding sights with tritium, EoTech or Aimpoint, magazine coupler with 2-30 round PMAG's, VTAC handguard (if they can fit on a gas piston), Tango Down VFG, JP Short Range Tactical Sight, some kind of Surefire flashlight, and a Vortex flash hider.

    For direct impengment: POF lower, LaRue Stealth 16" upper, and all of the accesories that I just mentioned.

    This is what I'd use if I had unlimited funds, but mabey in .308 (can't decide), oh darn......
     
    Last edited: Jun 8, 2009
  3. P.B.Walsh

    P.B.Walsh Member

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    C'mon y'all let's here those very insightful opinions!!!!!
     
  4. Dimis

    Dimis Member

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    i guess everyone loves off the shelf Olympic Arms
     
  5. jdh

    jdh Member

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    Money no object Home Defense AR HUH? Ok I'll play.

    Start with a quality lower, don't care what is stamped on the side of it, and fill it with the best parts available. An ambi-safety lever would be the only "upgrade" needed. Put a fixed A1 length stock on it. No telescoping stock of any kind. I can live with an A2 pistol grip.

    A2 upper. My house and grounds are never totally dark, don't need NVDs and don't want to have to fumble around trying to turn on a reddot or holo sight. Upper will have the FA, better to have it and not need it than to need it and not have it.

    I know you said 16" but you also said ULTIMATE so it will have an 11.5" barrel with a Gemtech on it to bring the total length to just over 18". Why? Because gunshots in a confined space are LOUD and I want to be able to hear if there are any other threats.

    The barrel will be surrounded by a Quad rail free float tube. A vertical foregrip on the bottom. Right side Surefire Milspec with P61 module. Now I am not a big laser fan but there is the intimidation factor so a laser module will be attached just to let the bad guy know I know where he is when the dot appears on his chest. If that stops him and I don't have to pull the trigger so much the better.

    The gas system has worked for nearly 50 years. I see no need to add more moving parts that need to be cleaned and maintained which complicate the take down process.

    There you go.
     
  6. kwelz

    kwelz Member

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    I prefer simple.

    Colt 6920 with DD Omega or a 6940.
    Magpul MIAD or MOE Grip.
    VLTOR Modstock (I personally like the clubfoot best)
    Tango Down VFG
    Surefire Scoutlight
    Aimpoint CompM/ML3
    Troy flip BUIS
    Magpul ASAP plate and M2 Sling

    That is pretty close to my Home defense carbine. But if I had unlimited funds and no wait times that is what I would have.
     
  7. RP88

    RP88 Member

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    upper:

    midlength with 16" 1x7 twist chrome-lined barrel, standard F-marked A2 sight, YHM 2-pc quad-rail, some sort of vertical grip, full-auto carrier with mil-spec'd bolt and proper staking, a phantom 5c2 flash hider, and the A3 "flat-top". I'd then put an Aimpoint ML-something or EOtech 512 (or whichever runs off of normal AA batteries) with a quality BUIS

    lower:

    a decent lower, an ergo grip, and a milspec-diameter carbine stock with that cheapo rubber buttpad you can tack on for five bucks. Also would like the fun switch if laws are also no object. Then I'd put the good ol' silent sling onto it. Nothing fancy needed.

    and just about all of "the chart" would be X'd for it, save for heat shields and the warranty (I would build it to cut costs)

    So far, I'm close to finishing such a rifle, but it will not of course be with the fun switch
     
  8. Walkalong

    Walkalong Moderator

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    Noveske......with accessories.....:)
     
  9. theotherwaldo

    theotherwaldo Member

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    I've got a basic AR flat-top, 20'' hb, and two sets of Barbie clothes: -a1 and a4.

    I have no desire fore more.
     
  10. P.B.Walsh

    P.B.Walsh Member

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    The OP stated a minimum of a 16" barrel.
     
  11. TeamRush

    TeamRush member

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    Piston, most certainly piston.
    I've spent the last 32 years cleaning gas systems and I'd like a break for a while!

    AR-15 would be standard .223 Remington,

    AR-10 would be .300 Winchester Short Magnum.

    The best match grade barrel money can buy,
    Full floating hand guard,
    Good trigger (doesn't have to be outrageously expensive)
    Flat top receiver,
    The best optic Leupold makes with rings.

    Hunting camo finish.
    I actually USE the sights, so I don't need all those goofy lights, lasers, ect.

    A good sling would be a must...

    I'm not stupid enough to get caught with an AR as my only home defense choice!
     
  12. jdh

    jdh Member

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    PB are you the thread police and did you read the rest of the sentence?

    11.5" barrel + 7" suppressor = 18.5". Like I said, just over 18 inches, well over the required 16".
     
  13. P.B.Walsh

    P.B.Walsh Member

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    Whacha gonna do, whacha gonna do when they come for you, bad boy, bad boy.....

    Just kiddin, I just meant the barrel, I guess your in the right since the OP didn't specify if that ment suppressed or not.

    My bad. :)
     
  14. Dimis

    Dimis Member

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    nah just over all 16 inches but seeing as how its a suppressor you still gotta get stamped for that
    no harm no foul
     
  15. P.B.Walsh

    P.B.Walsh Member

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    I sure do wish we could get SBR's in Alabama!!!!!

    We can have silencers and full-auto, but no darn SBR's!!!!!!!! :banghead:
     
  16. Dr.Rob

    Dr.Rob Moderator Staff Member

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    You CAN buy an 11.5 inch barrel with a permanently attached 5.5 inch flash suppressor (CAR 15 style/XM177) without any special permit. That on a Colt 6920 lower with a flashlight mount on the fore end would be just fine for a home defense dedicated AR-15. It needs a real sling, in case you have to go outside or up on the roof.

    I think OLY still makes a CAR stlye shorty off the shelf, but I'd buy a Colt since money was no object.

    Again this is ONLY if I wanted a 'dedicated home defense' AR.
     
    Last edited: Jun 10, 2009
  17. Reid73

    Reid73 Member

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  18. iamkris

    iamkris Member

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    My own little slice of Purgatory
    I didn't go "cost is no option" but here's what I built last fall to thumb my nose at the Obamessiah

    • AeroPrecision multi-cal lower
    • Stag/CMT M4 upper
    • Badger Gen II TacLatch
    • RRA 2-stage NM trigger
    • VLTOR stock
    • WOA 18" SS SPR profile barrel and bolt
    • PWS FSC30 flash hider / comp
    • YHM front sight
    • Brownells HK-type rear sight
    • ERGO grip
    • Magpul triggerguard
    • MI low profile gas block
    • YHM FF rifle-length quad rail handguard
    • MI sling mounts
    • EoTech 511 (now with a 4x magnifier)
    • PRI mags

    2w6ap8w.jpg

    I researched both the 6.5 Grendel and 6.8 SPC pretty heavily and initially decided on the Grendel. It seemed to have all the terminal ballistic advantages of the 6.8 but with better exterior ballistics. I bought an AA Overwatch upper and built an 18" SPR.

    Building the upper was a nightmare...what with many delays and difficulties in getting parts (I only bought top-end parts for it). Brass was expensive, reloading info was scarce. In the end, accuracy was good but not mythical like the caliber has been built up to be. That is with factory and many variations of reloads.

    I realized I was trying to get a lightweight, handy CQB caliber with better performance than the 5.56 as well as a great long range caliber. While not completely mutually exclusive, it is difficult to do both. I still think the Grendel is an interesting caliber for what I REALLY WANTED TO DO (better ballistics, terminal out to 500 yards) the Grendel wasn't it. I sold the uppers and built a 6.8 upper.

    It is showing very good accuracy (hovering right around MOA), has better terminal effect than 5.56, can hang with a 308 for the distances that I'm interested in and has the advantage of much wider distribution. Grendel needs to be less "exclusive" if it wants to make up the gap.

    I've also decided that if I want a long range rifle semi-auto rifle, I should build a long range semi auto rifle...probably a AR10 in .260 Rem or 6.5 Creedmore.

    I had a very long phone conversation with John Holliger of White Oak Armament. There's a lot of talk about the SAAMI vs. SPC-II chamber and the pressures created in each...his view is that it is a lot of hoo-haw about nothing unless you are trying to hot rod the cartridge and make it into a .270 Win.

    Here's its brothers

    rs93k7.jpg
     
  19. Bartholomew Roberts

    Bartholomew Roberts Moderator Emeritus

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    Well here is what I have been shooting for a while now...

    [​IMG]

    Based on that rifle, which I like quite a bit, here is what I would do if I were going with a "cost is no option" AR15:

    1. 5.56mm direct impingement system

    Why: I already have the accessories, knowledge base and parts to support this system and it does everything I need it to do.

    Parts:
    Larue Stealth upper (or DD Upper if it is my own money being spent)
    16" midlength Noveske N4 barrel 1:7
    Young manufacturing BCG, properly staked
    PRI Gasbuster charging handle
    10" DD Lite rail or PRI midlength float tube
    PRI Rail-mounted flip-front
    Troy folding rear sight
    Magpul AR lower
    Sierra Precision pistol grip
    Magpul UBR stock
    Weapon Shot Counter
    Stock fire control group; but matched to give a nice trigger pull
    H buffer
    Aimpoint T1 with Magnifier in Larue mounts
    Trijicon TR21 crosshair in Larue mount
    ACOG TA33 red chevron in Larue mount
    AN/PVS14
    DBAL IR Laser/illuminator
    Surefire G2 w/Cree LED lamp on a angled mount
    Magpul rail panels (unless I went PRI tube)
    Surefire muzzle device
    Surefire FA556K Suppressor
     
  20. Dimis

    Dimis Member

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    IAMKRIS
    what is that last AR at the bottom of the pic of the "brothers"
    is that one of those modular AR lowers? or just a proprietary lower? or a modded magazine and i just cant tell?
     
  21. iamkris

    iamkris Member

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    Standard 5.56 DPMS lower with a mag block to accept unmodified Sten mags. Oly 9mm upper.
     
  22. P.B.Walsh

    P.B.Walsh Member

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    That Aero Pecision Multi-Cal Lower, does it take 6.8 AND 5.56?
     
  23. cameron.personal

    cameron.personal Member

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    I couldn't build just one... the best thing about ARs is that they are modular and can fulfill different roles. I wanted three carbines for my last builds that would handle and feel similar but be used for different roles. Effectively my interpretation of a SOPMOD SPR and a CQBR and a high volume general purpose HBAR rifle that could do both.

    Daniel Defense SPR 16"
    For the SPR I wanted a low(er) volume 16" mid-length that I could use as a 3 gun carbine, and as a precision rifle. For this I decided to go with a Daniel Defense SPR Complete Upper 16" tapered 1in7 twist LW50 Lothar Walther stainless barrel with a Wylde chamber, with the excellent Daniel Defense 12.0 lite rail that would not only free float the barrel but would give a generous sight radius for the BUIS and allow for attaching a QD bipod farther out as I prefer. The DD SPR upper comes with a hand matched Bolt Carrier Group from DD. I preferred the DD upper to the LaRue equivalent simply because I prefer the DD Lite rail and the reduced weight of the tapered LW50 barrel, which in my hands makes the carbine move and balance better. A Leupold MK4 MR/T 1.5-5x20mm illuminated SPR reticle scope I love the optics clarity but really like the SPR reticule and the M2 BDC turret, I ordered a second turret from Leupold so I have data and zeros for both the 62gr and 77gr loads. I mounted this in the LaRue SPR QD mount simply because has a rep for being the best, less to worry about. For a lower receiver I picked a LMT Defender 2000 with the 2 stage match trigger which allows me to make the most out of the Lothar Walther barrel. I covered the exposed rail with Magpul XTM panels. Troy BUIS simply because they are of excellent quality and once loctited in place I can forget about them.
    While I love the look of the MIAD from Magpul I was never able to get the feel right and after buying one for this rifle I removed it and replaced it with the rubber Ergo grip it just fits my hand better and now I have the Ergo on all my ARs. Lastly I added a Magpul UBR stock and the Vicker's Combat Applications sling. I am glad I removed the LMT SOPMOD and went for the UBR it is the best collapsing stock I have tried and it really balances the rifle out.

    I am really happy with the way it turned out and the way it performs, it balances well offhand, even with the bipod, and is amazingly accurate, producing sub 0.5 MOA all day with quality ammo.
    CamzSPR.gif


    LMT CQBR 10.5"
    The second AR is intended to be my take on a CQBR, so I purchased the LMT CQBR 10.5" 1in7 twist 5.56NATO upper, I immediately had the front sight post milled off and installed the Daniel Defense 10.0 lite rail, I used a Bravo Company M16 Bolt Carrier Group and an H2 buffer to slow the bolt down in this beast. A single stage mil spec trigger is great for high speed close range shooting. Since this is for close range carbine I find the EOTech to be my fastest CQB optic and went with the EOTech 552 mounted on the LaRue QD EOTech riser with the Troy front and rear BUIS for a lower 1/3 co-witness. Magpul UBR feels great on this shortie, I thought it might not balance a really short barrel like this but is is lively and feels great. Tango Down Vertical fore grip and a Surefire X300 make this SBR a great home defense carbine!
    CQB3.gif


    Colt HBAR 16"
    The third carbine was to be a "beater" high round count, general purpose rifle that I wouldn't mind using for "hard use" shooting with a more flexible twist rate to take advantage of the cheapest ammo that may be available, so I went with a Colt HBAR 16" 1in9 twist 5.56NATO chambered barrel from a Colt AR6721 and again used the excellent Daniel Defense 12.0 lite rail, I added an LMT Bolt Carrier Group for reliability with a carbine buffer. Lower receiver is an LMT Defender 2000 with a 2 stage match trigger and Magpul UBR stock. With the optic I can mount an EOTech 552 in the LaRue QD riser as it is so damn fast for close range shooting, the Troy BUIS gives me a lower 1/3 co-witness. I am also able to switch out to the Leupold MR/T 1.5-5 if necessary, and with the trigger and stock it feels just like the DD SPR above. Tango Down vertical fore grip out front to get a good handle on the 16" HBAR and long rail.

    Even with the HBAR this carbine balances much like the DD upper above... the funny thing is this Colt barrel has been very accurate, and may give the LW50 a run for it's money...

    This layout feels great and moves and points very naturally for me.
    CamzHABR01.gif

    The end result is three carbines that have a common look and feel, but more importantly perform really well for their niche. My wife used to like the DD SPR, because she could shoot sub MOA groups all day at the 100yard line, until she tried the CQBR....

    Now I am on the hunt for a Class III full auto lower that will work with these 3 :D

    Someone once said maybe I only had one lower.... so here is a family shot:
    3ARs2.gif

    While I sold a custom AK47 and another AR15 to fund these guys, I am not spending any more money on guns for awhile... :eek:

    Cameron
     
    Last edited: Jun 10, 2009
  24. P.B.Walsh

    P.B.Walsh Member

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    I'm jeleous!!!!!:)
     
  25. SHvar

    SHvar Member

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    Heres my new home defense AR, its gas piston. I added the bayonet for the picture, but for home defense it could come in handy.
    Ill add a flashlight, and possibly a verticle foregrip to it, and Bushnell T dot reticle Mp scope with the optional carry handle/rear sight, otherwise Im happy so far with how its equipped.
    m4gpbayo.jpg
     
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