AR build parties

Discussion in 'Rifle Country' started by taliv, Jul 25, 2016.

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  1. Darkbob

    Darkbob Member

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    I think the reaction rod comment is because different billet uppers, depending on their exterior dimensions, may or may not fit into whichever upper vice block you have. But, a reaction rod will always be able to mate up with the barrel extension.
     
  2. grampajack

    grampajack AR Junkie

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    As far as I know, that's the only way to install the barrel nut on a billet upper. I've never seen an upper vice block made for billet receivers, and even if there were you'd have to have one for every different receiver on the market, whereas the reaction rod will work with all of them. Magpul also makes something called a bev block, but the reaction rod is far superior.
     
  3. taliv

    taliv Moderator Staff Member

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    oh ok, i see. thanks!
     
  4. MistWolf

    MistWolf Member

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    If a billet upper will fit on an AR lower, it will fit on an upper receiver vice block
     
  5. WestKentucky

    WestKentucky Member

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    For such a wide range of possibilities, I would simply make a list of the required parts, then give general descriptions of each overarching type of build. Carbine, rifle, target rifle, competition rifle, pistol etc.

    I also would encourage folks to look for used parts. I built my rifle for about 400 bucks using a new lower, lpk, bcg, and barrel. Everything else was used and CHEAP but decent stuff. If a person wants a basic rifle, I bet they could put one together for about 350...new parts would basically be a lower, mag release and safety switch, and a bcg. You can find everything else used pretty easy from folks who swap the other stuff, often without ever firing the rifle. So call everything half off on the used side....and if a man hosts build parties he probably will know folks who want to move used parts.
     
  6. grampajack

    grampajack AR Junkie

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    I'm assuming you're talking about those DPMS blocks. Those are fine for certain things, but they're not okay for installing barrel nuts or muzzle devices. They place way too much stress on the receiver, especially if you're going up towards 80 ft lbs. There's a reason why not many people use them.
     
  7. MistWolf

    MistWolf Member

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    Using a Reactor Rod will place stress on the barrel pin because the Reactor Rod will not keep the upper from turning while torquing the barrel nut.

    The upper block I've got has a ridge going up into the upper to give it more support.

    If the muzzle device is so difficult to remove that a vise block should not be used, a set of barrel vise blocks clamped near the muzzle are needed.

    If it takes so much torque to install a muzzle device that using a vise block will damage your upper, you're using far too much torque.As a field expedience, I've held an upper between my knees to R&R muzzle devices.

    The r real reason so many use the Reactor Rod is because the upper can be repositioned without removing the Reactor Rod from the vise
     
  8. grampajack

    grampajack AR Junkie

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    I've never heard of the Reactor Rod, but it sounds like a knockoff. The Reaction Rod from Geissele (the one with the NSN number) is by far the best tool for the job. You're not going to hurt anything as long as you stay inside the 80 ft lbs max. It's used by untold numbers of armorers and no issues.

    The DPMS style block puts all the stress on the takedown lugs, which weren't meant for that. It's the absolute worst tool for the job. People report snapping off the front takedown lug with those on a regular basis. I can't imagine why they still sell them.

    If you don't want to spring for the reaction rod, then your next best option is to put the receiver into the vice sideways with some sort of stiff padding. Cutting boards seem to work the best. I've never tried this, but it's reported to work. Personally, I would just spend the 100 bucks on the reaction rod. You'll look more professional, nothing will get broken, and you'll be more likely to get good word of mouth.
     
  9. henschman

    henschman Member

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    I would consider the Lightweight and Basic Home Defense builds to be the same thing, and would use a 16" Faxon Gunner barrel (nothing wrong with the BCM ELW barrel that someone else recommended either, but the Faxon is cheaper), Aero upper, PSA/Toolcraft BCG, PSA/Aero lower, PSA LPK, 7075 receiver extension, and H2 buffer, and BCM KMR-A handguard. The stock and pistol grip really come down to personal preference, so either leave it up to them, or just spec basic M4 furniture from PSA. I'm not real picky on the gas block or gas tube either... just go with a steel one from a reputable mfg. that can be purchased from a vendor you're already using for other parts. A2 flash hider.

    For the DMR, the only thing I would change is to make it a LaRue Stealth barrel (16" would be my preference if you're going to recommend a length). Magpul MOE fixed rifle if you're going to spec a stock.

    For the pistol, the only things I would change (other than a pistol receiver extension obviously) is to make it a BCM 11.5" ELW barrel and 10" KMR-A handguard.

    If you're going to recommend sights, I'd say Magpul MBUS 2s, with an option for the Magpul MBUS Pro rear sight if a lower profile option is needed for scope clearance.

    Here are a couple of mine that are similar to the Lightweight/Home Defense setup and the Pistol setup I described:

    EAA77DA0-9FF2-482F-B6E8-B7E2FFBB4F03_zpsuvtrx6me.jpg
    340C67A0-75BC-4075-BB08-8E156A9B24F4_zpsvddllwaj.jpg
     
    Last edited: Jul 28, 2016
  10. dogmush

    dogmush Member

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    OK, That I can help with.

    SPR/GP rifle:
    20160730_145221_zpswq3acbmo.jpg
    James Madison Tactical 80% Lower
    Aero Upper
    AIM NP3 BCG
    Odinworks 15.5 Keymod rail
    Magpul ACS stock and MOE Grip
    Phantom flash hider
    Troy BUIS
    Primary Arms 1-6 ACSS in an ADM QD Mount

    #2:
    20160730_145108_zpsw0ylbok5.jpg
    Anvil Arms forged lower
    Generic keyhole upper
    Parallax Tactical 15" Rail (I'm not as huge a fan of this rail. Too heavy)
    Magpul CTR stock and Ergo Grip
    Primary Arms 1-6x ACSS in an ADM OD Mount
    Daniel Defense sling mount on the buffer tube
    Magpul B.A.D Lever
    Troy AMbi Mag release
    Ambi Safety
    Streamlight TLR-1

    Pistol/SBR setup (Stamp pending):

    5.56:
    4b28ebb0-c16e-4b20-be37-a9cd8db16709_zps7nfrbnmp.jpg

    Polymer 80 80% lower
    Model 1 Sales upper and 10.5" Barrel
    YHM handguard and gas block/folding front sight
    Ergo Grip
    Phase 5 pistol buffer tube and Sig Brace
    Magpul rear BUIS and hand stop
    TLR-1
    Primary arms Micro dot on a ADM QD Mount

    9mm:
    20160730_145505_zpsb6i3db1q.jpg
    Spikes Tactical lower
    Spikes Tactical Mag block
    Aero Slickside upper
    Samson Rail
    NP3 ramped 9mm bolt
    7.5" 9mm Barrel
    KAK Flash Can
    KAK Pistol buffer tube and Sig Brace
    Ergo grip
    Spikes Tactical Enhanced LPK (NP3 trigger/hammer and ambi safety)
    EOTech

    Varmint:
    20160730_150326_zpslbl9born.jpg
    Anvil Arms Forged Lower
    Generic (I don't recall) keyhole forged upper
    E.R. Shaw 1" stainless bull barrel w/ target crown
    Houge free float handguard
    PSG1 style grip and A2 stock
    Geissele SSA-E Trigger
    ATN Gen 1 4x night scope (Although I have a SWFA Super Sniper 16x around here somewhere for it, I've been using it for nocturnal pests lately)
    Versa-pod. (Just because my Harris is in use elsewhere)

    Just because you can setup:
    20160730_150426_zpsxtalljqz.jpg
    Anvil Arms forged lower
    A2 stock, filled with lead and epoxy
    Magpul MIAD grip
    Safety Harbor Heavy hammer and spring
    mil-spec LPK
    SWFA Super Sniper fixed 20x
    BOHICA .50 BMG Upper. (This upper is currently unavailable. I had to mod mine a little, but it works well now. If I were doing this build today, I'd use a Safety Harbor Upper)
     
  11. taliv

    taliv Moderator Staff Member

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    dog, thanks!!! that's exactly what i need! great looking builds too
     
  12. MistWolf

    MistWolf Member

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    When I said reactor rod, I meant reaction rod. The DPMS upper vise block I've got has a part that supports the upper part of the upper. Very little of the force will actually be transferred to the takedown pin holes.

    The reaction rod holds the upper by the barrel extension. When the barrel nut is tightened, the only thing keeping the aluminum upper from turning is the locator pin on the barrel. All the stress from tightening the barrel nut is concentrated there.

    I've used both tools to install barrels. The ONLY advantage to the reaction rod is that it's easier to remove the upper from the tool to either start a new upper, or to rotate the upper to get a better angle. I've used both fixtures for installing AR barrels. I've also used a barrel vise to install FAL barrels. As a professionally trained aviation technician with decades of experience performing mechanical tasks using tooling and fixtures, I know what I'm talking about
     
  13. Nature Boy
    • Contributing Member

    Nature Boy Contributing Member

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    What a cool idea Taliv.

    If I lived near you I'd be in on this. I have an m4 type AR but I can always make room for another.

    I want to build a rifle geared toward accuracy
     
  14. taliv

    taliv Moderator Staff Member

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    Nature boy start your own! Get some friends together. I'm not charging anything for this one. If you need some people with a lot of experience and tools I'll bet posting in rally point and maybe the arfcom hometown forum would get lots of responses
     
  15. dogmush

    dogmush Member

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    I have a standing offer to lend tools and experience to anyone in the Tampa Bay area that want's to assemble an AR.

    Doesn't need to be a "party". Let your friends know, there's always someone that wants a new rifle.
     
  16. Welding Rod

    Welding Rod Member

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    I proposed a "community interest" AR class to teach at a community college. I had enough students commit to fill the first class, and was confident I wouldn't have trouble filling one and possibly two classes per year. I said I would teach it for free, and that I would supply all of the training materials for free. I had an appropriate, isolated, and available part on the campus where it could be taught. I did a very nice job writing it up, along with citing my credentials, and submitted through the proper channels and processes. It got denied without cause.
     
    Last edited: Jul 31, 2016
  17. ColoradoShooter77

    ColoradoShooter77 Member

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    Over is past Memorial Day, I built a nice, no frills, solid 16" carbine from PSA, for $508 total cost. It shoots great and has been 100% reliable.

    PSA Blem Classic Lower = $139 shipped + transfer = $165
    PSA Freedom Melonite 1/7 upper = $189 shipped
    PSA Freedom M16 BCG with charging handle = $104 shipped
    Magpul rear sight = $50

    I'm glad I did it, when I did. The upper and lower that I bought have been pretty much out of stock since Memorial Day.

    It took all of 30 seconds to assemble it, once I had the upper, lower and BCG. Its childs play.
     

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  18. taliv

    taliv Moderator Staff Member

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    first meeting went well. we had more show up than I think we invited :) i'd say roughly half already own an AR though
    and I think enough other people have expressed interest that we may start a second party. i was a little surprised.

    now everybody's ordering parts.
     
  19. Nature Boy
    • Contributing Member

    Nature Boy Contributing Member

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    So did everyone come with a bag of parts and leave with a complete rifle?
     
  20. taliv

    taliv Moderator Staff Member

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    no, first meeting was educational. safety, components, show n' tell, so they can decide what they want to build
    second meeting will be bag of parts --> complete rifle
    third will be on the range, zero and basic marksmanship
     
  21. Nature Boy
    • Contributing Member

    Nature Boy Contributing Member

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    Awesome idea!
     
  22. bullseye308

    bullseye308 Member

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    Where bout in tn is this going on?
     
  23. taliv

    taliv Moderator Staff Member

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    cookeville
     
  24. Arizona_Mike

    Arizona_Mike Member

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    Since the lower swap is pre-planned and not spontaneous, how are these not straw transfers?

    Mike
     
  25. Dr.Rob

    Dr.Rob Moderator Staff Member

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    For a hunter or competition rifle a 16 inch 'varmint' upper free floated from Model One Sales.They come assembled but they are really good ER Shaw 1:9 barrels. (They also sell the barrels bare.)

    Legal shorty XM-177 pinned and welded 11.5/5.5 barrel : Tony's Customs

    A1 uppers: DPMS & Novak/Spud

    I had good luck with Anderson and "chainsaw' lowers by Noveske.
     
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