POF or RRA

Discussion in 'AR-15 Discussion' started by JonM, Apr 8, 2011.

  1. JonM

    JonM Moderator

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    ok im looking at getting/making a machine gun grade upper (shtf) and im thinking about the POF uppers. reason being is purely for the quality of the barrel. im not a huge fan of the piston systems nor the short sight radius of the POF stuff. is there another barrel maker out there that offers a similar quality barrel in a rifle length. my other option is a heavy barrel chrome lined rifle length from RRA.

    and it is going to be used on a select fire M16. this plan involves using it as a LMG in shtf type thing so weight isnt as much of an issue as it will be filling the role similar to a M249SAW. im not getting a belt fed atm due solely to the versatility of the M16 in use of multiple uppers which can be swapped out same as a MG barrel for cooling.

    so im thinking i can just buy 3-4 DI chrome lined barrels and uppers with BCG for the price of ONE POF. but all i really need is one extra upper as im upgrading all of my other uppers to FA bolt carriers. so the question im undecided on is just one REALLLLLLY good upper missing the extra sight radius or a cheaper DI with a proper rifle sight radius.

    or is there another brand im missing to look at??
     
  2. Quentin

    Quentin New Member

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    Jon, I would think any perceived advantages of a piston upper would be lost on a 20" barrel so wouldn't get the POF. (At least it sounds like you're wanting 20"...)

    The normal reply would be get a BCM but it doesn't sound like you want the standard govt. profile (due to the thin section before the gas block?). And they seem to be out of stock now anyway. Daniel Defense and Centurion Arms don't make barrels longer than 16" (I think) so nothing special comes to mind right now. Don't know much about RRA barrels, do they have 1:7 with good steel for select fire?

    Anyway, good luck and I hope someone else comes up with some good leads - and this sure sounds like FUN! :D
     

  3. WoodysKJ

    WoodysKJ New Member

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    John,

    Have you investigated these: Krieger Barrels

    They make some of the FINEST barrels on the planet, or at least used to.
     
  4. mjkeat

    mjkeat New Member

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    Noveske. Their barrels are made to M249 specs.
     
  5. JonM

    JonM Moderator

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    rra does have chrome lined barrels but im not sure if its just the chamber or the whole barrel lining. their line runs 1:7 1:8 1:9 im looking for a slow twist to reduce wear. so im shooting for 1:9. and yeah i want the longer 20" or even a 16" IF it had the same sight radius as the 20".

    im not a fan of piston in the m16/ar15 platform at all. i prefer to avoid it in a serious gun if i can.

    yes i have but they arent good for select fire use. they focus more on accuracy and are indeed superb barrels for target shooting

    thanks didnt know about that company it hasnt come up in my searches ill check em out. m249 spec is exactly what im looking for.

    EDIT:

    just looked em up their longest chrome lined M249 is a M4 carbine spec 16" :/
     
    Last edited: Apr 8, 2011
  6. mjkeat

    mjkeat New Member

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    Last edited: Apr 8, 2011
  7. JonM

    JonM Moderator

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    interesting. i need to look at the 18 and 16's a bit harder then.

    im a bit old school i like the rifle length tubes and the longer sight radius. i dont really want to deal with the issues ive read about carbines having on full auto from the shorter tubes.

    thats a bad *** sight. i like the MG reticle. wish i had a similar one on my issue m60
     
    Last edited: Apr 8, 2011
  8. mjkeat

    mjkeat New Member

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    The bulley drop reticle was nice. We used them on our 240s as well.

    Do they still use the 60?
     
  9. JonM

    JonM Moderator

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    Yes I think the current one is the mod e3 its about the weight of a saw. I've always liked the heavier original vietnam vintage. Easier to control far more accuratethan the lighter mods. Not all units have em anymore mainly mounted troops I think
     
  10. mjkeat

    mjkeat New Member

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    Thats cool.
     
  11. fsted2a

    fsted2a Active Member

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    I am kind of late to this thread, but you might try and find an LSW upper if you are primarily looking to fire auto all the time. The LSW was designed from day 1 to fire open bolt full auto only, and it has a heavy barrell. Has an oversize gas tube to accomodate heavy useage. Just be sure to get a hydraulic buffer when you do. I usually see one on gunbroker.
     
  12. JonM

    JonM Moderator

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    thanks ill put em on the list. but im not a fan of open bolt on a m16
     
  13. fsted2a

    fsted2a Active Member

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    The M16 assault rifle wasn't designed to be a designated machine gun, just an assault weapon with occasional full auto fire. The M16A2 LSW was intended to be a machine gun from the start-no select fire option. The open bolt firing was to avoid a runaway gun due to cookoffs. It all depends on what you want to use the weapon for. The reason I suggested the LSW upper is from reading the rest of the thread, you might be considering firing a significant percentage of your rounds on auto, and the LSW has a heavier barrel and a bigger gas tube designed specifically for that purpose, as well as a heavier bolt carrier. It depends on what your useage is as to whether or not you want to consider an LSW upper. If you don't get the LSW fire control parts, you will still be firing close bolt.
    Also, LWRC has a select fire control that switches from closed bolt for semi to open bolt for auto. If you are firing a lot of rounds on auto, that makes sense to avoid cookoff firing.
     
    Last edited: Aug 26, 2011
  14. JonM

    JonM Moderator

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    The m16 im in the proccess of getting is the forerunner of the m249 saw. Its the original colt hbar designed to be a squad weapon. Its got the m60 bipod full heavy barrel and strengthened gas tube.

    My purpose is a light pkm style using beta mags instead of belts.

    In shtf my wife will be running the m16 ill be using one of my precision rifles. For her she is well versed in the regular ar15 im just adding an extra feature while keeping the manual of arms the same.

    I have been training her as my spotter and she is getting decent at distance estimation.

    If shtf parts for a open bolt or belt fed upper wont be easy to get while parts for a standard ar upper will.
     
  15. fsted2a

    fsted2a Active Member

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    Then we have been on the same page and didn't realize it. Same weapon I was talking about. Fire control parts are interchangeable. My only concern is the gas system. If one of the parts goes out, you may be faced with having to convert to the standardized parts, unless you get on the batphone to Red Jacket. Some LSW parts are hard to come by. I saw a set of fire control parts on gunbroker go for about 350 smackers. Ouch. I don't know if the gas tube or gas key will interchange with current milspec M16/AR15 parts. Good luck with all of it.