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Thread: Billet lowers...Spikes or Mega

  1. #21
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    Nov 2007
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    I have the Mega GTR-3S and I'm extremely happy with it. I also have the 2 of the Mega Gator lowers and they are very nice as well.

    The Mega GTR-3S

    Features:

    ■7075 Billet Aluminum
    ■Flared Magwell
    ■Integrated Trigger Guard
    ■Tensioning Screw for proper Upper/Lower Fit
    ■3S Model - Better Match with Standard Uppers
    Tzoid

    Texan raised in " The Peoples Republic of Maryland"

    "RRA- if they came with a blow job I wouldn't take one." - Pat Rogers

  2. #22
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    MEGA, no question.

  3. #23
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    Nov 2010
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    I have two of the Mega GTR-3S lowers, one assembled with a Spike's LPK and the other waiting to be assembled.

    The quality of the Mega lowers is flawless, and the finish is especially nice. The finish is more matte, more black and more scratch resistant than other lowers I've used.

    Everything posted about forgings is correct, so yes, a $70 Aero Precision forged lower is likely at least as strong, possibly stronger, than the Mega (or other billet). But lowers aren't stressed much so it doesn't really matter a lot. Your best value is an inexpensive quality forged lower like Aero Precision makes. The Mega billet just looks really cool, and is perfectly machined and finished. If you want something intermediate, a Mega forged lower gets you the strength and standardization of a forged lower, along with (presumably since I don't own one) their quality of finish.

    Oh, by the way, Aero Precision makes a terrific lower too, with what also seems to be flawless machining. Finish on the AP is nice, a uniform deep black, but seems relatively delicate (vs. four other brands I own/have owned) while the Mega seems especially tough.

  4. #24
    Join Date
    Feb 2010
    Location
    Salem OR.
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    Billet vs. forged aside.....
    get a Mega, they make some of the best fitting stuff in the AR world. Plus, there CS is amazing.

    I e-mailed Mega about rail fir on there billet uppers, and the CALLED me in less then 20min.

    I would not touch a Spikes with a ten foot pole. I sent them 4 emails over a 1 month time frame, a couple years ago. Never heard a word back.
    100% Commie-Proof

  5. #25
    Join Date
    Apr 2009
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    I like billet lowers. Presently I have Seekins, C3 Defense, Sun Devil, TKS and some other one whose name I can't think of right now. I think Seekins makes the billet lower for Spikes but I could be wrong about that. Anyway, my opinion is to just get the lower that you like the looks of. The additional strength of forged versus billet does not matter on a low stress part such as the lower. If you want to save money, the 69 dollar lowers will work. If you want to spend a bit extra to get a certain look, that's fine too.
    Last edited by 500grains; 01-13-11 at 19:02.

  6. #26
    Join Date
    Nov 2008
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    Thumbs up

    Quote Originally Posted by 120mm View Post
    Since the lower is prolly the least critical part of the assembly...
    This.


    Tightness of upper to lower fit is irrelevant.
    This.

    For $100 you can get a lot of forged lower.
    And this.

  7. #27
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    Jul 2010
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    I have a Mega forged upper/lower on a Grendel. Based upon comments by others and my own observation, the Mega parts are very well made and finished; Mega is the manufacturer of forged and billet and their stuff is pretty cool looking, and for many, cool looking is part of the AR addiction. Due to low stress on a lower, whether it's billet or forged is not decisive, it's looks, fit, and what you want to pay. Mega is quite a bit less expensive than some "name brand" receivers, so I'd order one from Ranier and see for yourself. Often, this is the best way to determine your tastes, as well as scouting out pix posted on forums.

  8. #28
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    Not to say billet is a bad choice but keep in mind that the receiver extension mount of a lower is stressed due to the leverage exerted by the receiver extension and butt. I don't recall where, but I have seen one picture of a lower that broke at this point. I do not know under what circumstances it broke.

    The focus of this thread has become about lower receivers. When I posted about forgings & billets, I was also keeping uppers in mind

  9. #29
    Join Date
    Dec 2008
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    here is my bio-hazard .22lr, that being said i would have never thought about using it for a heavy duty or real use gun. i may consider building a 5.45 upper for it but thats about it.

  10. #30
    Join Date
    Mar 2010
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    KalifoЯnia
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    I love my Sun Devil! Superb fit and finish and the best customer service hands down.

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