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ATI Polymer Lower

Discussion in 'Black Rifle Forum' started by USMCsilver, Nov 22, 2012.


  1. larson1122

    larson1122

    1,801
    0
    Jan 30, 2012
    Minnesota
  2. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    PASS.

    Sent from my DROID BIONIC using Tapatalk 2
     
  3. Cole125

    Cole125 Silver Member

    7,584
    2
    Apr 5, 2008
    Far West, USA
    Maybe for a dedicated .22 lr build, for 5.56 PASS.
     
  4. 03Cobra

    03Cobra

    169
    0
    Mar 21, 2010
    with lowers available at $69 from PSA I would pass - but at $35 it may be worth testing out as long as you have a backup in the PSA
     
  5. MrMurphy

    MrMurphy ********* Moderator Moderator Millennium Member Lifetime Member

    12,972
    2
    Jan 16, 2001
    Buried in the X-files
    Run away from it like a $3 hooker with gonoherposyphilitis B.
     
  6. yellowhand

    yellowhand

    244
    4
    Feb 1, 2012
    Arizona
    I built one last year.
    Had the parts sitting around.
    Placed a 20 inch pencil barrel upper(5.56) onto it and took it to the range.
    Fired 300 rounds and not one problem.
    Service grade for accuracy.
    All of my mags fit, used four types/brands, steel, alum, plastic.
    All feed and dropped free.
    Have since built three more for other people.
    Two 5,56 and a dedicated 22lr.
    No one has reported any problems.
    My wife shoots ours :upeyes: once a month and still no issues.
    She likes the lite weight.
    Hope this helps...
    My SHTF weapon of choice is still one of the FALs:wavey:
     
  7. Roger1079

    Roger1079

    3,052
    268
    Mar 22, 2008
    South FL
    I agree with the above poster that mentioned caliber. For a .22LR, polymer fits the bill. For .223 polymer would be my last choice especially with other options like PSA being as inexpensive as they are.
     
  8. amd65

    amd65

    798
    20
    Nov 13, 2004
    North Coast of Ohio
    I put together a New Frontier poly lower AR last year. I had a spare upper and BCG.
    The complete lower with internals and stock was $79.
    It has worked perfectly through 500rds so far...I like it.
     
  9. mac66

    mac66 Huge Member Millennium Member

    6,075
    352
    Oct 28, 1999
    Blue Planet
    For $35 I would buy several of them to play with. Polymer lowers are the wave of the AR future IMO just like the Glock was the wave of the future of pistols.

    BTW, I have a couple Cav Arms lowers which work well.
     
    Last edited: Nov 23, 2012
  10. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    Glocks were designed for polymer from the beginning. So was the SCAR.

    The AR platform was not. Look at all the attempts to make a polymer-framed 1911. They pretty much all suck.

    $35 for a polymer lower, $50-70 for an aluminum one made to spec(even if it has a cosmetic blemish). Not a hard ****ing decision.
     
  11. mixflip

    mixflip

    6,825
    3
    Mar 4, 2009
    After seeing pictures of that polymer AR lower with broken receiver pin holes...I really lost all confidence in any and all polymer AR lowers. I have never seen an aluminum lower break.
     
  12. onebigelf

    onebigelf

    348
    0
    Aug 28, 2004
    Florida
    I have two. One is a dedicated .22LR and is great fun. The other is an ultra lightweight built for my 5'1" Irish Redhead (87lbs). Both have run flawlessly, several thousand rounds in the .22 and about 800 on the 5.56. I have a spare complete lower on a Spikes Tactical receiver just in case.

    John
     
  13. For $35, curiosity would get the better of me. Why not? You have other rifles if you ever find yourself in N. Dallas needing a Noveske and a Glock with a 30 round mag in a drop leg holster.
     
  14. mac66

    mac66 Huge Member Millennium Member

    6,075
    352
    Oct 28, 1999
    Blue Planet
    If a viable plastic had been around at the time the AR probably would have been designed for it. It is really immaterial what it was designed for.
     
  15. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    How do you figure? The dimensions of the receivers were designed with aluminum in mind. Trying to replicate it in polymer is going to sacrifice size or strength. You can only sacrifice so much in size before you're unable to use standard parts.

    Sent from my DROID BIONIC using Tapatalk 2
     
  16. Foxtrotx1

    Foxtrotx1

    4,036
    0
    Jan 29, 2010
    Scottsdale AZ
    I'm so glad a mechanical engineer such as your self has chimed in.
     
  17. mac66

    mac66 Huge Member Millennium Member

    6,075
    352
    Oct 28, 1999
    Blue Planet
    I shouldn't have to remind you that many things previous made and designed of one thing, i.e., wood, stone, bronze, copper, brass, iron, steel, aluminum are now made of something else.
     
    Last edited: Nov 25, 2012