Quantcast
  1. Sign up now and join over 35,000 northwest gun owners. It's quick, easy, and 100% free!

AR Buttstocks: mil-spc or commercial?

Discussion in 'Rifle Discussion' started by Ampster, Jun 30, 2011.

  1. Ampster

    Ampster Looking across to Whidbey Member

    Messages:
    33
    Likes Received:
    5
    When I built my 1st AR, I built it from complete kits. I'm planning out my next build and looking at part by part configurations, I now find the Buttstocks being specified either as "mil-spec or commercial diameter."

    Can anyone be so kind as to tell me the difference, please?
     
  2. Mr. Ben

    Mr. Ben Snohomish Co. Active Member

    Messages:
    245
    Likes Received:
    69
    magpulbuffertube.jpg
     
  3. Untamo

    Untamo Tigard (SW Portland) Member

    Messages:
    114
    Likes Received:
    6
    While some like mil-spec vs commercial just match you stock to your tube type or vice versa. You can get 6 positions in either type. Just decide the quality of aluminum you want for the tube and go.
     
  4. Ampster

    Ampster Looking across to Whidbey Member

    Messages:
    33
    Likes Received:
    5
    Thank you, gentlemen! That explains a lot. So, since the diameters are different, this assumes that the lowers are either mil-spec or commercial too, right?
     
  5. Dell_dude

    Dell_dude Vancouver, WA Member

    Messages:
    317
    Likes Received:
    20
    No. Not for this discussion anyway.

    The buffer tube and stock are the two bits to be concerned about here. The diameter and thickness of the buffer tubes are slightly different.

    If you pick a commercial buffer tube, pick a commercial stock.

    Personally, I'd say pick the stock you want, then decide whether to get it in mil-spec or commercial. The stock you choose may not have an option, and you may have to get the buffer tube based on the stock choice.
     
  6. Ampster

    Ampster Looking across to Whidbey Member

    Messages:
    33
    Likes Received:
    5
    AHA! Thank you Dell_dude. That is very enlightening. I'll do that.
     
  7. madcratebuilder

    madcratebuilder Ardenwald, OR Well-Known Member

    Messages:
    1,278
    Likes Received:
    175
    There's more to it than just the tube diameter. A true mil-spec RE well be a forged 7075 aluminum part. Many so called mil-spec after market RE's can be 6065 aluminum and extruded, not forged. For 99% of users it well not make any difference, but the forged RE's are stronger and well take a substantial amount more abuse.
     
  8. nubus

    nubus Guest

    Not to take this too far down this road, but...
    Madcratebuilder is correct, however almost all of the mil-spec tubes on the market today are not forged.
    I like Dell_dude's advice, pick your stock, both tubes are readily available.
    BTW this pertains only to carbine length tubes, rifle tubes are all the same.
     
  9. Ampster

    Ampster Looking across to Whidbey Member

    Messages:
    33
    Likes Received:
    5
    Good to know, as this (prospective) build will be a "High stress unit" so very good info.

    *In hind sight, the 1st build I ever did (10 years ago) was strictly a "Tacticool plinking tool." I wish I had known about this forum and the cool people in it. Thanks again.
     
  10. madcratebuilder

    madcratebuilder Ardenwald, OR Well-Known Member

    Messages:
    1,278
    Likes Received:
    175
    For a "High stress unit" build I would recommend the LMT SOPMOD stock. You well not find anything with as tight of fit on the sliding portion of the butt. There is absolutely no movement at all, zero. This does come with a price, about $250 for the complete setup. It's not out of line with other high end butts........and way cheaper than some butts I've dated.;)
     
  11. Dell_dude

    Dell_dude Vancouver, WA Member

    Messages:
    317
    Likes Received:
    20
    That's the one I have, and I definitely second the recommendation.

    It's also very comfortable, gives a great cheek weld, and also has storage for batteries for your light or optics.

    Quality piece of gear.
     
  12. Ampster

    Ampster Looking across to Whidbey Member

    Messages:
    33
    Likes Received:
    5
    So... what are you guys trying to say? Please give me a hint... :dinner: :laugh:

    Wait... I think I got it! :thumbup::bananadance: SOPMOD!


    LMTSOP.gif
     
  13. NoAim

    NoAim Hillsboro, OR Active Member

    Messages:
    674
    Likes Received:
    25
    I prefer the Magpul ACS over the SOPMOD.
     
  14. Dell_dude

    Dell_dude Vancouver, WA Member

    Messages:
    317
    Likes Received:
    20
    I've thought about getting that one for an SPR build I'm going to do. It's just been on the back burner since I've been more focused on packing away ammo and whatnot.
     
  15. madcratebuilder

    madcratebuilder Ardenwald, OR Well-Known Member

    Messages:
    1,278
    Likes Received:
    175
    The Magpul ACS is a nice butt, they do have a problem with removing facial hair:( that I find annoying. My ACS is tighter than the run of the mill M4 butt yet it still has some movement that you wont have with the sopmod.
     
  16. scrappydoo

    scrappydoo Federal Way Active Member

    Messages:
    144
    Likes Received:
    22
    Thanks for the info. My MOE pulls out my facial hair and it drives me nuts. I was thinking of upgrading to the ACS in hopes it would solve this problem. Do you know of any other stocks besides the sopmod that don't have any play?