Bad Attitude Department AR15 Lower Receiver - Schrodinger's Lower

SKU:
101-0505-003-A2
$69.95
(16 reviews)
Current Stock:
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Schrodinger's Lower.  What's In The Box???

We are far from perfect.  Sometimes we make duplicates of the same order.  Sometimes we screw up the NFA markings in the magwell and have to "X" them out.  Sometimes we try a design and just don't like it.  Here is your chance to get a great deal on a mystery lower.  Nothing wrong with it, we just made it on accident, or don't like it, or don't need it.   We do not consider them to be blems.  The worst you might get is a series of "X"s on the inside of the magazine well feed lip.  All are dimensionally perfect.

  • CNC Machined from a 7075-T6 forging
  • Media blasted for a smooth matte finish
  • Hard coat anodized to the government print - color is random and not selectable
  • M4 style fire control group pocket
  • We hold our lug diameters very tight at the low end of the spec to ensure a solid upper receiver fit. 
  • Model:  Unknown
  • Manufacturer:  Bad Attitude Dept
  • Caliber: not marked, or maybe is, depends on what you get

This is considered by the ATF to be a firearm and must be shipped to an FFL for transfer to you. These cannot ship directly to your residence. Please be aware that because these are not long guns, you must be 21 to take possession of them at your dealer. Returns due to failed transfers will be accepted with a 15% fee and return shipping covered by the customer. Customized lowers cannot be returned for any reason other than manufacturing defect. Any transfer fees charged by the transferring dealer are the responsibility of the purchaser.

We must have a copy of your dealer's FFL prior to shipment. You will be able to select your dealer at checkout.  We'll handle the rest.

 

 

Reviews

  • 5
    Schrödinger’s lower.

    Posted by Gary S on 16th Aug 2026

    Love this! I got a cool one. As soon as they line more up for stock I’m gonna order another. I like the whole “grab bag” aspect of it

  • 5
    Schrodinger lower

    Posted by Blaze on 8th Aug 2026

    The lower i received was in perfect condition no mistakes or blemishes. All the engravings are great

  • 4
    Schrodinger's Lower

    Posted by Louis on 7th Aug 2026

    Nice blem lower. Got a Colt clone with X'ed out safe/fire markings. The mag release was slightly out of spec and sticking but BAD sent me a mag release button that works great on it.

  • 5
    Schrodingers box

    Posted by Kris Huerkamp on 4th Aug 2026

    Love the idea of a mystery box. Was not disappointed in my lower receiver at all!

  • 5
    Smoking good deal for a great lower

    Posted by John on 3rd Aug 2026

    Great quality, absolute perfection. It puts the lotion on its skin

  • 5
    Schrodinger goes hard!

    Posted by Jake B on 2nd Aug 2026

    Picked up a couple of these lowers during their 4th of July sales. They are kind of a grab bag style not knowing what you are going to get but is worth it for the savings. Bad Attitude never disappoints. Was happy with what I recieved and they ended up completing my builds perfectly! As far as the lowers quality goes they are top notch installed Giessele ultimate lowers parts kits in both and everything was speced and solid fitting. If you are looking for a mil-spec lower look no further.

  • 5
    Blind Boxes for Adults

    Posted by Tim on 2nd Aug 2026

    I've gotten a couple Schrodinger's lowers now and they're a lot of fun. It's like a blind box for adults. You don't know what you're getting but it's going to be something cool. I got a bronze finished Korean lower the first time and a bronze SMG lower the second time. I'll definitely add another on next time I order too.

  • 5
    Spoiler: There IS a lower in the box

    Posted by Johnny on 16th Jun 2026

    Made a late-night gamble on this and got a beautiful Metal Gear Solid themed lower. Flawless anodizing and the engraving is really nice, plus, had a hidden cat on it.

  • 5
    Great Product

    Posted by Brayden Newberry on 28th Apr 2026

    I ended up with an M16A4 clone lower and I couldn't be happier. I'll definitely be picking up another one as they come in! Much appreciated!