Anderson’s 5.56 AOR Complete Upper

4.38 out of 5 based on 8 customer ratings
(8 customer reviews)


Anderson’s AOR Complete upper:


UPC: N/A 820103629317 784672106726 646437869607 SKU: N/A Category:


Anderson’s AOR Complete upper:

Additional information

Weight 4 lbs
Dimensions 26 x 3 x 3 in

Non-RF85, RF85 Treated


BCG Included, NO BCG

8 reviews for Anderson’s 5.56 AOR Complete Upper

  1. 1 out of 5

    Will this include a RF85 BCG if RF85 treatment is requested on the upper

    • yes the BCG, charging handle, upper receiver and barrel will be treated.

  2. 4 out of 5

    Is this .556 ? What length is it? midlength, rifle length?

    • Chambered in 5.56
      this is a carbine length gas system

  3. 5 out of 5

    Ive put together many pistols and rifles, all with Anderson parts, including lowers, rifle kits, from 7″ barrels to 24″. For the fair price, Anderson is by far the best quality, and their customer support is outstanding.

  4. 5 out of 5


  5. 5 out of 5

    Great upper at a great price!!! Bought mine thru a local gun dealer, of course they have to make some money. My next build I will buy direct from Anderson. I matched it with a stripped lower and the fit and finish is as good as anything I’ve seen to this point. Would recommend it to anyone l9oking to build an AR, don’t let the price scare you away, these are quality receivers machined from Cerro forging, same as the big name brands, why pay more?? Mil-spec is Mil-spec, high quality without the high price!! Can’t go wrong.

  6. 5 out of 5

    What does AOR stand for?

    I have an all Anderson AR-15 and love it. Quality is there and their customer service is top notch. Highly recommended

    • Anderson Optic Ready

  7. 5 out of 5

    Will this work on a Anderson AM-10 308 Lower , thus making it able to fire 5.56, then swich over or back to the 308 upper ??? with no modification , or is this even a possiable idea I have . ps; please respone Thank you I Love my AM-10 Hunter .

    • No this will not work.

  8. 5 out of 5

    Shoots really smooth and made a really nice upgrade from the factory upper on my Ruger ar556 model.

    But can anyone tell me the barrel outer diameter or what size gas block I need so I can order a low profile?

    • .750 is the gas block diameter

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