16” Complete Upper With Front Sight Base

Rated 4.39 out of 5 based on 28 customer ratings
(28 customer reviews)



16” M4 1-8 twist  barrel

Front Sight Base

Carbine Gas Tube

7075 T6 Forged Upper Receiver

A2 Hand Guard

A2 Flash Hider

Standard Charging Handle

M16 BCG.


Chambered in 5.56

In stock

UPC: 640901512549 SKU: B2-K612-AF02 Category:



16 ” M4 Contour Barrel with 1:8 Twist,Chambered in 5.56/.223, Phos Finish, Carbine Gas System

Front Sight Base, Carbine Gas Tube, A2 Flash Hider, Plastic Forearm, M16 BCG Group.

Additional information

Weight 3.75 lbs
Dimensions 32 × 3 × 3 in

28 reviews for 16” Complete Upper With Front Sight Base

  1. Rated 5 out of 5

    Luis Salinas

    An excellent choice for a starter like me. Easy to sight in, very good weapon to have for hunting hogs. Thanks for assisting me in making this choice. Please contact me when you have additional in stock.

  2. Rated 5 out of 5


    Does this upper offer chrome plated chamber and bore?

    • Tom Steffner

      No Sir

  3. Rated 5 out of 5

    Curtis Jackson

    What kind of accuracy can be expected with this upper?

    • Tom Steffner

      1 MIN MOA or Better

  4. Rated 5 out of 5

    Aaron Lacson

    What flip up rear sights would work best with this front sight base? Thank you?

    • Michael Johnson

      We offer the Magpul flip up sights

  5. Rated 2 out of 5

    David viveiros

    So this does or doesn’t have a chromed lined barrel

    • Michael Johnson

      this upper does not have a chrome lined barrel

  6. Rated 3 out of 5


    Why are the specs so vague and are these mil spec? Also, why is your contact page down? Kind of discerning if you ask me.

    • Michael Johnson

      16 ” M4 Contour Barrel with 1:8 Twist,Chambered in 5.56/.223, Phos Finish, Carbine Gas System

      Front Sight Base, Carbine Gas Tube, A2 Flash Hider, Plastic Forearm, M16 BCG Group

      What would like to know and we can help?

  7. Rated 3 out of 5


    When will this item be back in stock

    • Michael Johnson

      These should be in stock next week

  8. Rated 5 out of 5

    Robert Lind

    Bought this upper without hesitation from another dealer that had them. Upper will be used on wife’s rifle. If you are looking for a quality company that stands behind their product, you’ve found them. Anderson is #1!!!

  9. Rated 4 out of 5

    Dan Roth

    I have essentially the same upper except I bought it without the BCG and charging handle. I coupled it with a forged Anderson lower and Anderson parts kit. They should offer different BCG’s as optional add-ons as well as charging handles such as BCM’s, etc. I bought mine with no front sight and no BCG or charging handle for $225. Adding $100 for a phosphate BCG and a mil-spec charging handle is about right. Excellent gun for sure. Highly recommend this upper and the Anderson lower is an excellent buy.

  10. Rated 5 out of 5


    Do not hesitate to buy anything from this company. I have bought about 7 of these and they are excellent! I have been very pleased with every purchase I have made from Anderson.

  11. Rated 5 out of 5


    Can I attach a forgrip to this handguard?

    • Tom Steffner

      Yes Sir

  12. Rated 5 out of 5


    When will this be in stock? I really want to purchase one of these to go with my Anderson lower. 5 stars for the lower!

  13. Rated 5 out of 5


    Is this Anderson doesn’t say.

    • Tom Steffner

      Yes it’s an Anderson

  14. Rated 3 out of 5

    Clay S

    What are the material specs on this particular barrel? And is the BCG milspec?

    • Tom Steffner

      The BCG is a M16 Full auto, the barrel is 4150 Chrome moly

  15. Rated 5 out of 5

    Todd Oleson

    Any concerns with headspace on your complete uppers

    • Tom Steffner

      No Sir, all uppers are test fired and inspected before shipping

  16. Rated 3 out of 5

    Steven Shaffer

    bought this upper and after 1200 rounds threw it it lost its 1moa went to about a 4-5 moa grouping at a 100 yards emailed Anderson today haven’t got a message back from them yet and was using 55 grain bullets from American eagle shot about 18 64 grain hog loads threw it and after 1200 rounds the gun will not throw down a decent pattern on paper and the gas block/front a-2 post has a huge gas leak which is surprising sense im now over gassed and the rifle when I 1st bought it and broke it in and shot it put the shells on the ground about 4-5 oclock now the shells are ejecting about 2 oclock im not saying its not a bad upper I just saying I am just now having issue at 1200 rounds and waiting on a response from Anderson on what the issue with the rifle is

    • Michael Johnson

      we will email you and get this all taken care of

  17. Rated 3 out of 5


    I’m having jamming issues not sure why . Couldn’t even go through three rounds before jam after attempting four clips 10 rounds each not able to get through one without jamming at least three times I’m worried.

  18. Rated 5 out of 5

    Barrett davis

    Are these uppers lube free

    • Michael Johnson

      this is not an RF85 treated upper

  19. Rated 5 out of 5

    Michael Taback

    Are these treated with RF85?

  20. Rated 3 out of 5


    Bought this complete upper and had nothing but jamming/short cycling issues. Tried multiple troubleshooting, finally came down to removing the A2 front sight/gas block and having to drill 1/64 out of the barrel gas port. Reinstalled everything and now runs great. No jamming/short cycling and locks back every time. Removing the front sight was NOT easy.

    • Michael Johnson

      do you have an order number we can look up?
      We have not heard of issues with this.

  21. Rated 5 out of 5


    Is this upper California legal?

    • Michael Johnson

      This upper has a flash hider on it.
      You would need to order a Muzzle break and install on it

  22. Rated 5 out of 5


    Okay, so legally I could still order this upper and have it sent to California I just need to change out the flash hider for a muzzle break correct?

  23. Rated 4 out of 5

    Paul Piccolo

    What’s required to mount a bipod to this? An adapter?

    • Michael Johnson

      Yes you will need a plastic forearm adaptor to mount a the bi pod.

  24. Rated 5 out of 5


    Does the upper have feed ramps like an M4 upper?

    • Tom Steffner

      Yes it does

  25. Rated 5 out of 5

    Billy taitt

    When will they be back in stock so i can order 1

    • Michael Johnson

      These should be a few weeks
      trying to get caught up on orders

  26. Rated 5 out of 5

    David Benedict

    Just received my upper! Very fast shipping as usual!!! The finish and fit are great! Have not had a chance to take to range yet but will give feedback as soon as I do.

  27. Rated 5 out of 5

    Tim Garrison

    Love the gun but haven’t gone to the range yet. I bought the cheaper optics ready version. The gun handles and feels good but I was wondering if I can add front and rear sights and would like the front sight with the swivel on the bottom. If not let me know what I can do. I don’t know much about these guns but will soon. great looking gun.

  28. Rated 5 out of 5


    Can this be ordered in 300 blackout and what threading is on the front of the barrel? Can the flash hider be easily removed and replaced with a supressor?

    • Thomas Steffner

      Sorry It can not.

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