BA Swag

AR-15 Upper Receiver

SKU: BAPA100045

Availability: In stock




AR15 Assembled Upper Receiver. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps.

  • M4 Feedramps
  • .250 takedown pin holes
  • Lazer engraved T-marks
  • AR15 Assembled Upper Receiver in Anodized Black

Additional Info

Controlled Item No


Typical Outstanding BA QualityReview by keith
As of now, all my weapons wear BA barrels. There's no break in they fire amazingly right out of the box. It was no coincidence that I got myself the upper. Guys and gals if you are going to build an AR do it with BA parts. I will be building a total BA SPR this spring. As of six months ago, I will never buy an AR off the rack. Daniel Defense who? LWRC who? After nearly 40 years of gun buying, trading, and even military use, Ballistic Advantage is duly named. Standing ovation Mr. Hanson and crew! If you click off this page without buying a BA Barrel or receiver you need an appointment with your shrink. These people manufacture using ballistic pixie dust. (Posted on 12/9/2017)
High qualityReview by Scott
I just had installed my BA Hanson 17.7" 3 Gun barrel on my BA upper. Barrel was a very snug fit. Perfect! I will buy more uppers from BA. Also, my barreled upper is on top of a DSA lower. There is no movement at all between the upper and lower, yet the rear takedown pin pushes right out with finger and fingernail. (Posted on 10/27/2017)
FANTASTIC!Review by Eiler
This upper receiver arrived superbly well-packed and separated from the other components I ordered. The assembly, fit, and finish were flawless, and I had zero issues installing the BA barrel assembly and non-BA charging handle and BCG. There were no issues between three shooters during break-in, and I see no reason to buy any other upper receiver from here on out. (Posted on 9/30/2017)
ExcellentReview by Jack
I received this upper yesterday it was packed extremely nicely and Ballistic made sure it wasn't going to get damaged during shipping. The fit and finish is amazing i tried this upper on 3 different lowers 2 spikes and an Anderson. Very nice tight fit on all 3 matches the finish on my spikes perfectly there was very little to zero movement while on the lowers. I am extremely happy with this purchase. I will definitely be buying more for other builds I will be doing and will also definitely be getting some of their barrels to try out (Posted on 9/17/2017)
So nice.Review by James
I received this upper receiver free with the purchase of my BA Hanson barrel when they did the special sale in July.

When I looked at it I was blown away by the finish.
The fit to my lower was excellent, if that lower wasn't part of a matched set I would have used the BA upper. Instead I will be buying a BA Lower and building a 6.5 Grendel. What can I say, they twisted my arm.
(Posted on 8/11/2017)

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Shipping and Returns

Free Shipping

⇨ More info on Free Shipping.


It is our goal to ship all orders within 3-5 business days after the order is placed. However, due to seasonal demand and/or market fluctuation, shipping times may vary. Items will be delivered via the delivery method chosen at the time of purchase. If for some reason an item is not available, we will contact you directly as soon as possible to make arrangements for future delivery or provide you the option to receive a refund or credit on the item.

Priority Mail

Is the scheduled delivery day guaranteed? Priority Mail remains a non-guaranteed service.


If for any reason you have a warranty issue with one of our products, please visit Contact. Describe your situation, take some detailed photographs, and include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days. For any returns other than warranty issues, a 10% restocking fee applies. All claims regarding cosmetically blemished or damaged items need to be submitted to Contact for review within 72 hours upon receiving the shipment.

Accuracy Guarantee

Guaranteed to Perform

We are committed to providing products that meet, or exceed, the expectations of our most discerning customers. We stand behind that commitment. From the moment you unwrap one of our barrels, as you configure it with your receivers and handguards, and as you fire it on the range or in the field, we want you to experience the unique elegance and uncompromising quality that we craft into every one of our barrels.

We also stand behind our commitment to performance. All Ballistic Advantage barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match grade ammunition.1

If you are not completely satisfied with the form, finish, and fit of any of our barrels, please visit Contact to discuss your concerns. If you find your BA barrel is not performing at the high standard of sub MOA accuracy, please first consult our Troubleshooting Guide on our website. If you need further assistance please visit Contact. Usually, our armorers are able to resolve any issues over the phone. If the issues are not resolved we will ask that the barrel be sent to us for inspection.2 We will either correct the problem or replace the barrel, or if the customer prefers, we will reimburse the purchase price of the barrel.

1 We define sub MOA as a group size of 1 inch or under at 100 yards with a 3 shot magazine fed group, or 5 shot single loaded group.

2 The customer is responsible for the initial return shipping costs of the barrel. If any defects are found, BA will reimburse the shipping costs and either replace or refund the original purchase price of the barrel.

Sub-MOA Guaranteed, American Made, and free shipping every day!

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