AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH
or 4 interest-free payments of $125.50 with
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by 3 brand warranties what it covers
Frequently bought together
From orders that included this itemProduct description
AT3 16″ 223 Wylde Complete Upper with M-LOK Handguard
Built to Order – Ships Within 3 Business Days
AT3 Complete Upper assemblies are Built for Accuracy and Reliability – Guaranteed.
- Quality Where it Counts – premium components like Faxon Firearms barrels, and AT3 Tactical’s handguards and uppers. Don’t settle for “bargain uppers” with unknown components.
- Guaranteed Reliability– Carefully assembled before shipment, and backed by the AT3 Lifetime Warranty
- Unbeatable Value – Unbeatable quality in the price range. Save on parts and free assembly vs purchasing the components separately.
This fully assembled AR-15 complete upper includes:
16″ Faxon Firearms .223 Wylde Heavy Fluted Match Grade Barrel (with Faxon low profile gas block & midlength gas tube)

Faxon’s Heavy Fluted Match Grade Barrel offers the best balance of repeatable accuracy, light weight, and affordability. Built using 416 stainless steel with 5R rifling for superior accuracy, and finished with a hard black nitride finish for long-term durability, this is a great foundation for a tack-driving AR that isn’t a pain to lug around.
AT3 SPEAR Free Float M-LOK handguard (choose length with dropdown menu)

Lightweight and tough, this unique M-LOK handguard is the best rail we offer. This rock-solid 6061 aircraft aluminum handguard that withstands the harshest treatment. 5-slot M-LOK-to-Picatinny rail section included
AT3 Tactical Slick Side 6061 T-6 Upper Receiver

Precision machined from 6061-T6 aluminum, this assembled upper is sleek, with extra material around the barrel extension for superior accuracy. It mates perfectly with our SPEAR handguard and feature M4 feedramps for reliable feeding of ammunition.
Your choice of 3 different muzzle devices (choose type with dropdown menu)

Learn more about these muzzle devices: A2 Flash Hider, Combat Flash Hider, MUZZLOK Ported Flash Hider
Top Add-Ons
AT3 Black Nitride Bolt Carrier Group
Finish your complete upper with a reliable, easy to clean Black Nitride Bolt carrier group from AT3. They feature M16 carriers, and MPI inspected bolts made from 9310 steel and properly staked grade 8 gas key screws.
Your choice of Standard GI or Extended-Latch Charging Handles from AT3

These 7075-T6 charging handles slide right into our uppers for a complete top end. Choose between a standard latch and extended latch designs to fit your needs and budget.
More info:
This product is built-to-order in our Minnesota facility. Quality takes time – please allow up to 7 days for your order to ship.
All AT3 upper assemblies come with a Lifetime Warranty – if you ever have an issue, let us know, and we’ll make it right. It’s that simple.
Don’t see the options you’re looking for? Let us quote you a custom upper – contact us now.
Warranty Note: Curated by AT3 Tactical. Components in this kit are covered by each manufacturer’s own warranty — AT3’s warranty does not extend to or replace the warranties of the individual parts included. Warranty terms for some component brands may not yet be listed in the warranty tab; contact the manufacturer directly for in-depth and up to date coverage details.
Specifications:
- Barrel Length: 16″
- Total Assembly Length: 26″
- Gas System: Midlength
- Barrel Profile: Heavy Fluted profile
- Twist Rate: 1:8
- Barrel Steel: 416 Stainless Steel
- Barrel Finish: QPQ Corrosion Resistant (Nitride)
- Chamber: .223 Wylde
- Muzzle Thread: 1/2-28
- Barrel Extension: M4 with Nickel Teflon Coating
- Diameter at Gas Block: .750″
- Gas Block Type: Faxon low-profile
- Receiver Material: Billet 6061-T6 Aluminum
- Finish
- Black: Hardcoat Anodized
- Flat Dark Earth: H-267 Magpul® Flat Dark Earth
- OD Green: H-232 Magpul® OD Green
- Pink: H-224 SIG™ Pink
- Burnt Bronze: H-148 Burnt Bronze
- Tungsten: H-237 Tungsten
- Titanium: H-170 Titanium
3 reasons why AT3 Complete Uppers are better than the rest.
1 – Quality Where it Counts
The single most important component of an accurate AR-15 is the barrel. AT3 uppers are built using barrels from top brands like Ballistic Advantage and Faxon Firearms, for excellent performance and accuracy.
But the quality doesn’t stop at the barrel. Our AT3 handguard and upper work together to provide superior accuracy, meaning this upper assembly offers quality without compromises.
Many of the “bargain” complete uppers on the market source their parts from the lowest bidder – at the expense of accuracy and reliable function. AT3 is committed to using only top-quality components in our upper assemblies.
2 – Guaranteed Reliability
AT3 complete uppers are assembled with strict quality controls and carefully packaged for delivery to the customer. All AT3 complete uppers offer a Lifetime Warranty – if you ever have an issue, let us know, and we’ll make it right. It’s that simple.
3 – Unbeatable Value
When you buy a complete upper, you’ll save money and parts and assembly vs purchasing the components separately. Our complete uppers are not the cheapest on the market, but they deliver unbeatable quality in the price range. We sell direct to the customer, and cut out the middle-men, to deliver the best value in AR-15 upper assemblies.
All 24 options on this page
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Red, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-RED
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Red, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-RED
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Red, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-RED
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Pink, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-PNK
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Pink, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-PNK
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Pink, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-PNK
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Burnt Bronze, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-BB
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Burnt Bronze, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-BB
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Burnt Bronze, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-BB
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Tungsten, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-TG
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Tungsten, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-TG
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Tungsten, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-TG
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Titanium, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-TI
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Titanium, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-TI
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Titanium, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-TI
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Black, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Black, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Black, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Flat Dark Earth, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-FDE
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Flat Dark Earth, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-FDE
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: Flat Dark Earth, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-FDE
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: OD Green, Muzzle Device: A2 Flash Hider | SKU: FFML-SPEAR-15-MATCH-0-ODG
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: OD Green, Muzzle Device: Combat Flash Hider | SKU: FFML-SPEAR-15-MATCH-1-ODG
- AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH - Color: OD Green, Muzzle Device: MUZZLOK Flash Hider | SKU: FFML-SPEAR-15-MATCH-2-ODG
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Questions & Answers
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Warranty & returns
Backed by the AT3 Lifetime Warranty!

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.
This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.
In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.
If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.
If your product is in need of warranty service, please contact AT3 Tactical to start the process
Our contact info is available here. To expedite processing, please provide your order information and description of the defect.
Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.
Backed by the Faxon Firearms Warranty!
Faxon Firearms Warranty
We do understand that life happens and that often a purchase will need to be returned. Customers may return any product, for any reason, in line with the requirements & policies below.
For any errors on Faxon’s part, after notification from the customer, Faxon will dispatch a Fed-Ex Ground label for the return of the product. Upon receipt and inspection at Faxon, a replacement will be sent to the customer via Fed-Ex Ground with tracking information sent to the customer.
REQUIREMENTS
- Faxon will only refund products purchased directly through Faxon Firearms.
- If you purchased a product through one of Faxon’s authorized dealers and would like to return the product for a refund, you must contact the dealer for your refund.
- Merchandise must be in new condition with original packaging
- Merchandise must be return-shipped in a protective box
- A full refund including shipping if the return resulted from our error, otherwise we will deduct the shipping costs from the refund.
- All product replacements done under warranty can be handled by Faxon directly.
- The customer will receive a refund within 10 business days of our receiving your return. The refund issued in the same form of payment used for purchase.
- No return will be granted for a product that is modified in any way
- No returns for refund after 30 days from the delivery date of the product.
- There will be a 15% restocking fee on all returns.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
Backed by the YHM Warranty!
Yankee Hill Machine Warranty
- YHM products are warranted for life to be free from defects in material and workmanship. Any such defect for which YHM is given written notice by a customer will be remedied by YHM.
- All returns must include a copy of the RMA form.
- YHM does not warranty against products that are deemed to be damaged through unreasonable use, corrosion, neglect, or ordinary wear and tear.
- YHM products are sold “as is” and have no implied warranties of merchantability or fitness for a particular purpose.
- YHM reserves the right to make changes at any time and without notice to policies, price specifications or designs, to add or remove accessory materials, and to add or delete items without incurring any obligation.
- All products being returned to YHM require a pre-approved Return Material Authorization (RMA) number.
- Shipments without an RMA number or without an RMA Form may be refused.
- RMA numbers are valid for a period of 30 days. After that, you must call for a new RMA number.
- Please be as specific as possible with the reason for the return, otherwise, we may not be able to troubleshoot the exact problem.
- If there is no reason for the return or the description is vague, only basic tests will be performed and if no issue can be found it will be returned back to the customer in the same condition it was received.
Shipping
- The customer is liable for any shipping charges for items sent to YHM.
- Products returned to YHM via C.O.D or Freight Collect will be automatically refused.
- The customer will be responsible for return shipping charges if the products are found to be non-defective.
- The RMA form must accompany the shipment and be filled out in its entirety, including Serial#, and be accompanied by an ATF Form 3 or Form 4 (if applicable).
- If the product is determined to be defective and covered under warranty YHM will pay the return shipping charge and refund the initial shipping cost from the customer to YHM.
Warranty Repairs
- YHM will repair or replace products that are under warranty free of charge. Custom made products are non-refundable. If the custom product is defective, we will repair or replace the product per our discretion.
Non-Warranty Repairs
- There is a minimum labor charge of $25 plus the cost of parts to repair non-warranted issues. YHM will notify the customer with a quote before any work is performed. If the customer declines the repair, YHM will ship the product back to the customer un-repaired or will dispose of the product with the customer’s approval.
Exchanges
- YHM has a “no questions asked” exchange policy for items purchased directly from YHM.
- Claims for YHM products purchased through other Distributors/Dealers must be handled according to their exchange policy.
- Should the item you ordered not be to your expectations, simply return the item (unused) with a copy of the invoice within 30 days. We will do everything possible to speed your exchange. The customer is responsible for all shipping costs.
Refunds
- YHM will refund the full purchase price at our discretion for items purchased directly from YHM.
- Claims for YHM products purchased through other Distributors/Dealers must be handled according to their return policy.
- The item must be received by YHM unused, in the original packaging, and accompanied by a copy of the invoice within 30 days. We will do everything possible to speed your refund. No refunds are allowed after 30 days of the invoice date.
Store Credit
- After 30 days but before 90 days, returns will be issued store credit.
- Claims for YHM products purchased through other Distributors/Dealers must be handled according to their refund policy.
- Credit must be pre-approved and is not guaranteed until the product is received, inspected, and approved by the RMA Department to ensure that it meets the credit requirements.
- There is a twenty percent (20%) restocking fee for all credit returns.
- No exchanges/refunds/credits will be given after 90 days from the invoice date.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.














