AR15 Upper Receivers For Sale

View our latest selection of Premium USA made AR15 Upper Receivers at The Buffalo.

Looking for the best USA made upper receiver for your AR15? You’ve come to the right place. Order top quality USA made AR15 receivers, AR15 accessories and high end 7.62×39 upper receiver groups today. Each receiver is also 100% free from defect and will run flawlessly right out of the box. In addition, The Buffalo proudly provides by far the most reliable 7.62 x 39 upper on the market. Need more? Check out our other top sellers including our popular AR15 upper receiver parts kits, billet upper receiver, Stripped A2 Upper Receiver, Forged AR15 9mm Slick Side uppers, State of Jefferson upper receiver and more.

Sale! 5.56 & 9MM Billet Assembled Side Charging Upper  Non-Reciprocating
5.56 & 9MM Billet Assembled Side Charging Upper Non-Reciprocating
5.56 & 9MM Billet Assembled Side Charging Upper  Non-Reciprocating
  • Machined from 6061 billet aluminum
  • Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
  • Compatible with all standard AR-15 components and most aftermarket parts — Machined pocket to accomodate Magpul BAD Lever
  • The ONLY Non Reciprocating Side Charger on the market to accept ANY standard MILSPEC BCG — Just change out cam pin with the modified cam pin we provide
  • Adjustable tension slide lock on charging handle
  • Rear dust cover trap door that seals shut when mated with lower
  • Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
  • Save money by building your own AR-15 rifle from the ground up exactly the way you want it configured
  • Designed to match lines with New Frontier Armory C-4 Billet Lower and most forged AR-15 Lowers
  • Ejection port cut to eject large calibers up to .458 SOCOM shells
not rated $298.95 $224.99Add to cart
Sale! AR 15 upper receiver parts kit by the buffalo
AR 15 upper receiver parts kit
  • Ejection Port Door Kit
  • Forward assist 
not rated $20.99 $17.99Add to cart
Sale! AR15 Billet Upper Receiver
AR15 Billet Upper Receiver

This is the newest and one of the most sought after AR Billet Upper Receiver being provided by The Buffalo.

The receiver is the highest Quality CNC Billet AR 15 Receiver. Every cut on the Receiver has been measured and remeasured for correctness and fit. The receiver is machined from 6061-T6 and is offered stripped. They have been machined to except the bad levers. These are made from billet and hard coat anodize black. We machine these receivers out of billet Aluminum and finish it in a durable Hard Anodized finish. We also flared the side walls of the receiver to eliminate accidental bolt release problems  The beefier design has added strength in several areas and it allows for less flex than forged upper receivers.

we machined our billet upper receiver to accept most aftermarket rail systems as well as pre-install the forward assist and the ejection port door.

Our billet upper receiver matches our billet lower perfectly, but it also works great with standard forged lowers so it’s fully up to you on which receiver you want to use.

Please add in the notes what caliber you want it labeled with or if you want left blank.

not rated $265.95 $199.95Add to cart
Sale! Charging Handle Buffalo Latch
Charging Handle Latch – The Buffalo
Our Buffalo Charging handle  is machined entirely from billet 7075-T6 aluminum and coated in Type III Hard Coat Anodize. The Buffalo Latch  features a larger locking latch for ease of access and a more robust roll pin interface for added strength and durability.
FEATURES
  • ROLL PIN HAS BEEN REPLACED WITH COIL ROLL PIN AND RELOCATED
  • WRAP AROUND STRIATIONS FOR INCREASED ACCESSIBILITY
  • LARGE SURFACE AREA
  • SLIM PROFILE
  • LIGHTWEIGHT
  • STRONG & DEPENDABLE
  • LIFETIME WARRANTY
  • MADE IN AMERICA
not rated $69.95 $32.95Add to cart
Sale! Forged AR15 9mm Slick Side upper
Forged AR15 9mm Slick Side upper
  • T.B. Upper receiver
  • Forged 7075-T6
  • T - Marked
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hard coat Anodized
  • .250″ Take down Pin Bores
  • Laser marked 9mm
  • Made in America
not rated $100.95 $75.95Read more
Sale! Forged AR15 upper receiver
Forged AR15 upper receiver
 
  • T.B Forged upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hard coat Anodized
  • .250″ Take down Pin Bores
  • Made in America
Available labeled in 5.56 and 300BO add in the notes which caliber you would like shipped with your order. Thanks 
not rated $150.95 $85.95Add to cart
Forged AR15 upper receiver stripped
Forged AR15 upper receiver stripped
  • B.A.T LLC Upper receiver
  • Forged 7075-T6
  • T - Marked
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hard coat Anodized
  • .250″ Take down Pin Bores
  • Made in America
not rated $54.00Add to cart
Side Charging AR-15 Stripped Billet Upper Receiver
Side Charging AR-15 Stripped Billet Upper Receiver
5.56 & 9MM Billet Assembled Side Charging Upper  Non-Reciprocating
  • Machined from 6061 billet aluminum
  • Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
  • Compatible with all standard AR-15 components and most aftermarket parts — Machined pocket to accomodate Magpul BAD Lever
  • The ONLY Non Reciprocating Side Charger on the market to accept ANY standard MILSPEC BCG — Just change out cam pin with the modified cam pin we provide
  • Adjustable tension slide lock on charging handle
  • Rear dust cover trap door that seals shut when mated with lower
  • Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
  • Save money by building your own AR-15 rifle from the ground up exactly the way you want it configured
  • Designed to match lines with New Frontier Armory C-4 Billet Lower TB Flared and the GPM 9 and most forged AR-15 Lowers
  • Ejection port cut to eject large calibers up to .458 SOCOM shells
not rated $224.95Add to cart
Sale! State of Jefferson Upper Receiver
State of Jefferson Upper Receiver
State of Jefferson Upper ReceiverLimited Edition Laser Engraved We The People State of Jefferson Upper The Buffalo is proud to be the only person making theseComes complete with forward assist and ejection port cover installed
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250″ Takedown Pin Bores
  • MADE IN AMERICA
not rated $145.95 $125.95Add to cart
Sale! Stripped A2 Upper Receiver
Stripped A2 Upper Receiver
  • Upper receiver comes completely stripped.
  • Forged from 7075 aluminum that has been T6 heat-treated,
  • hard coat anodized (Mil-A-8625A) and Teflon® coated.
  • Features a shell defector and forward assist.
  • Made in America
not rated $165.95 $120.95Add to cart