Upper Receiver Groups (URG’s)

View our latest selection of premium USA made upper receiver groups by The Buffalo.

Looking for the highest quality USA made upper receiver group for tour AR15? You’ve come to the right site. The Buffalo is a father son team that takes pride in offering our customers the most reliable AR15 parts on the market. Each upper receiver group we offer is also 100% free from defect and runs flawlessly right out of the box. In addition, we also specialize in 7.62 x 39 AR uppers and our 7.62 x 39 upper is by far the most reliable upper receiver on the market today. Have a look at our current inventory of upper receiver groups and choose the one that best fits your needs.

Sale! 10.5″ TB 300BO Upper Reciever Delta  Lantac Dragon
10.5″ TB 300BO Upper Reciever Delta Lantac Dragon
10.5" TB 300BO Upper Receiver Delta  Lantac Dragon
  • 10.5"300BO 1-8 Twist Hbar
  • Lantac Dragon Brake
  • KE Arms 12.5 Delta P quad rail
  • YHM Low Profile Gas Block
  • Melonite Treated Gas Tube
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Standard Mil-spec MP 5.56 TB BCG
  • Mil-Spec Charging Handle with Badger Ordnance GEN1 Tactical Latch
not rated $875.95 $775.95Add to cart
Sale! 16″ TB 300BO Delta Standard URG
16″ TB 300BO Delta Standard URG
  • 16"300BO 1-10 Twist Hbar
  • Ke Arms 12.5 Delta P quad rail
  • YHM Low Profile Gas Block
  • Melonite Treated Gas Tube
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP 5.56 B.A.T LLC BCG
Rated 5.00 out of 5
$845.95 $675.95Add to cart
Sale! 16″ TB 5.56 Delta Standard URG
16″ TB 5.56 Delta Standard URG
16" TB 5.56 Delta Standard URG
  • 16"5.56 1-9 Twist Hbar ( 1-8 & 1-7 Available )
  • Ke Arms 12.5 Delta P quad rail
  • YHM Low Profile Gas Block
  • Melonite Treated Gas Tube
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP 5.56 B.A.T LLC BCG
Rated 5.00 out of 5
$825.95 $679.95Add to cart
Sale! 556 upper receiver - We The People 556 Upper Receiver
300BO TB We The People URG
300BO TB We The People URG
  • 16" 300 1-10 Twist  Hbar
  • YHM Diamond quad rail Specter length
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP TB 5.56 BCG
  • comes with Standard brake Lantac Dragon show as option
not rated $795.95 $599.99Add to cart
Sale! 5.56 T.B. We The People URG
5.56 T.B. We The People URG
  • 16" 5.56 1-9 Twist  Hbar (1-8 & 1-7) available
  • 12.5" KE Arms Keymod rail
  • TB 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
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP TB 5.56 BCG
  • Buffalo Latch Charging handle
  • MADE IN USA
Rated 5.00 out of 5
$795.95 $625.95Add to cart
Sale! 7.5″ 300BO TB Delta URG upper receiver group
7.5″ 300BO TB Delta URG upper receiver group
7.5" 300BO TB Delta URG upper receiver group
  • 7" 300BO 1-10 Twist Hbar barrel 
  • Ke Arms 7" Delta P quad rail
  • YHM Low Profile Gas block 
  • Melonite Gas Tube
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP B.A.T LLC 5.56 BCG (uses standard M16- AR15 firing pin)
  • Lantac Dragon Brake 
not rated $899.95 $699.95Add to cart
Sale! 7.5″ 7.62×39 TB Delta URG upper receiver group
7.5″ 7.62×39 TB Delta URG upper receiver group
7.5" 7.62x39 TB Delta URG upper receiver group
  • 7" 7.62x39 1-10 Twist Hbar barrel 
  • Ke Arms 7" Delta P quad rail
  • YHM Low Profile Gas block 
  • Melonite Gas Tube
  • B.A.T LLC Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP B.A.T LLC 7.62x39 BCG (uses standard M16- AR15 firing pin)
  • Lantac Dragon Brake 
not rated $899.95 $699.95Add to cart
Sale! 7.62×39 10.5″ AR15 Upper Receiver
7.62×39 10.5″ AR15 Upper Receiver
T.B. 7.62×39 10.5″ These uppers are coming with our new 308 brake
  • 10.5″ 7.62×39 1-10 Twist Hbar barrel 
  • SMF Tactical 10" rail
  • YHM Low Profile Gas Block 
  • Melonite Gas Tube
  • B.A.T LLC Upper Receiver 
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250″ Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard  Mil-spec MP T.B. 7.62×39 BCG (uses standard M16- AR15 firing pin)
not rated $950.95 $725.95Add to cart
Sale! 7.62×39 Entry Level Upper Receiver Group
7.62×39 Entry Level Upper Receiver Group
Entry level 7.62x39 
  • 16" M4 profile Barrel
  • 1-10 twist rate
  • Low profile gas block
  • 2 piece hand guard
  • TB 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
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP tb 7.62×39 BCG
  • A2 Birdcage 
not rated $450.95 $410.95Add to cart
Sale! 7.62×39 Upper Receiver  16″ Delta Mlok
7.62×39 Upper Receiver 16″ Delta Mlok
7.62x39 Upper Receiver  16" Delta Mlok
  • 16" 7.62×39 1-10 Twist Hbar barrel 
  • Ke Arms 15″ Delta P MLOK Rail 
  • YHM Low Profile Gas block 
  • Melonite Gas Tube
  • B.A.T LLC Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250″ Takedown Pin Bores
  • Buffalo Latch Charging handle
  • Standard Mil-spec MP TB 7.62×39 BCG (uses standard M16- AR15 firing pin)
  • A2 Birdcage 
not rated $875.95 $599.99Add to cart
Sale! 556 upper receiver - We The People 556 Upper Receiver
7.62×39 We The People URG The Buffalo
7.62x39 We The People URG The Buffalo
  • 16" 7.62x39 1-10 Twist  Hbar
  • YHM Diamond quad rail Specter length
  • TB Upper receiver
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250" Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard Mil-spec MP TB 7.62x39 BCG
  • comes with Standard brake Lantac Dragon show as option
not rated $865.95 $625.95Add to cart
Sale! T.B. 7.62×39 10.5″ Noveske KX3 FLAT TOP
T.B. 7.62×39 10.5″ Noveske KX3 FLAT TOP
T.B. 7.62x39 10.5" Noveske KX3 FLAT TOP
  • 10.5″ 7.62×39 1-10 Twist Hbar barrel 
  • YHM Diamond Specter Length  Quad Rail
  • YHM Low Profile Gas Block 
  • Melonite Gas Tube
  • B.A.T LLC Upper Receiver 
  • Forged 7075-T6
  • Precision Machined to Mil-SPEC
  • MIL-A-8625F TYPE 3 CLASS 2 Hardcoat Anodized
  • .250″ Takedown Pin Bores
  • Mil-Spec Charging Handle
  • Standard  Mil-spec MP B.A.T LLC 7.62×39 BCG (uses standard M16- AR15 firing pin)
not rated $905.95 $750.95Add to cart