Tiger Rock AR-15 300 Blackout Complete Upper - 16" Barrel with 15" M-LOK Rail

Manufactured by Tiger Rock
SKU: UB300-15ML
MPN: UB300-15ML
Manufactured by Tiger Rock
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This Tiger Rock Complete AR-15 upper comes with all you need to install it on a lower receiver. It is chambered in 300 Blackout and features a 16” barrel with a 1:8 twist rate. This barrel is made from 4140 steel and is heat treated to RC 28-32 hardness and stress relieved to ensure a long barrel life. It has a durable black Nitride finish that provides an extremely hard and slick surface. The 5/8x24 thread pitch has a .308 style muzzle brake with 9 total ports to help reduce the amount of felt recoil. The pistol length gas system uses a low-profile gas block with a .750” diameter. Surrounding the barrel is a 15” free float handguard with a full length picatinny top rail and multiple M-LOK attachment slots for attaching your favorite lights and accessories. It is made from 7075-T6 aluminum and locks tight to a steel barrel nut. Like the handguard, the receiver is made from lightweight and durable 7075-T6 aluminum and has a black anodized finish. If you are looking for a .300 Blackout AR-15 complete upper receiver to attach to your already assembled lower, you can’t go wrong with Tiger Rock.

  • 16” 4140 steel barrel
  • Chambered in .300 Blackout with 1:8 twist rate
  • Black Nitride barrel finish
  • .30 caliber muzzle brake with 9 ports
  • Pistol length gas system with stainless steel gas tube
  • 15” free float handguard with M-LOK slots
  • Full length picatinny top rail
  • Charging handle with extended latch
  • M16 cut bolt carrier group with Manganese Phosphate finish
  • Mil-Spec upper receiver parts kit
  • 7075-T6 aluminum receiver with type III hardcoat anodizing
  • Compatible with Mil-Spec AR-15 lower receivers

This complete AR upper receiver is assembled with Mil-Spec parts like the dust cover and forward assist. However, it does come with an extended latch charging handle that makes it easier to charge your rifle if you have a rifle scope installed. This upper receiver group also uses an M16 cut BCG with a Manganese Phosphate coating for long term durability. The best part about a 300 BLK upper receiver is the compatibility with Mil-Spec AR-15 lower receivers. All you need is one receiver and you can switch between multiple uppers in different calibers and barrel lengths depending on what you want to shoot for that range day.

Founded in 2011, Tiger Rock Inc is a smart choice for a wide variety of superior quality sporting/firearms accessories.
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Barrel Length16
Barrel Material4140 Chrome Moly Steel
BrandTiger Rock
Caliber Gauge300 Blackout
Gas System LengthPistol
Gas System TypeDirect Impingement
Handguard15 in M-LOK Rail
Muzzle DeviceMuzzle Brake
Twist Rate1:8

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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