Due to Measure 114, Oregon State Magazine & Firearm Orders that are shipped by Palmetto State Armory will be prioritized for shipment.

Out of stock
Yankee Hill Machine .300 Blackout 16" Threaded/Fluted Carbine Barrel, Melonite QPQ - 70-TF
Out of stock

Yankee Hill Machine .300 Blackout 16" Threaded/Fluted Carbine Barrel, Melonite QPQ - 70-TF

SKU 790776
Brand YHM
Model Number 70TF
UPC 816701017151
Customers must read Compliance Information before purchasing.
This product is fulfilled by a PSA Partner and shipping times may vary.

Product Details


  • Type: Threaded/Fluted
  • Size: 300 AAC Blackout
  • Barrel Length: 16"
  • Twist Rate: 1:8"
  • Thread Size: 5/8-24
  • Material: 4140 Chrome Moly Steel
  • Finish: Melonite QPQ
  • Color: Black
  • For Use With: AR-15 Style Rifle
  • Weight: 1.71 lb
  • Gas System Length: Carbine
  • Diameter at Gas Port: 3/4"


This YHM barrel features a 300 AAC Blackout Chamber. Constructed of 4140 chrome moly steel with a threaded muzzle, the barrel is Melonited for ultimate surface protection. The melonite coating provides a thinner surface than chrome-lining, so bore friction is reduced for better accuracy. In addition, melonite is harder than chrome-lining providing a longer wear life. Our .300 BLK barrels are designed to perform with both subsonic (220 and 208 grain) and supersonic loads. The gas port has been tuned to lock the bolt open on the last round when using subsonic ammunition with a sound suppressor or supersonic ammo without a suppressor. The bolt may not lock back when using subsonic ammunition without a sound suppressor installed. Please note that subsonic ammunition can be more prone to malfunction than supersonic ammunition. This barrel is an excellent choice for a general purpose AR rifle build. It is perfectly suited for use at the range, in a 3-Gun match, or in the field pursuing game.


  • M4 feed ramps
  • Diamond fluted surface


Q & A


All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.