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Made To Order: Please Allow 12+ Weeks

Our 450 Bushmaster barrels have been machined from 416R Stainless Steel.  The barrel features a Mod HBar profile with M4 feed ramps and has a matte finish.  We offer this 18″ barrel in a 1:24 twist with a 11/16X24 thread pitch.

Accuracy Guarantee 

Our TYPE-A barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match grade ammunition.

Sub MOA is defined as a 3 shot magazine feed or 5 shot single loaded group size of 1 inch or under at 100 yards.

If you are not fully satisfied with the quality and accuracy of your barrel, please contact us at  The customer will be responsible for the initial return of the barrel however, if defects are found, we will not only replace the product but take care of your shipping cost.



18″ Modified HBAR Contour 450 Bushmaster Barrel

  • Caliber: 450 Bushmaster
  • Length: 18″ OAL
  • Gas Block: Low Pro Gas Block .750″ w/1″ Masked Journal
  • Material: 416R Stainless Steel
  • Gas System: Rifle Length
  • Twist Rate: 1:24 Twist
  • Finish: Matte – Bead Blasted
  • Thread: 11/16×24

Bolt Assembly

  • EXO NiB Coated Bolt – Case Hardened, Shot Peened & MPI Tested
  • MAG PHOS Extractor (Fully Assembled)


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