Custom 450 Bushmaster Premium Barrel Stainless

• Gas Block Journal *

  .875.936

• Add Gas Block *

  No Thanks.875 Steel + $35.00.936 Steel + $35.00.875 Superlative Arms Adj. Gas Block + $95.00.936 Superlative Arms Adj. Gas Block + $95.00.875 Rifle Speed Gas System + $205.00

• Gas System Length *

  PistolCarbineMidRifle

• Add Gas Tube *

  No ThanksPistol + $14.50Carbine + $15.50Mid + $16.50Rifle + $18.50

• Crown/Muzzle *

  Flat Target Crown11° No Threads + $15.0011/16-24 Threads Flat Crown + $45.0011/16x24 Threads 11° Crown + $60.003/4x24 Threads Flat Crown + $45.003/4x24 Threads 11° Crown Crown + $60.00

• I plan to shoot... *

  Sub-Sonic AmmunitionSuper-Sonic AmmunitionBoth Subs and Supers (Adjustable Gas Block Suggested)

  We will set the gas port size based on the ammunition you plan to shoot.

Adding Nitride/Cerakote to your barrel will extend your lead time out 2-4 weeks depending on our vendor lead time.

• Barrel Finish Options *

  Bead Blast SS (Matte Finish)Polished SS (Shiny Finish) + $50.00Nitride Black (QPQ) + $50.00Graphite Black Cerakote + $50.00Elite Blackout (Shiny Finish) Cerakote + $50.00Titanium Cerakote + $50.00Flat Dark Earth (FDE) Cerakote + $50.00McMillan Tan Cerakote + $50.00Burnt Bronze Cerakote + $50.00O.D. Green Cerakote + $50.00Noveske Bazooka Green Cerakote + $50.00Sniper Gray Cerakote + $50.00Sniper Green Cerakote + $50.00
•  Cryogenics * + $100.00

  Cryogenics adds 2 weeks to barrel production time.

• Add a Head-Spaced Bolt/BCG *

  No ThanksBolt OnlyMake it a Complete Bolt Carrier Group

•  Assemble Complete Upper with My Components * + $150.00

  You send us your components and we will send you back a complete upper receiver. Test fired and ready to go! We've got the tools! Put the guys to work!

•  Perfect Fit * + $45.00

  Do you like a "Seamless Transition"? Send us your hand-guard and suppressor so we can make your barrel the exact length to hide the transition from barrel to suppressor. You don't need to use an FFL, we can accept your suppressor as "Gunsmithing". Easy!

•  Double Dimple * + $45.00

  We dimple our barrels! If you want a second dimple we can do that! Send us your gas block for correct placement, or purchase one from us!

•  Gas Block...Pin-It * + $45.00

  We can pin your gas block to your barrel...in fact we will if that helps you out! We will drill it, then you can set the pin. We will need your gas block in order to set the dimples correctly. See shipping instructions for information on sending that to us.

•  Pin & Weld Muzzle Device * + $75.00

  We will install your muzzle device on your barrel then pin and weld it. It’s not going anywhere!

We won't over promise and under deliver...We'd rather send your barrel to you early, then have it be past our estimated lead time. Machining a quality barrel takes time. We can't speed up the machines in order to lessen lead times, that will compromise quality and accuracy. We have recently brought in new machines and 2 more guys in an effort to shorten lead times. We are committed to making quality and that puts our lead times out. We apologize for the waits, and hope you will be willing to wait while we make you the best barrel we can. You are welcome to call with any questions! We are always glad to talk to you!

•  Current Lead Times are 30+ Weeks *

Check "Shipping Instructions". This link will take you to the Mos-tek "Shipping Instructions" page. There are shipping instructions at the top of this page. Please follow these when shipping in your firearm. If you need clarification feel free to call anytime (480) 440-1878

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