Custom 358 Legend Premium Barrel Stainless

• Gas Block Journal *

  .750.875.936

• Add Gas Block *

  No ThanksAdd .750 Stainless Block + $40.00Add .750 Steel Nitride Block + $35.00Add .825 Steel Nitride Block + $35.00Add .936 Steel Nitride Block + $35.00Add Superlative Arms Adj. Gas Block + $95.00Add Rifle Speed Gas System + $204.99

• Gas System Length *

  PistolCarbineMid-LengthRifleRifle +1Rifle +2

  If you are unsure of the gas system length you need just choose the one you think is most likely, we will contact you if we are going to make any changes.

• Add Gas Tube *

  No ThanksAdd Pistol Length Tube + $14.50Add Carbine Length Tube + $15.50Add Mid-Length Tube + $16.50Add Rifle Tube + $17.50

• Crown/Muzzle *

  Flat Target No Crown11° Crown No Thread + $15.005/8x24 Threaded Flat Target + $45.005/8x24 Threaded 11° Crown + $60.0011/16x24 Threaded Flat Crown + $45.0011/16x24 Threaded 11° Crown + $60.003/4x24 Threaded Flat Crown + $45.003/4x24 Threaded 11° Crown + $60.00

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

• Barrel Finish *

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

  Cryogenics will add 2 weeks to your lead time.

•  Sig/Q Taper * + $25.00

  This 25° Taper is for specific muzzle devices and suppresors, you will know if you need this.

• Add a 358 Headspaced Polished BCG/Bolt *

  No ThanksAdd a Headspaced Polished 358 Bolt + $75.00Add a Complete Headspaced/Polished BCG + $140.00Send in your Bolt for Polish and Headspace + $15.00

  This bolt will be polished, headspaced and test-fired with your barrel. This is a critical part of cycling with the 358 AR. We strongly recommend you purchase a bolt, or if you would like to send yours in, we will polish it for you. Please make sure your bolt is clearly marked with your name and order number if you opt to send your bolt in.

•  Thread Protector * + $18.50

  We will put the appropriate thread protector on you barrel.

•  Assemble Complete Upper with My Parts * + $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, PIin 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 your 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 25-30 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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