Custom 358 AR Premium Barrel Stainless

$382.00

Barrel

  • Barrel Length *

  • If you need a custom length let us know! When ordering choose the barrel that is closest to the size you are looking for, then leave a comment on length and we will be in touch.

  • Barrel Profile *

    Check Barrel Profiles This link will take you to the barrel profile page.

  • Twist Rate *

  • Gas Port Sizing *

    Not all Gas Blocks will work with all barrel configurations. If you order a barrel under 9" with a "Q" taper you a WILL NOT be able to use a Rifle Speed gas system. If you order a barrel under 6" the Superlative Arms Gas Block will not work. If you have questions just ask! We are glad to talk to you! (480) 440-1878

Gas Block Journal

  • Gas Block Journal *

  • Add Gas Block *

Gas System Length

  • Gas System Length *

    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 *

Crown/Muzzle

  • Crown/Muzzle *

Barrel Finish

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

  • Barrel Finish *

  • Cryogenics will add 2 weeks to your lead time.

Sig/Q Taper

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

Add a 358 Headspaced Polished Bolt/Thread Protector

  • Add a 358 Headspaced Polished BCG/Bolt *

    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.

  • We will put the appropriate thread protector on you barrel.

Available Services

  • 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!

  • 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!

  • 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!

  • 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, or if you'd rather you can send your barrel nut and we will install it.

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

Current Lead Times (You must check the acknowledgment box)

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, so we will keep making quality and increase lead times. 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!

Shipping Instructions

If you are shipping there is a tab at the top of the site page that will give you those instructions. If you have any questions give us a call! (480) 440-1878

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    Custom 358 AR Premium Barrel Stainless$382.00
    Barrel
    Barrel Length -
    Custom Length - $25.00
    Barrel Profile -
    Twist Rate -
    Gas Port Sizing -
    Gas Block Journal
    Gas Block Journal -
    Add Gas Block -
    Gas System Length
    Gas System Length -
    Add Gas Tube -
    Crown/Muzzle
    Crown/Muzzle -
    Barrel Finish
    Barrel Finish -
    Cryogenics - $100.00
    Sig/Q Taper
    Sig/Q Taper - $25.00
    Add a 358 Headspaced Polished Bolt/Thread Protector
    Add a 358 Headspaced Polished BCG/Bolt -
    Thread Protector - $18.50
    Available Services
    Assemble Complete Upper with My Parts - $125.00
    Perfect Fit - $45.00
    Double Dimple - $40.00
    Gas Block, PIin It! - $45.00
    Pin & Weld your Muzzle Device - $75.00
    Current Lead Times (You must check the acknowledgment box)
    Current Lead Times are 25 Weeks -
    Shipping Instructions
    Comments
    -
    Subtotal

    Product total

    Options total

    Grand total

    Description

    BARREL DESCRIPTION:

    • MATCH GRADE
    • 416R STAINLESS
    • VARIOUS GAS SYSTEMS
    • .750, 8.75, .936 GAS PORTS
    • DIMPLED FOR GAS BLOCK
    • 358 FEED RAMP
    • MUZZLE THREAD OPTIONS
    • NITRIDE AVAILABLE
    • CERAKOTE AVAILABLE
    • BEAD BLASTED (MATTE FINISH)

     

    Barrel lengths: Starting at 8″ through 24″

    Custom Length: If you need a custom length let us know!   When ordering choose the barrel that is closest to the size you are looking for, give us the details in the comments section and we will be in touch!

    Barrel Profile: Check out our Barrel profiles.  Have your own design?  We can make a custom profile.

    The perfect barrel for straightwall shooters that reload and want options! Manufactured from 416R Stainless Steel, this custom barrel gives you high quality at a price you can appreciate. Additional features include M4 feed ramps, custom length, a number of options for the muzzle as well as a variety of add-ons for performance and convenience.  For an accurate and reliable barrel you won’t be disappointed with the MOS-Tek 358 AR.

    Additional information

    Weight 3 lbs
    Dimensions 20 × 2 × 2 in

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