Original price was: $180.00.Current price is: $165.00.

(2 customer reviews)

14 in stock



This AR15 10.3 FSB BARREL CRANE SPEC .070 GAS PORT FSB is specifically designed to be ran in conjunction with a silencer.
We do not guarantee reliable cycling with some manufactures ammunition without the addition of a silencer.

This barrel does not come with front sight parts or sling swivel installed (must purchase separately)


Check out this YouTube video running this MK18 full auto Clone

– 4150 CMV Melonite

– QPQ Corrosion Resistant Finish

– QPQ M4 Feed Ramps Extension

– Carbine Gas

– 1/7 Twist

– 1/2×28 Muzzle Thread

– Pinned F-Mark Front Sight Base

– Gas Port Size .070




Need an AR15 10.3 FSB BARREL for your MK18 Clone build? This is your barrel! Machined from 4150 CMV Steel. Melonite QPQ coating. A fast 1/7 twist to handle the heavier grained ammunition. And to run suppressed, an .070 gas port. Perfect for your build. We also offer the crane spec barrel with the Front Sight Base.

5.56 10.3 INCH CRANE SPEC BARREL (.070)

Not looking to run suppressed? We offer an standard .078 gas port on identical models as well as other build option. Check them out!

5.56 10.3 INCH BARREL (.078)

5.56 10.3 INCH FSB BARREL (.078)




It is the customer’s responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16″. Federal NFA regulations are applicable to this item.

Handling firearms or firearms parts can expose you to lead, and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm.

For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

2 reviews for 5.56 10.3 INCH FSB CRANE SPEC BARREL .070

  1. Marc Maycunich (verified owner)

    Love the ANDROCORP barrels. Have purchased several of the 10.3″. Tried the Crane Spec barrel this time on my everyday/truck gun as I want to run my Dead Air Sandman K on it. Stated might be function problems without suppressor using certain ammunition. I have now run all kinds of ammunition through it without suppressor on and it performs as I expected, flawlessly.

  2. Eric (verified owner)

    Made a Blood Diamond-ish style carbine using this barrel. It’s absolutely awesome. I’ll be getting another soon to make a MK18 Mod 0 style gun.

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