Switchblock® Barrel 5.56

Please allow 3-4 business days for shipment-these barrels are built to order. If an expedited shipping method is chosen, your order will ship next business day after it is completed. All expedited orders with this barrel will be held and shipped together.

Stainless Steel Switchblock® Barrel

--1 in 7" twist improved polygonal rifling

             With 556 Noveske Match Chamber
--Extended feed ramps 
--Bead blasted finish 
--Pinned Switchblock with Gas Tube
--1/2x28 threads 
--Medium Contour

To allow access to the Switchblock®, it cannot be covered up by a handguard. The longest handguard that can be used with a carbine gas system is 7" and a 9" for the mid-length, intermediate, and rifle length. 

 

Barrel Length Specifics – 556 SB



 

Gas System

Weight

10.5”

Carbine

26oz.

12.5”

Carbine

29oz.

14.5”

Mid

34oz.

16”

Mid

37oz.

18”

Intermediate

40oz.

 

 

The Switchblock does not fit under a rail. Certain rails will fit behind it though.

 

The barrel ships with Switchblock installed and the dowel pin in place. This barrel is designed for our Switchblock that is 1" long (INCLUDED). A standard front sight base is 1.9" long and WILL NOT FIT. Barrel installation should be performed by a qualified gunsmith. Removal and installation of the Switchblock is required to complete the assembly process.

 

You can add a headspaced bolt to your barrel for $65, click here

 




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