The FS1913A is the aluminum strut version of the FS1913 (polymer strut). It's stiffer, stronger, and more appropriate for use with heavy calibers such as 375 RAPTOR. Plus, we can Cerakote it!
The Black Collar Arms SBD💨 line is here! These precision integrally suppressed firearms are among the quietest centerfire rifle caliber guns ever made.
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