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!
A low-profile, left side-folding strut design compatible with all platforms utilizing an M1913 interface at the rear of the receiver. The FS1913™ is a complete assembly offering pull-through opening and a solid lock-up when unfolded.
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