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to provide a fast, secure, and enjoyable experience. by George, from FL, United States Asked on July 15, 2022
The FAB Defense GL-CORE AR-15/M4 Skeleton Style Buttstock will fit both Mil-Spec and Commercial buffer tubes. The included adapter will allow it to work on both. So it will work with a Rock River Arms buffer tube and you will not need to change the buffer or spring.