Replaces the plastic top rail of the XLY ARP9 with a metal one.
**PLEASE NOTE**
**This rail kit is only compatible with the XYL version of the ARP9**
HLF version is not compatible!
Replaces the plastic top rail of the XLY ARP9 with a metal one.
**PLEASE NOTE**
**This rail kit is only compatible with the XYL version of the ARP9**
HLF version is not compatible!