Before ordering, verify that your Front Plug is fitted with two or three 10-32 tapped holes on its ARCA Swiss Rail side. These threaded holes are needed to receive the Harris bipod adapter. If your Front Plug is not fitted with 10-32 tapped holes, you could buy our newer Front Plugs Kits by following any of these links:

BipodeXt MSR models Front Plug Kit (fits models TAC II and ARC II)

BipodeXt PRS models Front Plug Kit (fits both TAC III and ARC III)