Replacement hammer for the FX impact air rifle. Available in 3 versions:
– UK sub 12ftlb spec for MK1, MK2 & M3
– International Spec/FAC (high power) / international spec Ref: 19622 (for versions without Power Plenum)
– Power Plenum (high power) FAC Ref: 20270 (note for power plenum the insert is now included). This type is now also fitted to the SUB 12FTLB M4