Brocock shroud spacer. Available in 2 versions depending on caliber and power

M12 thread (12mm)
Fitted to all .177 and .22 12ftlb / 16Joule rifles. – 17″ barrel

M14 thread (14mm)
Fitted high power 23″ .22 barrels and all .25 barrels regardless of length

If in doubt please doublc check measurement with your barrel.

Fits:
Compatto MK2
Compatto XR
Does not fit the original compatto unless changing the barrel also! However we have had customers modify and glue these to use on the MK1 as original part is no longer available.