Single shot loader for FX Impact with interchangeable caliber sleeves, includes sleeves for .177, .22, .25 and .30 cal.
There is two position set screw (spring ball) for setting tension (with alen key) between open-closed position.
When changing sleeves always press them out (from forward to back) try to avoid pulling them out.
Fits mk1, mk2, M3, M4
NOTE: If you want specific color of the insert please add note at the end of the ordering process otherwise i will send random color