Nielsen Slugs .454 Cal 254 gr 50 pk Torches This hammer spring has a

This hammer spring has a bit more higher power curve compared to the MKI hammer spring what will give you more flexibility and power adjustment options when using the power wheel of your FX Impact

Fits 25mm or 30 scopes tube

Slingshot hammer system (not 25 cal)

By using another type of material for the valve and piston

Fits 1''/25mm OR 30mm scope tubes

Nielsen Slugs .454 Cal 254 gr 50 pk Torches This hammer spring has a254 grains . 45 caliber precision hunting and target pellet with large hollow point. These are accurate and a great choice for hunting with . 45 cal PCP air rifles. NO RETURNS WHATSOEVER! Swaged from soft lead to give excellent expansion for effective and responsible hunting. This pellet is sized . 452 . 457 with a hollow point nose and dish base. This is a very accurate slug in both the long and short (carbine or SS) Airforce Texan. Order in . 457