Hammer spring for PR900 (SMK / Artemis / Snowpeak) air rifle.
Suitable for all versions including PR900W, PR900S, Gen2 and R

Different versions available… It has came to our attention that different lengths have been used in these rifles. It is best to measure the length of your existing and compare or alternatively buy longer and cut down to your desired tuned power.

Note fitting longer springs will increase the power, the legal limit in the UK is 12ftlb.