You only need to purchase this hammer if your airgun is the non fac version. (sub foot pounds version)
FAC versions already have the heavier hammer spring, hammer and spring guide from the factory pre-installed.
If you have upgraded to our “Walther Dominator 1250 Regulator Upgraded Design 45J V2” and you do not see an increase in power, its possible that you have the low power hammer spring, hammer and spring guide from the factory.
You can then opt for "Walther Dominator 1250 Power Upgrade Kit" which comprises of all 3 of the below parts.
Walther Dominator 1250 Heavier Hammer Only for 45J Regulator
Walther Dominator Hammer Spring Only 45J
Walther Dominator Hammer Spring Guide Only 45J
If you intend to purchase just the Heavier Hammer you can add this product to cart.
Contact us if you need any customization and we shall be happy to get it done for you.
If you have any further query about the listed product you can use the above link to “Ask a Question”