Cheek height and length of pull are the two fit adjustments most likely to change how naturally a scoped Tikka mounts. The Nokka Performance Kit pairs the Drop Comb Cheek Riser with the LOP option you choose, at a lower bundle price than buying the selected parts separately. Choose this kit when your head lifts to find the scope and the stock feels short or cramped after eye relief is set. If only one issue shows up, buy that part on its own. Choose your LOP option Original LOP Kit: choose one supplied 10 mm or 20 mm spacer as the default setup. Flat-Recoil LOP Spacer: choose one 10 mm, 20 mm, or 30 mm size as the default setup when pad angle and shoulder contact are part of the fit problem. Stacking rule for every LOP spacer: For every LOP spacer, use one spacer by default. Stacking any combination of LOP spacers can be done only in special cases, but a multi-piece stack does not create the strongest possible connection and is not our recommended default. If stacking is required, glue the spacer pieces together before final installation and use only the confirmed locating and fastening hardware for the setup. Contact us first if the stacked setup and hardware have not already been confirmed. What's included Drop Comb Cheek Riser Your selected Original LOP Kit or Flat-Recoil LOP Spacer Compatibility Designed for Tikka T3, T3x, and T1x factory-stock setups. Aftermarket stocks and recoil pads vary; send us a clear photo before ordering and we will confirm the fit path. Installation: no drilling or permanent stock modification Made in Australia Use the Tikka fit checklist before ordering if you are not sure whether the issue is eye relief, cheek height, or stock length. Common questions Original LOP Kit or Flat-Recoil? Choose Original when you need standard 10 mm or 20 mm length adjustment. Choose Flat-Recoil when you also want to change pad angle and shoulder contact, selecting one 10 mm, 20 mm, or 30 mm spacer as the default setup. Can I stack LOP spacers? For every LOP spacer, use one spacer by default. Stacking any combination of LOP spacers can be done only in special cases, but a multi-piece stack does not create the strongest possible connection and is not our recommended default. If stacking is required, glue the spacer pieces together before final installation and use only the confirmed locating and fastening hardware for the setup. Contact us first if the stacked setup and hardware have not already been confirmed. Will both parts fit my rifle? They are designed for Tikka T3, T3x, and T1x factory-stock setups. Send us a clear photo before ordering if your stock or recoil pad is not factory. How long does installation take? Allow about 20 minutes for many setups. Set eye relief first, fit the LOP option, then set cheek height. Stop and contact us if any part does not align or tighten securely. Do you ship internationally? Yes. Available shipping options and any duties or taxes are shown in cart and checkout before payment.