CVA Replacement QRBP Breech Plug 2010-Plus Wolf Optima and Accura V2 Muzzleloader Rifles 80872. This can easily be done with the QRBP fitting tool that comes with the QRBP as well as simple step by step instructions. Each QRBP that comes equipped on 2010 CVA Wolf Optima& Accura V2 rifles is fitted to that particular barrel that it came with. This is why it is so easy to install and remove. Features of Replacement QRBP for Wolf Optima and Accura V2 Muzzleloader Rifles: Once the QRBP is properly installed no tools are required for installing or removing QRBP. Fits Wolf Optima & Accura V2 rifles after it has been fitted to the barrel. Package Contents: CVA Replacement QRBP Breech Plug 2010-Plus Wolf Optima and Accura V2 Muzzleloader Rifles 80872 CVA 80872: Replacement QRBP Breech Plug 2010-Plus Wolf Optima and Accura V2 Muzzleloader Rifles