DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System All Calibers 10 Adjustable User Settings. As always DPM products are designed and developed with users safety as a priority. Exceptional manufacturing and engineering using high-end materials. This system works due to the multi spring intricate rod (three springs) and controls the functionality of the pistol. The third spring which is contained within the rod controls the movement of the slide so it never rams on the frame. The spring plug must always be installed when the DPM Recoil Rod and springs are used. The external springs are different in length the long spring is heavy and the short is light so the shooter can fine tune the pistol on the opening and locking positions (slide on the battery) according to his/hers personal standards. Specifications for DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System: Manufacturer: DPM Fabric/Material: Spring Steel Gun Make: Tanfoglio Gun Model: Tanfoglio Stock II Features of DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System Faster follow up shots Improved firing speed Slide and Frame Protection Elimination of jams Significant recoil reduction Better double-tap concentration Better control and greater accuracy Package Contents: DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System What firearm models does the manufacturer say DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System is compatible with? The manufacturer suggests that DPM Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System is compatible with Tanfoglio Stock IIDPM MS-TF/3: Tanfoglio Limited Custom Stock II/ Buzz Custom Mechanical Recoil Reduction System All Calibers 10 Adjustable User Settings