Mercury Rise Intrubuster HPA Tuning Chamber Adapter Backpack and the authentic feel expected

and the authentic feel expected from all RAP4 milsim firearms

- 11 inch Barrel with Muzzle (12 inch over all)

This kit comes with everything you need to make your marker air-stock ready for your kit: https://mcsus

Engineered weight and fitting to the barrel for maximum impact to the X-68’s to ensure optimal power and accuracy

Mercury Rise Intrubuster HPA Tuning Chamber Adapter Backpack and the authentic feel expectedGet maximum performance from your Mercury Rise IntruBusterwithout internal modifications that can overstress parts or speed up wear. This system supports multiple air options and is designed to increase power efficiently. Kit Includes: 1 Tuning Chamber Adapter (Stainless Steel) Buttstock Configuration To use an 88g CO or 12g CO at the buttstock, this adapter is required: https: mcsus. com products expansion chamber for air and co2 12 chambers For the