Bore-Up Set for TM MP5-A4/A5/SD5/SD6 Replicas
A set containing a cylinder, piston hear and a cylinder head made for TM MP5-A4/A5/SD5/SD6 in order to allow for augmented performance by increasing the diameter of the main pneumatic system, which directly results in an increased muzzle velocity without having to replace the main spring with a more powerful one. This also prolongs the replicas longevity of the replica.
Each part from the set was additionally reinforced. Thanks to that, the set is ideal for use with powerful springs.
Double seals on the piston head allow for achieving very good tightness. In conjunction with the reinforced, sealed nozzle, which is also included in the set, a significantly better tightness than the one presented by standard part is achieved.
A bearing-mounted, directional piston head has a unique shape that provides quiet operation.
In order to assure correct operation of the set, an M120 or more powerful spring is required.
The set includes:
- cylinder head with an increased diameter and double seal
- piston head with an increased diameter (directional)
- cylinder with increased diameter
- sealed nozzle with increased diameter