G&P HPA M4 Jack
The receiver is completely made of aluminum – it is characteristic for an excellent quality of the parts. The handguard with MOTS markings is also made of aluminum. The innovative MOTS 13 Zoll Keymod MRE allows the inclusion of tactical accessories such as optics, pocket lamps, lasers, etc.
At the heart of the M4 HPA AirSoft is a HPA JACK engine from Polarstar . The engine offers the possibility of muzzle velocity adjustment programmable via the FCU (Fire Control Unit). The HPA JACK engine can be customized with the FCU unit and HPA system pressure control (40-130 PSI) to suit individual needs.
Also programmable are: fps, Burst Mode and the RoF (Rate of Fire).
It is interesting that a standard AEG Hop-Up chamber is used for the HPA JACK .
The HPA JACK engine puts an end to it: burnt engines, worn gears, burned or damaged batteries, pistons, and especially broken gears.
The system presented by G & P is very convenient, as external HPA tanks are superfluous and no hoses protrude from the M4 replica.
The M4 Jack HPA AirSoft is powered by an HPA tank that mounts to a thread on the back of the receiver. (this is not included in the set).
Furthermore, a 7.4V LiPo is necessary for the operation of the M4 Jack HPA . (see accessories)
The set includes:
– M4 Jack HPA AirSoft
– M4 Mid-Cap Magazine 120 BB
– front handle
– RIS rails
– QD tactical belt adapter
- Lightweight TüV certified aluminum cylinder
- Standard 3000 PSI fill capacity
- Reliable regulator with pressure gauge
- Both high and low pressure rupture disks installed for the highest level of safety
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