Begadi NPAS for (Army Armament, KJW, WE) HiCapa & 1911 GBB series (CNC, stainless steel) -red-
The Begadi NPAS (Negative Pressure Adjustment System) is used to reduce the energy of GBB weapons.
A side effect is the resulting improved gas efficiency and less pronounced cooldown susceptibility.
Our NPAS valve consists of 3 components:
- Two-piece stainless steel valve with threaded
- PTFE discs to adjust the length and thus the energy
- CNC machined backplate made of 7075 aluminum
The valve in combination with the threaded cap is CNC machined from stainless steel and replaces the original plastic valve in the nozzle.
It can be installed and used on many GBB weapons available on the market.
The included washers (PTFE - 2x 1mm, 1x 1,5mm) are used to adjust the valve.
The more washers are inserted between the valve and the threaded cap, the more the energy decreases.
Compared to other systems with O-ring available on the market, our valve does not adjust even at high energy. Since the length over the PTFE discs always remains identical.
If you want to lower the energy of your gun further or adjust it more finely, it is also possible to use normal shim washers with 4mm inner diameter.
Also included is an optional 7075 aluminum backplate.
This is much more robust than the original plastic part.
If your GBB has a nozzle with steel pin, this backplate can and must not be used. The pin has a much higher durability than an installed plastic backplate.
Our backplates are suitable for (tested):
- Army Armament R-Series (orange)
- WE G-Series (orange)
- KJW KP-13 (orange)
- Army Armament HiCapa Series (R501, R601, TTI) - (red)
- WE HiCapa Series (red)
- Marui HiCapa DOR (red)
For the weapons listed above, we recommend installing the backplate.
If your weapon is compatible with one of the above, the corresponding aluminum backplate can also be installed here.
Scope of delivery:
- Valve with stainless steel threaded cap
- 2x PTFE disc with 1mm (4x7mm)
- 1x PTFE disc with 1,5mm (4x7mm)
- Backplate made of 7075 aluminum
- Screws
- Allen key
Please note that technical knowledge of GBB is required for installation.
Energy examples: (Environment: 23°C, ProTech Balanced Gas, 0.20g BBs)
Army R601 TTI:
Unfortunately, this weapon can only be slightly throttled, but the energy as well as the gas yield still improve.
Bolt Length:
We have noticed that the enclosed screws are about 0.5mm too long on a few models. This can cause the NPAS to stick to the screw.
If this is the case with your weapon, the screw can be shortened or a shorter one installed (M1.2 x 2mm).
A side effect is the resulting improved gas efficiency and less pronounced cooldown susceptibility.
Our NPAS valve consists of 3 components:
- Two-piece stainless steel valve with threaded
- PTFE discs to adjust the length and thus the energy
- CNC machined backplate made of 7075 aluminum
The valve in combination with the threaded cap is CNC machined from stainless steel and replaces the original plastic valve in the nozzle.
It can be installed and used on many GBB weapons available on the market.
The included washers (PTFE - 2x 1mm, 1x 1,5mm) are used to adjust the valve.
The more washers are inserted between the valve and the threaded cap, the more the energy decreases.
Compared to other systems with O-ring available on the market, our valve does not adjust even at high energy. Since the length over the PTFE discs always remains identical.
If you want to lower the energy of your gun further or adjust it more finely, it is also possible to use normal shim washers with 4mm inner diameter.
Also included is an optional 7075 aluminum backplate.
This is much more robust than the original plastic part.
If your GBB has a nozzle with steel pin, this backplate can and must not be used. The pin has a much higher durability than an installed plastic backplate.
Our backplates are suitable for (tested):
- Army Armament R-Series (orange)
- WE G-Series (orange)
- KJW KP-13 (orange)
- Army Armament HiCapa Series (R501, R601, TTI) - (red)
- WE HiCapa Series (red)
- Marui HiCapa DOR (red)
For the weapons listed above, we recommend installing the backplate.
If your weapon is compatible with one of the above, the corresponding aluminum backplate can also be installed here.
Scope of delivery:
- Valve with stainless steel threaded cap
- 2x PTFE disc with 1mm (4x7mm)
- 1x PTFE disc with 1,5mm (4x7mm)
- Backplate made of 7075 aluminum
- Screws
- Allen key
Please note that technical knowledge of GBB is required for installation.
Energy examples: (Environment: 23°C, ProTech Balanced Gas, 0.20g BBs)
| Model: | Minimum: (discs) | Maximum: (without discs) | Backplate: |
| Army Armament R30 GBB | 0,45J. (2,5mm) | 0,95J. | No |
| Army Armament R17 GBB | 0,49J. (2,5mm) | 0,82J. | Yes (orange) |
| Army Armament R501 GBB | 0,48J. (3,5mm) | 0,9J. | Yes (red) |
| Army Armament R601 TTI GBB | 0,88J. (3,5mm) | 1,1J. | Yes (red) |
| Army Armament R60 GBB | 0,57J. (2,5mm) | 1,3J. | No |
| KJW KP05 HiCapa GBB | 0,45J. (2,5mm) | 0,88J. | No |
| KJW KP07 GBB | 0,30J. (2,5mm) | 0,9J. | No |
| KJW KP01 GBB | 0,38J. (3,5mm) | 0,87J. | No |
| KJW M9 A1 GBB | 0,61J. (2,5mm) | 0,9J. | No |
| KJW KP13 GBB | 0,40J. (2,5mm) | 0,8J. | Yes (orange) |
| WE G-Force 17 GBB | 0,45J. (3,5mm) | 0,85J. | Yes (orange) |
| WE HiCapa Force GBB | 0,63J. (3,5mm) | 1,0J. | Yes (red) |
| WE M92 GBB | 0,69J. (2,5mm) | 0,98J. | No |
| Marui HiCapa D.O.R GBB | 0,38J. (3,5mm) | 0,85J. | Yes (red) |
| VFC Glock 19X GBB | 0,42J. (1mm) | 0,75J. | No |
Army R601 TTI:
Unfortunately, this weapon can only be slightly throttled, but the energy as well as the gas yield still improve.
Bolt Length:
We have noticed that the enclosed screws are about 0.5mm too long on a few models. This can cause the NPAS to stick to the screw.
If this is the case with your weapon, the screw can be shortened or a shorter one installed (M1.2 x 2mm).
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