- CNC Aluminium Construction
- Includes Blowback housing, piston, and O-rings
- For TM based Hi-capa GBB pistols
If you have been researching parts for your latest Hi-capa build you will doubtless have heard of CowCow, a relatively recent arrival on the Airsoft scene, with a growing reputation for producing high quality, precision parts for TM based GBB pistols. The Dynamic Blowback Housing Unit for the TM Hi-capa and its clones includes a CNC machined 7075 aluminium housing which is available in either silver or black anodized finish, 3 rubber O-rings, and a CNC machined piston assembly, anodized in red.
Fast Delivery
Delivery & Postage
Here at Patrol Base we ship worldwide, delivering not only to the UK but to most of the EU and select Worldwide locations as well. We provide a working day-by-road service via our handpicked courier services, simply buy your Airsoft guns with us and we'll have them delivered directly to your door.
For more information and to see the country we deliver please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK Standard
£6.95
Approx.
UK Next Day
£8.95
Approx.
Highlands / Islands
£24.99*
Approx.
Saturday
£14.95
Approx.
* Scottish Highlands, Islands, and EU post prices can vary wildly. Prices range from £8.99 to £29.99, so please ensure you refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be delighted with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
The BO1 Dynamic Blowback housing from CowCow is an essential part for any Hi-capa build with the stated objective of creating the snappiest Hi-capa out there! This Blowback housing is precision machined from 7075 Aluminium using CNC technology (no casting here!), providing an incredibly precise fit whilst also serving to reduce the weight of your pistol when compared to the original parts. As this weight reduction is in the slide, it will also serve to increase the cyclic rate of your pistol, especially if paired with an enhanced recoil spring or buffer spacers.
Included with the housing are 3 rubber O-rings, one of which should be positioned around the head of the piston when installed. The O-rings are of various different sizes, allowing you to fine tune your pistol for optimum efficiency with your chosen nozzle setup and power source. These O-rings are made from oil-resistant rubber, guaranteeing they will not swell over time when exposed to lubricants.
Features
- Lightweight design
- CNC machined from 7075 Aluminium
- Includes 3 different sized O-rings
- Anodised finish - Silver or Black
- Improves gas efficiency and cyclic rate
- Compatible with standard nozzles/BBUs
- Compatible with TM based Hi-capa and 1911 GBB pistols
Package Includes
- CowCow B01 Dynamic Blowback Housing Unit for TM Hi-capa/1911
Specification
General
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Parts & Accessories Type
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Internal Parts
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|---|---|
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Internal Part Type
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Blowback Housing Unit
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Weight and Dimension
 |
Approx. 0.019kg
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|---|
Construction
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Black,
Silver,
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|---|---|
 |
Aluminium with rubber O-rings
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|
Internal Part Construction
|
Aluminium, Rubber,
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Part Specific
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Part for Power Source Type
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Gas
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|---|---|
 |
|
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Package Includes
|
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Size guide
Parts Fitting
Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff.
Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.
We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!
Unique Parts
Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.
Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.
If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.
For more information with fitting parts, or should you require help, feel free to get in touch with our Workshop Department via our Contact Us Page.
Terms and Conditions relating to parts fitting can be read on our Terms and Conditions Page.