CNC Machined Aluminium AOE Adjustable Airbrake Piston Head

Code: AEG-004

CNC Machined Aluminium AOE Adjustable Airbrake Piston Head – A  high quality, lightweight piston head for standard V2/V3 AEG gearboxes featuring the proven LPE AOE (angle of engagement) adjustment design, this allows for 0 – 5mm of adjustment to be precisely and easily made using LPE AOE shims while keeping the piston head centred on the piston.

The piston head body is machined from aluminium with excess material removed to minimise weight and  a full radius o-ring groove to spread the impact force and maximise durability, a seperate slimmed down aluminium core and non-bearing type bushing help to maximise durability while keeping the overall weight down. For springs over M120 an aluminium piston head is recommended.

All machined parts are fully CNC machined from solid bar in the United Kingdom by Lees Precision Engineering.

What is an airbrake piston head & how does it work?

Airbrake piston heads are much like standard piston heads but with the addition of a second 'piston' on the front, towards the end of the forward piston stroke the front of the piston head enters the cylinder head and reduces the airflow out of the nozzle, this creates a cushion of air in-front of the piston which slows it down before it impacts the cylinder head resulting in a reduction of sound from the gearbox.

As is often the case with AEGs performance of airbrake piston heads will vary from gearbox to gearbox, the type of cylinder head will have an effect on the braking, flat cylinder heads are recommended to give maximum sound reduction, aero cylinder heads (also known as 'silent' cylinder heads) will also work but the reduction will be lower, these will not work in gearboxes with an off-centre nozzle.

While these airbrakes have been designed to work in full auto they may not be suitable for very high rates of fire, in all gearboxes the removal of the second piston tooth and lowering of the third is highly recommended.

Features

Lightweight hollow piston head body with full radius o-ring groove
Lightweight aluminium core & non-bearing type bushing
9 Ports to improve the airseal
Easy and precise AOE adjustment using LPE AOE shims

Technical Specification

Material : 6000 Series aircraft grade aluminium body, core and bushing
Screw Type : A2 Stainless Steel with Torx T10 head
Weight : 8g

Please note that a Torx T10 screwdriver will be required for installation, a small drop of medium strength threadlocker should be applied to the screw to prevent loosening during use.


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Add : Machined Piston Head AOE Shims (Pack of 8): £3.00 Add : Long Arm L-Shape Torx T10 Key (Made in USA): £2.40

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