M4 HPA Ultra Trigger – Blade Red

Speed Airsoft

Improving on the original M4 HPA Tunable Trigger from 2015, the new M4 HPA Ultra Trigger comes with even more features built in, all while maintaining heritage through a more refined version of the original iconic design. An important next step for SPEED Airsoft, in order to keep up with the ever changing pace of speedsoft and milspeed in 2025.

Pre and Post Travel
Set screws for external pre-travel and post-travel adjustment are retained in this new design.
Carried over from the M4 HPA Tuneable Trigger in 2015.

Dual Ball Bearing
Two ball bearings are placed side by side across the width of the trigger to smoothen out its rotational axis. No matter the gearbox or tolerance, this setup ensures consistent pulls.
Dual ball bearings were first introduced in SPEED HiCapa Triggers from 2018.​

Safety Mode Support
The top of the trigger keeps its shape unchanged to stay field compliant by allowing the safety to be engaged.
This complements the rake adjustment for shorter pulls without sacrificing functionality.

Rake Adjustment
Another set screw is present at the top of the trigger. The top extends back to hold the rake adjuster, which is also the actuation rod for the microswitch of the trigger board.

Custom Spring
The spring is perfectly balanced between a soft pull and a snappy reset to make every shot fast without fatigue.
Another great feature from the M4 HPA Tuneable Trigger in 2015.

Ergonomic Design
A shallow groove is sculpted into the flat of the trigger to provide a tactile feel and prevent slippage.
This shape along with the rake adjustment makes this trigger the most ergonomic for intense gameplay.

Weight Reduction Holes
Aesthetically pleasing holes are sculpted into the trigger to reduce its overall weight for quicker resets and lighter pulls.
These holes reflect the iconic design started by the release of our M4 AEG Tuneable Trigger back in 2011.

Includes:
SPEED M4 HPA Ultra Trigger (1)
Trigger Spring (1)
M1.5 Hex Key (1)
Instructions (1)

One Year Limited Warranty

Supports TM compatible V2 HPA converted gearboxes. Does not fit Fusion Engine. Do not use on Kythera or any other mechanical engines.