The Geissele Hi-Speed Match Universal is a fully adjustable two-stage match trigger for AR-15 and M4 pattern rifles, fitting Mil-Spec lower receivers that use .154 in trigger and hammer pins.
The Geissele Hi-Speed Match Universal (05-181) is the adjustable flagship of the line: a true two-stage match trigger whose first-stage weight, second-stage weight, sear engagement and overtravel can each be tuned to your discipline and preference. The Universal configuration is the versatile center of the Hi-Speed family — equally at home in service rifle, precision and long-range match builds.
Adjustability at this level demands Geissele's machining, and gets it: hardened, precision-ground components hold your settings shot after shot, and the pull quality across the adjustment range stays glassy. This is the trigger for shooters who know exactly what they want a break to feel like.
Key Features
- Fully tunable two-stage — stage weights, sear engagement, overtravel
- Universal match configuration — versatile across disciplines
- Precision-ground internals — settings that hold, a pull that lasts
- Geissele match pedigree — built to the same standard as the rest of the Geissele match line
Compatibility & Fitment
Drop-in fit for AR-15/M4 pattern lower receivers with Mil-Spec .154 in trigger and hammer pins. Large-pin receivers are not compatible — confirm your pin size before ordering. Set-up rewards patience: tune at the bench one adjustment at a time with the rifle unloaded, verify sear engagement and safety function, then confirm on the score sheet.
Technical Specifications
Platform | AR-15 / M4 |
Fits | Mil-Spec lower receivers with .154 in trigger and hammer pins |
Type | Two-stage adjustable match trigger |
Adjustment | First-stage weight, second-stage weight, sear engagement, overtravel |
Made in | USA |
Brand | Geissele Automatics |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
Which lowers does the Hi-Speed Match fit?
It is a drop-in fit for AR-15/M4 pattern lower receivers using mil-spec trigger pins. Some receivers use large-pin or otherwise non-standard holes, so confirm your pin size before ordering. If your lower is an unusual pattern, contact us with the make and model and we'll check.
What does the Hi-Speed offer that the fixed Geissele triggers do not?
This is Geissele's fully adjustable two-stage match trigger: pull weight, sear engagement and overtravel can all be tuned rather than being set at the factory. That makes it the one to choose if you want to dial the trigger to a discipline or to your own preference over time. Fixed-weight models such as the SSA family are simpler and need no setting up.
How should I approach the adjustments?
Work one adjustment at a time, in small increments, and function-check the rifle thoroughly after every change, including safety and hammer-follow checks with the bolt cycled by hand. Only adjust with the rifle unloaded and the magazine out. If you are not confident carrying out those checks, have a gunsmith set it up for you.
Is this the right choice for me, or would a fixed trigger do?
If you compete or shoot precision and want to fine-tune the break, the adjustability earns its keep; for a general-purpose carbine, a set two-stage is usually easier to live with. Nothing extra is needed to install beyond your existing trigger pins if they are in good condition.
