Description
The Hiperfire X2S MOD-2 takes the toggle-driven technology that made the brand's single-stage triggers famous and brings it to a true two-stage design. You get a short, user-adjustable first stage that runs 2 to 3 pounds depending on which springs you install, followed by a distinct wall and a light 1.5 pound second stage. Total pull comes in between 3.5 and 4.5 pounds with the included green or red springs. What you feel at the range is a defined take-up, a clean prep point, and a break with no mushy over-travel behind it.
What Sets the X2S MOD-2 Apart
The MOD-2 sits right in the sweet spot of the X2S family. Its first stage is a touch shorter than the MOD-1 for a faster, more fine-tuned prep, while it shares the exact same sear geometry and performance as the flat-faced MOD-3. The difference is the curved trigger bow and standard manganese phosphate coating, which is a great fit if you prefer a traditional trigger shape. If you ever want to change the feel, the curved bow accepts Hiperfire's HIPERSHOE finger pad, sold separately.
Toggle Engineering You Can Trust
Hiperfire's Cam-Over Toggle Engine is the heart of this trigger. It lets the pull weight stay light without giving up hammer strike energy, and the Radical Sear Mechanics let you run heavier hammer springs to help cut down on light primer strikes and add longevity. Soft Start Lock-Up helps settle rifle flinch after the break, which pays off on longer shots. It is a semi drop-in kit made in the USA from mil-grade components, and it fits AR-15, AR-10, and AR-pattern pistol caliber carbines including the SIG MPX.
If you shoot precision, run a DMR build, or just want a noticeably better trigger feel than what came in your lower, the MOD-2 is a smart, adjustable upgrade that holds up to hard use.
Key Specifications
- Manufacturer: Hiperfire
- Manufacturer Part Number: X2SM2
- Model: X2S MOD-2
- UPC: 859177004492
- Trigger Type: Two-Stage, Semi Drop-In
- Trigger Bow: Curved
- First Stage Pull: 2 – 3 lbs (user adjustable, green or red springs)
- Second Stage Pull: 1.5 lbs
- Total Pull Weight: 3.5 – 4.5 lbs
- Finish: Manganese Phosphate
- Color: Black
- Fitment: AR-15 / AR-10 / PCC / SIG MPX
- Pin Size: 0.154 in (small pin)
- Country of Origin: USA
What’s Included
- Hiperfire X2S MOD-2 trigger assembly
- Green and red toggle springs (for pull weight adjustment)
- Hammer and trigger pins
- Installation instructions
Frequently Asked Questions
What is the difference between the X2S MOD-2 and the MOD-1 and MOD-3?
The MOD-2 has a shorter first stage than the MOD-1, giving you a quicker, more fine-tuned prep before the wall. It shares the same sear geometry and performance as the MOD-3, but the MOD-2 has a curved trigger bow with a manganese phosphate finish while the MOD-3 uses a flat bow with a black nitride coating and included HIPERSHOE. If you want a traditional curved trigger feel, the MOD-2 is the one to grab.
Can I adjust the pull weight on the X2S MOD-2?
Yes. The first stage is user adjustable and can be set to roughly 2 or 3 pounds depending on whether you install the included green or red springs. The second stage wall stays at 1.5 pounds, so total pull lands between 3.5 and 4.5 pounds.
What rifles does the X2S MOD-2 fit?
It works with AR-15 and AR-10 pattern rifles as well as AR-style pistol caliber carbines, including the SIG MPX. It is designed for standard small-pin lowers with 0.154 inch pivot pins. Hiperfire recommends installing the supplied pins to get baseline performance rather than aftermarket anti-walk pins.
Is the X2S MOD-2 a true drop-in trigger?
It is a semi drop-in design, meaning it installs as an assembly using the included pins rather than as a fully self-contained cassette. Following the instructions and making sure the components seat correctly gets you the crisp, repeatable feel the trigger is known for. It is a straightforward install for anyone comfortable working inside an AR lower.





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