$167.00
3 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The Stern Defense H2S is a hybrid two-stage drop-in trigger built to land right between an old-school mil-spec group and a race-ready competition unit. It was developed with pistol caliber carbine and defensive setups in mind, which is exactly where a lot of drop-in triggers tend to stumble. PCC bolts carry a lot of reciprocating mass, and the H2S is designed to handle that drag and stress without the bump fires or reset gremlins that plague lighter triggers in that world.
This particular version wears a nickel boron coating on the trigger, hammer, and disconnect, giving it that slick green finish and a smooth, low-friction feel out of the box. The internals are no joke either: the trigger and disconnect are machined from A2 tool steel, and the hammer is cut from S7 shock-resistant steel, all housed in a billet aluminum cassette. Stern ran this design through a 250,000+ round torture test without failure, so it is built to keep working long after the novelty wears off.
Out of the box it gives you a smooth 2 lb first stage that rolls into a positive 4 lb second stage, finishing with a clean break and a predictable reset. That defined wall makes it easy to stage your shot for precision work, whether you are running a PCC on a drum or reaching out with a rifle-caliber build. It drops straight into your lower and replaces your existing trigger with no gunsmithing needed, so first-time builders and seasoned hands alike can get it running quickly.
The H2S ships with a duty spring pre-installed, which is the one you want for pistol caliber carbines because of that heavier reciprocating mass. If you are running a rifle caliber and want a lighter, more defined break, Stern includes a 3 lb green spring and instructions to swap it in. That gives you a solid wall and a light let-off that fits precision or competition rifle work.
Yes. The H2S is designed as a direct drop-in replacement for standard mil-spec AR-15 and AR-10 lowers using standard .154 pins. It installs without gunsmithing, so it works across a wide range of AR-platform builds.
The duty spring comes pre-installed and gives you a 4 lb second stage. It is the one Stern recommends for pistol caliber carbines because of the heavier reciprocating mass in those guns. The included 3 lb green spring is meant for rifle-caliber builds when you want a lighter, more defined break, and swapping it in follows the included instructions.
It is a true hybrid two-stage. You get a smooth 2 lb first stage that rolls into a positive second stage wall before a crisp break and predictable reset. That defined wall is what makes staging shots for precision work easier.
PCC bolts carry a lot of reciprocating mass, which causes drag as the bolt rides over the hammer and can lead to bump fires or failure to reset with lighter drop-in triggers. The H2S was built specifically to handle that with its duty spring and rounded geometry. It has also been torture tested past 250,000 rounds without failure.
| UPC | 850001176231 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 009H2SNIBD1M |
| Model |
You must be logged in to post a review.
Reviews
There are no reviews yet.