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The Geissele Super Semi-Automatic, better known as the SSA, is the semi-automatic-only version of Geissele's full-auto Super Select-Fire trigger that's carried by units in the U.S. Special Operations community. That lineage matters. This is not a range toy dressed up in marketing. It's a combat-proven fire control group that happens to shoot like a match trigger, and it's earned its reputation one carbine at a time since Bill Geissele started building them back in 2004.
What you feel when you press it is a smooth, defined first stage that takes up cleanly, then hits a wall and breaks crisp with almost no creep. Geissele lists the first stage around 2.5 to 3 pounds and the second stage around 1.5 to 2 pounds, for a total pull that lands in the 4.25 to 4.75 pound range. That weight is deliberate. It's light enough for precise hits at distance but heavy enough to stay honest under stress, which is exactly why it works so well for duty use, home defense builds, and mid-range carbine work.
The internals are cut from heavy-duty tool steel, and the sear surfaces are shaped by a wire EDM machine rather than a milling cutter. That non-directional finish is where the smoothness comes from, since there are no grinding marks to create the grit you feel in a factory trigger. There are no set screws, no reduced-power springs, and no gimmicks to lose or tune out of spec. The black oxide finish rounds out a package built to shrug off hard use, and Geissele has cycle-tested the design well past what most rifles will ever see.
This is a component-style group, not a single-piece cassette, so it installs the same way a mil-spec trigger does using standard .154-inch pins. It drops into any mil-spec small-pin AR-15 or AR-10 lower and most folks have it running in ten or fifteen minutes with nothing more than a punch. Because the pull weight and sear engagement are non-adjustable from the factory, there's nothing to second-guess once it's in. You pin it, function check it, and go shoot.
Yes. The SSA works in standard mil-spec small-pin AR-15 lowers in 5.56 and .223, and it also drops into .308 AR-10 pattern rifles. It uses standard .154-inch trigger and hammer pins, so it fits any mil-spec stripped lower. It is not designed for large-pin Colt lowers, HK416 rifles with a firing pin safety, or the Sig MPX and MCX platforms.
Not at all. It installs just like a standard mil-spec trigger, meaning you punch out your old pins, drop in the new group, and pin it back together. Most people get it done in around ten to fifteen minutes with a basic punch, and Geissele has a walkthrough video that makes the process simple. Since it's a component group rather than a single cassette, you don't need any special drop-in tricks.
No, the SSA is a non-adjustable trigger by design. The pull weights and sear engagement are set at the factory and land in the 4.25 to 4.75 pound range total. That's actually a selling point for a duty or defensive build, since there are no set screws to back out or springs to lose, and nothing to drift out of spec over time.
Both share the same rugged chassis and two-stage design, but the SSA-E is the lighter, more precision-tuned version with a total pull closer to 3 pounds. The standard SSA sits a bit heavier at around 4.5 pounds, which makes it more forgiving for close-in and dynamic work. If your priority is a rugged do-everything combat trigger, the SSA is the sweet spot; if you want maximum precision for longer shots, look at the SSA-E.
| UPC | 854014005007 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 05-101 |
| Color | AR14/AR10 |
| Length | 5.5500 |
| Model | |
| Product Type | Trigger |
| Style | 2-Stage |
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