Geissele SD-3G: Super Dynamic 3 Gun AR-15 Trigger
The S3G was developed to combine the SSF combat trigger’s match-grade semi-automatic performance with its smooth single-stage full-automatic feel to make a fast, smooth, and robust trigger ideal for 3 Gun competition shooting.
|1st Stage Weight:||4.0lbs|
|2nd Stage Weight:||N/A|
|Total Pull Weight:||4.0lbs. (3.25lbs. or 4.0lbs depending on spring)|
|Recommended Use:||3 Gun|
All weights are approximates.
|Size||Standard Mil-Spec Pin|
|Trigger Bow Type||Flat|
Please note, our triggers are designed for mil-spec AR15/M4 carbine rifles. Our AR15 triggers are not compatible with the Sig MPX/MCX weapons. The SSA-MPX trigger will be available in 2017. Please call 610-272-2060 for details.
The Geissele Super Dynamic 3 Gun (SD3G) trigger is the flat trigger bow version of the Geissele Super 3 Gun (S3G) trigger.
The distinction between inferior quality and premium AR-15 trigger is undeniable. At MSP, we only offer AR-15 Accessories from the most trusted brands like Geissele. Buy with confidence that we stand behind the product we sell.
Customer Ratings & Reviews
Love, love, love this AR trigger
Like all of the Geissele triggers I've purchased, this sd3g trigger is everything it's advertised to be. Clean, crisp break, and the straight blade looks fantastic. I installed this on an AR-15 with a Vortex Spark II red dot sight, and the it's amazing how quickly I can acquire the target and get off repeated, accurate shots. If you're even thinking about building a gun for fast, clean follow up shots with a great, consistent feel. Stop looking... you've found it!
Best there is.
I am a 3 gunner and didn't start winning matches until I added this trigger to my rifle. The press is not like a long-range rifle, but is easy to get super fast accurate double taps and have total control doing it. There is no finer trigger for 3 gun in my opinion and I've tried several.
A little too crisp
I put this geissele sd3g trigger on my 3 gun TacOps rifle with the lighter of the two springs it came with, and while it was ok during practice, it began intermittently bump firing in a big match while I was shooting gongs at 100 yards. I nearly got a match DQ as a result. I've not had any such issue with any of my drop-in POF or adjustable JP triggers (both of which cost less), so I will probably stick with those for match guns, especially since the POF runs flawlessly in my Limited rifle, and I can't complain about my split times with it even on run 'n gun/hoser stages. If this had not bump fired while I was actively trying not to let it bump (let alone just shooting normally off-hand or braced on a stage prop), I would give it five stars, as it does have a VERY light, crisp break, and a VERY short reset. I will try it with the heavier spring to see if it runs better, but I specifically got this trigger based on its reputation and advertised lower pull weight, and I am not willing to trust a temperamental trigger in my match rifles. I do like the flat trigger, and if it breaks as cleanly and easily with the heavier spring (minus the bump), then my faith may be restored in it. I've also heard the Geissele SSA-E might be better for 3 Gun than this trigger, oddly enough, despite what the name implies. The top shooters are using stuff that's only a wee bit more expensive, and that might be a better choice too. NOTE: the upper and buffer+spring of this rifle functioned without any issues with my Limited lower and the POF trigger, so I am assuming that the bolt carrier, gas block, or other action parts/timing cannot be blamed for this issue.
This AR trigger is amazing!
I have zero complaints on this sd3g trigger assembly, it is just awesome! The trigger comes with two springs, one 4 lb, and one 3 lb, I'm using the 3 lb spring and love it. It pulls and breaks like glass. Also, the install is straightforward with an extra hand to help keep the trigger in the lower while inserting the pins. Well worth the money, you won't regret going with this set up!
Accuracy and Speed
This is the best AR-15 trigger I've ever purchased, and it performs better and more reliably than the trigger that came on my benchrest rifle. I've installed Geissele Trigger sd3g on my Mega MA-TEN in 338 Federal. Everyone who has ever pulled the trigger on my rifle has commented on the pull and reset. I'm now putting this on my other ARs.
Perfect trigger that is truely drop-in
I have Geissele triggers in 2 of my 5 ARs now, upgraded from JP adjustable and JARD. I love this one. Beautiful short, crisp break, quick reset, and you can bang your rifle around all day without ever having to think about the possibility of a misfire. Comparing this Geissele sd3g to other triggers I've used, this comes out on top, so for anyone looking to replace a stock trigger for the first time, this is the best way to go.
Great trigger, great customer service
I mangled the AR trigger spring pretty good because I was in a hurry installing it the first time. It was after midnight Eastern time when I send an email to Geissele to see about getting a new one; got an immediate reply saying they would send me one free of charge. Installation went fine the second time. My trigger is 3.25 pounds and smooth with a rapid reset. I had to get out my trigger gauge to check it because it seemed so light. It still seems more luminous than a match 3-pound two-stage trigger I have. It is much quicker shooting doubles and transitioning than the factory or match triggers I have. I plan on adding this trigger to more of my ARs.
Perfect is an understatement....
The geissele sd3g trigger is far above and beyond just a functional quality piece. Giessele hit this one out of the park. 2 and 3 shot strings are effortless, and with a little practice, a near full-auto rate of fire can be achieved. The pull is very short, and light and the reset is mere thousandths of an inch before the break. There is a "sweet spot," and once you find it, prepare to go through some ammo quickly. The minimal movement required to fire rapidly allows the user to stay on target. I have put 30 shots in the fatal zone of a 25 yard .mil silhouette at 75 feet in a matter of a few seconds. This piece is incredible. It even makes me look 'high speed' ;) I was skeptical of the nearly flat trigger bow at first, but after the first few shots, I understood and prefer the 'flat' bow to a curved one now. I need a few more of these now.
It’s a Geissele, what else needs to be said?
Running the lighter spring and it was Love at the first press of the trigger. Super fast follow up shots, and it’s just a fantastic trigger. This is my third Geissele trigger. I have started with the G2 then the SSA and now SD3G. Have just over 3k rounds with it and not a single issue. My only problem is now I want the super single stage and the tricon, and I promised my fiancé I was done building two guns ago!! Thanks, Geissele for probably ending my engagement. Seriously, I have zero self-control with your products and just ordered my 4th rail today, and will decide which of the previously mentioned triggers is next! My one comfort is I know your products will be with me for my lifetime.