Geissele SD-3G: Super Dynamic 3 Gun AR-15 Trigger

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Ratings Snapshot

5.0

out of 5

5 (9)

4 (0)

3 (0)

2 (0)

1 (0)

Would recommend this product.

100%

SKU: 220-G-05166
UPC: 854014005076
MFG#: 05-166

The SD3G trigger is the BEST AR platform trigger I have ever used. I was issued and trained with a Colt Commando w/ M203 40mm attached as a Medic in the service. Also a few different specialty SBR for CQB when needed. All of the different firearms I have used and practiced with all had SF mil spec triggers. Is was not until I retired from the service did firearms become a hobby for shooting competitively, collecting, plinking, etc.. I remember the feeling of shooting my BCM 300 Blackout AAC w/ 9"barrel for the first time after removing the mil spec trigger with a Geissele SD3G Trigger dropped in. OMG. All I could think about was how much better a shot I would of been when I was involved in firefights. With out a doubt this trigger and most of all the Geissele triggers are 25 times better then anything on the market today. I could go on and on about how they break and pull lbs etc. Just purchase one and you will never want to use any other trigger again. I PROMISE.

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!

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.

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!

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.

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.

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.

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.

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.