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Questions & Answers
Whats the difference between the regular one and Tactical Tritium aperture? Expert Answer

The Tritium A2 aperture adds two tritium dots to the aperture for reference to the front post in low light situations. Here's a link to the manufacturer's page for reference.

https://www.gggaz.com/a2-spring-actuated-back-up-iron-sight-buis.html

by Kurt Colbourne, Gear Expert, July 23, 2021
Customer Reviews
Helpful Positive Review Quality and durability by IlliniFuzz, October 25, 2019
I purchased these because I was not thrilled with my MBUS pro offset sights. Those were not quick to flip up, and my front sight would fold down if I bumped it on cover/ground/clothing. I like how these flip up automatically and lock into place. Sigh...
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1/1 found this helpful
Most Recent Reviews GG&G flip up sight by dl, Verified Owner, March 12, 2024
I had orders a different brand of sights for my AR platform. They did NOT lock in place solidly, and were very difficult to manipulate to the upward position! I retrieved them and ordered these! The Trijicon tritium is visible but not distraction and...
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Most Recent Reviews Rock solid by Joe, February 25, 2022
Absolutely rock solid sight. Bought this with the matching front sight, and they have both performed flawlessly. Firm adjustments, super fast flip up, and unmovable in the up position until the button is pushed. The cost might be a little much for so...
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Most Recent Reviews GGG Rear Flip up by Scott, March 18, 2017
I love my GGG spring actuated bus. It looks great and is made solid. It mounted easily and painlessly. The tritium was a nice addition and works great with my Meprolight front post. You can't go wrong with this sight.
0/1 found this helpful
Most Recent Reviews Very durable well-constructed, just set a little higher than Magpul . won't fit many scopes by John D, May 2, 2019
If you're looking for a very solid and durable back up iron sight that will hold and repeat zero even after removal and reinstallation this is a great option but it's it's high enough that it will bump into and not fit under many types of scopes. The...
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0/1 found this helpful
Most Recent Reviews Excellent product! by VaRaider, October 20, 2014
This BUS was used for my very first build and needles to say its top notch. Even my friend who helped me do it was a little struck by it too. High quality and easily deployed and closed. Comes true on delivery (at least for me). Next build I'm going ...
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Read All 8 Reviews
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Product Info for GG&G Spring Actuated A2 Top Mounted Deployable Iron Sight

The GG&G A2 AR 15 Spring Flip-Up Rear Sight is one of the best-selling Back Up Iron Sights (BUIS) on the market today! Many operators have been craving a GG&G A2 BUIS Rear Flip Sight that would deploy with just a push of a button, and now GG&G Tactical has fulfilled that wish. The unique and proprietary design of the spring site mechanism allows the actuator spring and mechanical components to be captivated, so the mechanisms are not open to the elements. The GG&G Flip Up Sight not only springs into an on target position with just the push of the actuator button, but it also locks solidly into the upright on target position. Another push of the button and the lock is released allowing you to set the spring sight into the locked down position. This totally eliminates the possibility of accidentally lowering the A2 flip sight. The sights are equipped with the GGG tactile grip windage knob, so adjustments are easy and precise. These iron sights provide the operator with an easy-to-install and easy-to-operate low-profile BUIS that's ready to go when you need it.image

The GG&G A2 Spring Actuated BUIS Sight provides the operator with an easy-to-install push button operated AR 15 flip up sight. The GGG Spring Actuated A2 BUIS can be used as a stand-alone sight or in conjunction with a GG&G Rail. It can also be used as a co-witness iron sight with most red dot sighting systems. Weighing in at just over 2.4 ounces, this flip sight features the standard military A2-style double peep aperture which allows for end user known point of impact. The GGG AR15 Flip Up Rear Sight has full windage adjustment with standard military windage knob and windage screw - meaning there's no need to retrain. One click of the windage knob provides approximately 0.48 MOA change when mounted on the M16A2E4 rifle and about 0.65 MOA on the AC carbine. Initial zero is set by adjusting the weapons front sight post. It is low profile so that when in the down position, it will clear most optics. The mount body and sight stem are manufactured from solid billet 6061 T6 aluminum alloy and Type III hard coat anodized in a non-reflective black mil-spec finish to provide combat durability. All steel components are black manganese phosphated per mil-spec.

Available options for the GG&G Folding Spring Rear Sight include the XS same plane aperture, or GG&G Tactical Tritium aperture. Except for these optional apertures, all components are standard M16A2 sight components.

WARNING: California`s Proposition 65

Specifications for GG&G Spring Actuated A2 Top Mounted Deployable Iron Sight:

Manufacturer: GG&G
Color: Black
Condition: New
Sight Mounting Orientation: Top Mounted
Sight Position: Rear
Gun Model: AR-15
Gun Make: AR Platform
Front Sight Color: REAR SIGHT ONLY
Rear Sight Color: Black
Deployable: Yes
Fabric/Material: 6061 T6 Aluminum Alloy
Illumination Type: Non-Illuminated, Tritium
Gun Type: Rifle
Illumination Color: None
Hand: Ambidextrous
Finish: Anodized
Mount Type: Picatinny
Country of Origin: USA

Features of GGG BUIS Flip-Up Backup Sights:

  • Spring-assisted locking detent button;
  • Countersunk cross bolt;
  • Tactile Ergonomic Windage knob;
  • Available with optional Trijicon tritium aperture or XS Same-Plan Aperture

Package Contents:

  • GG&G A2 Spring-Actuated Flip-Up Back Up Iron Sight

GG&G Spring Actuated A2 Top Mounted Deployable Iron Sight Orderable Models

List of Orderable Models

GG&G Spring Actuated A2 Top Mounted Deployable Rear Sight w/Trijicon Tritium A2 Aperture, Black, GGG-1005SAT , MPN: GGG-1005SAT , UPC: 813157000058 , Code: 2G-IRN-SPRNGACT-GGG-1005SAT
GG&G Spring Actuated A2 Top Mounted Deployable Rear Sight, Black, GGG-1005SA , MPN: GGG-1005SA , UPC: 813157000041 , Code: 2G-IRN-SPRNGACT-GGG-1005SA

GG&G Spring Actuated A2 Top Mounted Deployable Iron Sight Unavailable & Discontinued Models

List of Unorderable Models

GG&G Spring Actuated A2 Top Mounted Deployable Iron Sight w/XS Same Plane A2 Aperture, Black, GGG-1005SAXS , MPN: GGG-1005SAXS , UPC: 813157000065 , Code: 2G-IRN-SPRNGACT-GGG-1005SAXS
USED GG&G Spring Actuated A2 Top Mounted Deployable Rear Sight w/Trijicon Tritium A2 Aperture, Black, GGG-1005SAT, EDEMO1, Used, Condition Fair , MPN: GGG-1005SAT-EDEMO1 , Code: 2G-IRN-SPRNGACT-GGG-1005SAT-EDEMO1
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