Description
The Atrius Development Group G-Lever takes a smarter route to forced reset performance. Instead of replacing your whole trigger, it swaps out your factory safety selector and gives you three distinct positions: SAFE, SEMI for traditional single shots, and SUPER-SEMI for rapid, assisted trigger reset. That means faster follow-up shots and a whole new feel behind the trigger, all while keeping the fire control group you already trust in place.
What sets the G-Lever apart from the rest of the Atrius lineup is its Geissele compatibility. This is the only Atrius FRS built to work with select Geissele triggers featuring a reduced hammer design, specifically the SSA, SSA-E, and G2S. Worth noting up front: the Geissele X Series is not compatible. It also runs with mil-spec and full-profile AR-15 fire control groups chambered in .223, 5.56, and .300 Blackout with no cutting or trigger modification required.
What Makes the G-Lever Different
The G-Lever ships with an aluminum lever blocker that's black nitrided to fight wear and corrosion. Its job is to keep the cam lever from over-rotating beneath the hammer, which keeps everything running clean shot after shot. The selector body itself is machined from heat-treated 4140 steel with a corrosion-resistant finish, so rain, mud, and sweat aren't going to slow it down.
Running the G-Lever on Your AR-15
Installation is a drop-in job that most folks knock out in a few minutes with basic tools, though some minor fitment can be part of the process. A T10 Torx bit and a dab of blue Loctite on the selector screw are the way to go. For the best results you'll want a low-shelf or full-auto pocket lower and a properly weighted buffer setup. Getting your buffer weight dialed in is the difference between smooth cycling and a bit of tinkering, so it pays to function test carefully after reassembly.
Because the mechanically leveraged design puts less stress on your rifle's internals than a traditional forced reset trigger, the G-Lever gives you that rapid semi feel without accelerating wear on your components. It's a solid pick for anyone who wants to keep their existing trigger and still step up their manipulation game.
Key Specifications
- Manufacturer: Atrius Development Group
- Manufacturer Part Number: ADG-FRS-AMBI-G
- UPC: 850079014022
- Type: Ambidextrous Forced Reset Selector (FRS)
- Positions: 3-Position: SAFE, SEMI, SUPER-SEMI
- Selector Throw: 90 degrees
- Material: Heat-treated 4140 steel
- Finish: Corrosion-resistant black nitride
- Lever Blocker: Aluminum, black nitrided
- Platform Compatibility: Mil-spec / full-profile AR-15
- Caliber Compatibility: .223 / 5.56 / .300 BLK
- Trigger Compatibility: Mil-spec FCG plus Geissele SSA, SSA-E, G2S
- Installation: Drop-in (some fitment may be required)
- Country of Origin: Made in the USA
What’s Included
- Atrius G-Lever ambidextrous forced reset selector
- Aluminum lever blocker
- Selector hardware
- Installation instructions
Frequently Asked Questions
Which triggers does the Atrius G-Lever work with?
The G-Lever runs with standard mil-spec and full-profile AR-15 fire control groups chambered in .223, 5.56, and .300 Blackout. What makes it special is its compatibility with select Geissele triggers, specifically the SSA, SSA-E, and G2S. The Geissele X Series is not compatible, so check your exact trigger before ordering.
How does the G-Lever differ from a forced reset trigger?
Rather than replacing your trigger, the G-Lever swaps out your safety selector and adds a SUPER-SEMI mode that quickly resets the trigger for you. Its mechanically leveraged design puts less stress on your rifle's internals than a traditional FRT, which helps preserve your components. You also get to keep the trigger group you already like.
Is the G-Lever hard to install?
It's a drop-in swap that most people complete in a few minutes with basic tools, though some minor fitment can be part of the job. A T10 Torx bit and blue Loctite on the selector screw are recommended. For best cycling you'll want a low-shelf or full-auto pocket lower and a properly weighted buffer, and always run a function test after reassembly.
What's the lever blocker for on the Atrius G-Lever?
The aluminum lever blocker keeps the cam lever from over-rotating beneath the trigger group's hammer during operation. It's black nitrided to resist wear and corrosion over the long haul. This detail helps the G-Lever run consistently shot after shot.





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