ATRIUS DEVELPMENT GROUP ADG-FRS-AMBI AMBIDEXTROUS FORCED RESET SELECTOR

The Atrius Development Group Ambidextrous Forced Reset Selector (ADG-FRS-AMBI) is a drop-in AR-15 safety selector upgrade compatible with mil-spec platforms chambered in .223 Rem, 5.56 NATO, and .300 BLK that gives competitive shooters, tactical trainers, and serious AR builders full ambidextrous control across three distinct selector positions. This ambidextrous forced reset selector for AR-15 rifles delivers faster trigger engagement and precise fire control for left- and right-handed shooters without altering the existing trigger group.

Key Features

• Part number: ADG-FRS-AMBI
• Compatible calibers: .223 Rem, 5.56 NATO, .300 BLK
• Platform compatibility: Mil-spec AR-15 with full-profile trigger pocket lower receiver
• Selector positions: SAFE, SEMI, SUPER-SEMI (three-position configuration)
• Throw angle: 90 degrees
• Material: Heat-treated 4140 steel
• Finish: Black nitride, corrosion resistant
• Selector type: Ambidextrous, dual lever
• Installation: Drop-in, no fire control group modifications required
• Weight: 0.3 oz
• Includes: Selector, ambidextrous levers, spring, T10 screw
• Buffer recommendation: H2 or H3 buffer for optimal function
• Country of origin: USA

Special Features

• The dual ambidextrous lever design allows full selector manipulation from either side of the receiver, giving left-handed shooters the same positive, unrestricted access that right-handed shooters enjoy with no ergonomic compromise.
• The SUPER-SEMI position uses a mechanically leveraged cam design to force the trigger to reset immediately after each shot, producing faster follow-up fire compared to a standard two-position safety selector.
• Rather than replacing or modifying the existing trigger group, the ADG-FRS-AMBI works through the selector itself, reducing stress on internal fire control components and extending their service life compared to dedicated forced-reset trigger systems.
• The black nitride finish penetrates the steel surface rather than sitting on top of it, providing deep corrosion resistance and surface hardness that holds up under sustained hard use and adverse conditions.
• The 90-degree throw produces crisp, tactile detent engagement at each position, giving the shooter a clear mechanical signal with no mushy or ambiguous transition between SAFE, SEMI, and SUPER-SEMI.
• Comes ready to install with all required hardware included, making this a complete drop-in package straight out of the bag.

Practical Benefits

• The ambidextrous layout means both left- and right-handed shooters on your team or in your household can run the same rifle platform without any additional modifications or parts swaps.
• The drop-in design installs in minutes using the included T10 screw and hardware, making this a fast upgrade for existing mil-spec AR-15 builds across .223, 5.56, and .300 BLK configurations.
• The SUPER-SEMI position performs best in practical shooting competitions, tactical training drills, and high-volume range sessions where faster trigger cycling directly improves split times and engagement speed.
• Works with mil-spec AR-15 fire control groups and is also compatible with Geissele SSA, SSA-E, and G2S triggers, broadening its fit across a wide range of premium trigger installations.
• Pairing this selector with an H2 or H3 buffer optimizes cycle timing and ensures the cam mechanism functions reliably across varied ammunition loads.
• Your AR-15 gains a genuine mechanical upgrade that expands control options for every shooter who picks it up, regardless of dominant hand.

The Atrius Development Group Ambidextrous Forced Reset Selector (ADG-FRS-AMBI) for .223, 5.56, and .300 BLK AR-15 platforms is a capable tool and smart addition for the serious AR builder or competition shooter who demands full ambidextrous control and faster trigger reset in a durable, drop-in package.