Atrius Development Forced Reset Selector Black. This Forced Reset Selector (FRS) is compatible with mil-spec AR15 (chambered in .223/5.56/.300 BLK) fire control groups and no modifications required. The Atrius FORCED RESET SELECTOR (Single) isnt just a safety its an advantage. Specifications for Atrius Development Forced Reset Selector: Manufacturer: Atrius Development Color: Black Gun Make: AR Platform Gun Model: AR-15 Fabric/Material: Steel Features of Atrius Development Forced Reset Selector Drop-In Installation Swap out your factory safety in minutes and experience the next level of firearm manipulation (some fitment may be required). Runs with Mil-Spec Fire Control Groups Seamlessly integrates with standard AR fire control groups ensuring flawless function and longevity without modification. Hardcore Durability Crafted from heat-treated 4140 steel and coated in a corrosion-resistant finish the Atrius FRS laughs in the face of wear and tear. Rain mud sweatit eats it all for breakfast. Mechanically Leveraged Design Our Forced Reset Selector (FRS) reduces wear on your rifle preserving your weapons longevity unlike forced-reset triggers (FRTs) that accelerate internal component degradation. Ultra-Smooth Engagement Crisp tactile clicks with no mushy nonsense. Designed for 90-degree throw engagement. Positive Positioning Without Slippage Engineered for rock-solid engagement eliminating the risk of unintentional movement mid-fire keeping you in full control at all times. Aggressive Ergonomics Textured chamfered and purpose-built for speed. Your thumb finds the selector instantly even under stress with no fumbling no hesitationjust pure control. Package Contents: Atrius Development Forced Reset Selector What firearm models does the manufacturer say Atrius Development Forced Reset Selector is compatible with? The manufacturer says that Atrius Development Forced Reset Selector is compatible with AR-15Atrius Development ADG-FRS-S: Forced Reset Selector Black