AR-15 Atrius Ambi Super Safety Complete Lower Receiver – Performance Build
Take your AR-15 build to the next level with the Atrius Complete Lower Receiver, engineered for shooters who demand durability, precision, reliability, and enhanced ergonomics. Built around a forged 7075-T6 aluminum lower receiver and outfitted with quality performance components, this complete lower is ready to pair with a compatible mil-spec AR-15 upper receiver.
Whether you're assembling a competition rifle, range rifle, training carbine, or general-purpose AR-15, this complete lower provides a solid foundation with upgraded components and comfortable handling right out of the box.
Key Features
Forged 7075-T6 Aluminum Lower Receiver
Precision machined from forged 7075-T6 aluminum for excellent strength, durability, and long-term service life.
Enhanced 3.5 lb Fire Control Group
Features a crisp, clean trigger pull designed to provide consistent trigger control and a refined shooting experience.
Ambidextrous Safety Selector
Provides positive, easy-to-reach operation from either side of the rifle, making it suitable for both right- and left-handed shooters while enhancing overall handling.
Odin Works H-FRB, Heavy Buffer for Forced Reset Triggers
Optimized recoil system that helps reduce felt recoil and improve cycling consistency for smoother operation.
SOPMOD-Style Adjustable Buttstock
The SOPMOD-style stock provides a comfortable cheek weld, adjustable length of pull, and integrated storage compartments for small accessories.
Overmolded Ergonomic Pistol Grip
Rubber-overmolded construction provides a comfortable, secure grip with a textured, non-slip surface for confident handling in a variety of conditions.
Why Choose This Complete Lower?
Forged 7075-T6 mil-spec aluminum construction
Enhanced 3.5 lb fire control group
Ambidextrous safety selector
Odin Works H-FRB, Heavy Buffer
SOPMOD-style adjustable buttstock
Integrated stock storage compartments
Ergonomic overmolded pistol grip
Fully assembled lower receiver
Ready to pair with a compatible AR-15 upper receiver
Ideal Applications
AR-15 custom builds
Competition and recreational shooting
Range and training rifles
General-purpose configurations
Performance-oriented AR-15 builds
*NOTE*
NOTE: Due to the wide variety of AR-platform configurations, the ODIN Works H-FRB Buffer may not function optimally in every firearm with an aftermarket Forced Reset Triggers. Some rifles may require adjustments to the gas system, buffer weight, spring, or other operating components to achieve reliable performance. As with any performance upgrade, proper tuning may be necessary based on your specific firearm configuration and ammunition.
H-FRB (AR-15) should only be used on firearms with barrels over 10"
