Gen 5 Forged A-DAC Lower Receiver

DISCONTINUED

While our forged lower receivers exhibit a very high level of fit and finish, it’s simply not just the quality of the machining that separates Umbrella lowers from the rest. We are meticulous with our inspection protocol to ensure every receiver shipped represents premium manufacturing synonymous with the brand. We’ve added a simple chamfer to the grip interface for easy installation of even the most stubborn designs. Unlike many forged lowers, our magwell bevel is extreme for faster reloads. For this latest generation we’ve gone to a precision machined logo and used the time saved to incorporate Radian’s excellent A-DAC bolt catch feature as previously seen on our billet lowers. We’ve added an upper/lower tension screw to mitigate interface play, and we’ve included a small notch to accommodate the Battle Arms Development short throw ambidextrous selectors. And our small umbrellas return at the full auto selector position. The excellence is in the details. Umbrella Corporation AR-15 forged lower receivers are made to the finest standards and carry an unconditional guarantee against material defect and manufacturing failure. Assembly by a qualified Armorer is required.

Specifications:

• Precision machined from Aerospace 7075 Aluminum Alloy forging, T6 Temper
• Certified MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal
• TDP/Mil standard take down and fire control pin dimensions
• A-DAC patent pending technology engages bolt catch by pressing magazine button (not a bolt release)
• Includes A-DAC specific parts: bolt catch, mag button, mag catch spring, and actuator pin
• Includes supplemental mil-spec parts: bolt catch plunger, plunger spring, bolt catch roll pin
• Chamfered interface for ease of aftermarket grip installation (patent pending)
• Machined relief cut supports Battle Arms Development 45° short throw ambidextrous selectors
• Precision broached magazine well
• Kaiser chemical composition certifications for the 7075 Aluminum
• Post machining operational reports
• Anodizing QC certificates of compliance
• Dimensional accuracy inspection
• Sharp edges meticulously de-burred by hand
• Inert ceramic media blast for uniform finish
• Archaic selector stops machined away
• Pictograph selector markings w/full auto umbrella
• No caliber specification for build versatility
• AR-15 classic model designation
• Text and logo precision CNC machined prior to anodize
• Deep magazine well bevel to the limit of a standard forging
• All components, material, and packaging made in the USA
• Fifth Generation