Forged Lower Receiver

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 insure 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 hole 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, squared 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
• 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 magwell bevel to the limit of a standard forging
• All components, material, and packaging made in the USA
• Fifth Generation

Minimalist Parts Kit option consists of the following components to supplement the included A-DAC parts:

• Pivot Pin, Nitride 
• Pivot Pin Detent, stainless steel, Nitride
• Pivot Pin Spring, 17-7 PH stainless steel
• Takedown Pin, Nitride
• Takedown Pin Detent, stainless steel, Nitride
• Takedown Pin Spring, 17-7 PH stainless steel
• Magazine Catch, Manganese Phosphate
• Buffer Retaining Detent, Nitride
• Buffer Detent Spring, 17-7 PH stainless steel
• Selector Detent, stainless steel, Nitride
• Selector Spring, 17-7 PH stainless steel
• Umbrella Grip 23
• All components, material, and packaging made in the USA

As with all Umbrella products, these kits are made to the finest standards and carry an unconditional guarantee against material defect and manufacturing failure. Assembly by a qualified Armorer is required.

NOTE: Umbrella Corporation only ships firearms and firearm receivers to FFL dealers. Customers may purchase from the website and have their dealer of choice email a copy of their license directly to FFL@ucwrg.com with the customer's name in the subject line (as a matter of policy we DO NOT accept faxed FFLs). When you create your account or check-out, please enter your contact information/shipping address and not your dealer's. There are specific fields now for FFL transfer information and we will only ship your lower to the address of your chosen FFL. Any associated transfer fees assessed by the local dealer are the responsibility of the buyer and not UCWRG. Know the laws of your state or locale: Umbrella will not ship lower receivers to CT, DC, NY, or to restricted cities in CA, IL, MA, or MD. Please contact us directly if you have questions or require clarification.

We do not send out emails to tell you that we have received your dealer’s FFL. That would require hundreds of additional emails on top of those already going out. You will know that we have your dealer’s license when you get the tracking info for your lower receiver. Likewise, if we have an issue or don’t have a FFL from your dealer, we will contact you when we get to that point. And if your dealer is one of those that require a phone call, our license first, or some other such nonsense before they will send us their FFL, please find another dealer.