DD Custom Arms AR-15 Builder Set Featuring
Aero Precision M4E1 Upper and Lower Receivers,
Lakota Ops ACE Series 15" M-Lok Handguard,
Dust Door, and Forward Assist
Aero Precision M4E1 Threaded Stripped Upper Receiver Anodized Black. The M4E1 Threaded Upper Receiver Features A New Angular Machined Design That Helps It Stand Apart From Standard Mil-Spec Upper Receivers. This Upper Receiver Features The Same Enhanced Body Profile As Our M4E1 Enhanced Upper Receiver But Is Threaded To Accept A Standard AR15 Barrel Nut. It Is Forged From 7075-T6 Aluminum And Precision Machined To Work With All Mil-Spec AR15 Parts.
The M4E1 Lower Receiver Delivers Billet Aesthetics In A Forged Package. This Custom Designed Enhanced Forging Is Machined From 7075-T6 Aluminum And Compatible With All Mil-Spec AR15 Parts. Aside From The Visual Upgrades, This Custom Engineered Design Provides That Challenge Much More Expensive Billet Options, We Have Added Several Functional Features To The Lower Receiver To Simplify The Assembly Process For The At Home Builder.The M4E1 Lower Receiver Has Made Improvements Like The Threaded Bolt Catch Roll Pin - Allows For Simple Installation Of The Bolt Catch And Virtually Eliminates The Chance To Damage The Finish During Installation (Pin Included). 1/16" Hex Key Required For Assembly. It Also Has An Integrated Trigger Guard Which Eliminates The Possibility Of Breaking The Trigger Guard Tabs By Integrating The Trigger Guard Into The Lower, Creating A Stronger More Rigid Platform To Build Upon. This Lower Also Features An Upper Tension Screw Which Enables Users To Fine Tune The Fit Of The Upper And Lower Receiver By Using A Nylon Tipped Tensioning Set Screw Inserted In The Grip Tang Of The Lower Receiver. This Provides A Tight Fit With Any Standard AR15 Upper Receiver. Another Feature Is A Threaded Takedown Pin Detent Recess - Allows User To Easily Install The Takedown Pin Detent And Spring With The Use Of A 4-40 Set Screw (No More Launching Detents Across The Room). One Of The Favorite Features Of the M4E1 Is The Increased Magwell Flare. This Increased The Flare Of The Magwell To Aid In Quick And Efficient Magazine Changes. Finally, The M4E1 Has Marked And Milled To Accept Short-Throw Safety Selectors, But Will Work With Standard Selectors As Well.
This Upper Features A Premium 15" Lakota Ops ACE Series M-Lok Handguard. This Handguard Is Made From The Highest Grade 6061-T6 Aluminum And Is Reinforced With Class 2 Type III Black Hard Anodizing. With M-Lok Cutouts On The Sides, This USA Made Handguard Will Allow You To Mount A Variety Of Accessories.
Specifications: Lower: Aero Precision AR15 M4E1 Lower ReceiverShipping to FFL Dealer Required: Yes Lower Material: 7075-T6 Forged Aluminum Upper: Aero Precision M4E1 Threaded Stripped Upper Receiver Anodized BlackHandguard: Lakota Ops Premium ACE Series 15" M-Lok HandguardForward Assist: DPMS AR-15 Forward Assist AssemblyEjection Port Door: DPMS AR-15 Ejection Port Door, Rod And Spring
Please note: If the listing says "In-Stock" it means we have all of the items in stock. Our assembled upper receivers are made to order, please check this LINK to view our most up to date shipping status.
Important FFL Requirements: This item is a FFL restricted shipping product.
You must arrange shipment of this product to a qualified FFL dealer.
If you would like to have your order process faster, please see our HOW TO: Purchasing Serialized Parts
If you are unsure if we can ship to your FFL, please view our Warranty, Returns, Terms and Conditions to see restrictions.
All Receivers Are Shipped As Long Arms To The State Of California, 21 Years Of Age Required As Well
Serialized products are subject to a non-refundable $4.00 handling fee.