M4E1 Alpine Dark ATLAS S-ONE M-LOK Builders Set
Alpine Dark Cerakote by Weapon Works
The Aero Precision M4E1 Alpine Dark ATLAS S-ONE M-LOK Builders Set features a M4E1 stripped lower receiver, M4E1 Threaded Assembled Upper Receiver, and an ATLAS S-ONE M-LOK handguard in your choice of either 9″ or 15″. In addition, we have made available a very limited quantity of Alpine Dark cerakoted Magpul furniture; all custom cerakoted by Weapon Works. The M4E1 Alpine Dark ATLAS S-ONE M-LOK Builders set includes everything you need to begin the assembly of your own unique M4E1 firearm sure to impress your friends.
M4E1 Lower Receiver Features
- 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.
- Integrated Trigger Guard – 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.
- Upper Tension Screw – Allows users to fine tune the fit of the upper and lower receiver 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.
- 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).
- Increased Magwell Flare – Increased the flare of the magwell to aid in quick and efficient magazine changes.
- Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.
Click to see the Magpul Alpine Dark Furniture Options
Save up to $20 on Toolcraft Bolt Carrier Groups and Charging Handles when purchased together.
M4E1 Threaded Assembled Upper Receiver Features
- Enhanced forging to give a “billet look”
- M4 Feedramps
- .250 takedowns
- Includes installed dust cover and forward assist.
ATLAS S-ONE M-LOK Handguard
- Front and rear picatinny rail
- Eliminated center top of rail for weight reduction
- Indexing grooves in 12:00 position for positive grip control
- 1.3″ inside diameter | 1.5″ outside diameter
- Compatible with low profile gas block
Each Builders Set Includes
- Alpine Dark Cerakoted M4E1 Stripped Lower Receiver
- Cerakoted Alpine Dark M4E1 Threaded Assembled Upper Receiver
- Cerakoted Alpine Dark ATLAS S-ONE M-LOK Handguard (9″ or 15″)
- ATLAS S-ONE barrel nut and mounting hardware.
- Toolcraft Bolt Carrier Groups
- Charging Handles
Manufacturer: Aero Precision | Weapon Works
Platform: AR15 – Multi Caliber
Material: 7075-T6 Aluminum (Receivers), 6061-T6 (Handguard)
Finish: Cerakote | Alpine Dark
Handguard Type: ATLAS S-ONE M-LOK
Handguard Length: 9″ | 15″
Screw Torque: 25in-lbs
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