This is a controlled item and requires shipping to an authorized and valid Federal Firearms License (FFL) holder. All items placed on order with this item will be shipped together to the FFL. If you are ordering non-FFL items that you would like shipped directly to you, please place them on a separate order.
If you do not have a copy of the FFL but you do have the dealer's email address, please add it in the comments field at checkout. It may help us acquire a copy of the FFL and get your order shipped out more quickly.
When selecting an Authorized Dealer online, you are agreeing to contact the dealer and arrange for them to complete the transfer process. Failure to do so will prolong the retrieval of your item.
There will be a 30% restocking fee for all controlled items returned due to a failed background check or a denied underage purchase.
Federal law requires that you be 21 years of age or older to purchase a stripped receiver or frame. If a frame or receiver can only be made into a long gun (rifle or shotgun), it is still a frame or receiver not a handgun or long gun. However, they still are "firearms" by definition, and subject to the same GCA limitations as any other firearms. See Section 921(a)(3)(b). 18 U.S.C. Section 922(b)(1) makes it unlawful for a licensee to sell any firearm other than a shotgun or rifle to any person under the age of 21.
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 features that challenge much more expensive billet options and simplify the assembly process for the at-home builder.
M4E1 Lower Receiver Improvements:
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.
Includes:
Stripped M4E1 Lower Receiver
Nylon tipped tensioning set screw
Threaded Bolt Catch Pin
1 Milled & Marked
For standard and short throw safety selectors
2 Threaded Bolt Catch
Eliminates the chance to mar your receivers finish when installing your bolt catch
3 Flared Magwell
Aids in quick and efficient magazine changes
4 Integrated Trigger Guard
Streamlining the assembly process and providing a more rugged platform
5 Upper Tension Set Screw
Allows users to fine tune the fit between upper and lower receivers
6 Threaded Takedown Pin Detent Channel
Eases receiver extension installation by capturing the spring detent with a 4-40 set screw
Shipping to FFL Dealer Required
Yes
Made In America?
Yes
FFL SOT Shipping Required
No
Platform
AR15
Material
Machined from 7075-T6 forged aluminum
Finish
Anodized Black
Markings
"Cal Multi", "M4-" Serial Number Designation
Compatibility
Works with standard AR15 components and magazines
Weight(s)
8.61 oz
Other
Rear takedown pin detent hole is threaded for a 4-40 set screw. Threaded Bolt Catch Roll Pin (Included).
