AR15 Lower Receiver with Kit Installed
  • AR15 Lower Receiver with Kit Installed
    AR15 Lower Receiver with Kit Installed
  • AR15 Lower Receiver with Kit Installed
    AR15 Lower Receiver with Kit Installed
  • AR15 Lower Receiver with Kit Installed
    AR15 Lower Receiver with Kit Installed

AR15 Lower Receiver with Kit Installed


This is an FFL item. Please read our Terms and Conditions


This is a controlled item and requires shipping to an authorized and valid Federal Firearms License (FFL) holder.

If you have a copy of the FFL, please email it to

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.

Please Note: All items in this order will be shipped together. If you have non-FFL items on this order that you would like shipped directly to you, please place them on a separate order.

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 or 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.

Out of Stock


Made to mil-spec standards, our lower receiver with kit installed allows for an aftermarket buttstock to be installed. The buffer retainer, buffer retainer spring, takedown pin, takedown pin spring and detent are included with this lower.

Federal law requires this product to be transferred through a licensed FFL dealer. Stag Arms requires a copy of the dealer’s FFL for verification. It’s the customer’s responsibility to notify the dealer of the order.


Lower Receiver Material: 7075 T6 aluminum with a type 3 hard coat anodizing

Hammer/Trigger pin size: Mil-spec small pin .154"

Pivot/Takedown Pin Size: Mil-spec small pin - .250"

Buttstock: None

Buffer: None

Trigger: Mil-spec single stage trigger with a non-adjustable 5-8 pound trigger pull

Grip: A2 style plastic grip

SKU: STAG300738


Q: What is the warranty coverage for this lower?

A: The lower has a one year warranty.

Q: Is this lower compatible with other company's uppers or different caliber uppers?

A: As long as the upper will function on a mil-spec lower, it will be compatible.  There are approximately 20 different calibers which are compatible with mil-spec lowers, including our 6.8SPC versions.

Q: Does Stag Arms provide instructions on how to install a buttstock?

A: We do not offer instructions on how to install a buttstock or work on a lower receiver. We recommend that any modifications or installations be performed by a qualified gunsmith to prevent any damage.


Reviews (2)

Joey-O 14th May 2020

AR-15 Lower

Was keeping my eye open for a lower and at this price point and knowing the quality of Stag Arms it was a steal. I literally couldn't have bought the stripped lower and the parts kit for less. So it saved me the time to build it.

Kalyn 3rd Aug 2017

Assembled lower receiver

Great receiver at a very good price and a great time saver