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MOE+® EPT SBA3 Lower Build KIt

Usually ships the same day or the next business day!

If you're building an AR-15 in pistol configuration, we can help you complete the lower half of your rifle while keeping you legal at the same time. To help with this, we've assembled this MOE+® EPT SBA3 Lower Build Kit. It comes with everything you need to finish the lower half of your AR pistol. We start with the fan favorite Magpul® MOE+® grip and MOE® trigger guard, but that's not all. It also comes with a lower parts kit whose trigger and hammer have been coated in nickel-boron for better and smoother performance and a full butt assembly which includes the buffer, buffer tube, buffer spring, latch plate, and castle nut. To round out this kit, we threw in the SBA3 pistol brace by SB Tactical. See below for more info.

Note: Due to ATF rule 2021R-08F, any pistol with a stabilizing brace is considered a short-barreled rifle (SBR), and is therefore considered a National Firearms Act item requiring a federal tax stamp.

What's Included:

  • Magpul® MOE+® grip
  • Magpul® MOE® trigger guard
  • Lower parts kit with nickel boron coated trigger and hammer
  • Buffer tube assembly
  • SBA3 pistol brace by SB Tactical

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to:

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily. only ships within the United States. Federal legislation dictates we cannot ship our products internationally.


We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.