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SBA3 MOE Pistol Lower Build Kit



If you need a convenient way to complete your pistol-sized AR, then check this out. Complete the lower half of your AR-15 pistol build the right way with the SBA3 MOE Pistol Lower Build Kit! It comes with the quality SBA3 pistol brace by SB Tactical and an upgraded lower parts kit.

This SBA3 MOE Pistol Lower Build Kit comes with everything you need to finish off the bottom half of your AR pistol. It has an upgraded lower parts kit with a better-than-mil-spec trigger, Magpul MOE grip and trigger guard, and comes with a complete mil-spec 5-position carbine buffer tube assembly and an SB Tactical SBA3 Adjustable Pistol Brace.

SB Tactical SBA3 Pistol Stabilizing AR Brace

As the originator of the Pistol Stabilizing Brace, SB Tactical brilliantly engineers expertly constructed solutions that push every limit. The 5-position SB Tactical SBA3 adjustable pistol brace has a clean design and superior support.

The SB Tactical SBA3 pistol brace is one of the best braces on the market. Created for all AR platforms capable of accepting a mil-spec carbine buffer tube, the SBA3 brace is a 5-position adjustable, pistol-stabilizing AR brace. The SBA3 brace drastically enhances stability and control of the AR by adding a third point of contact.  Simply strap the ATF-compliant pistol brace to your forearm and you'll be hitting targets with your rifle-style pistol in no time. It's also got a minimalist design with an integral, ambidextrous QD sling socket.


  • Minimalist design
  • Made from black polymer
  • 5-position adjustable
  • 7075 MIL-SPEC carbine receiver extension included
  • Ambidextrous QD sling socket
  • ATF compliant, US veteran designed 

Upgraded AR Pistol Lower Parts Kit:

With a Magpul grip & trigger guard, your new AR pistol will be ready for any type of shooting condition, rain or shine. You can even shoot while wearing gloves, thanks to the enlarged MOE trigger guard. The enhanced polished trigger reduces pull weight and is built to last. The trigger is noticeably smoother than mil-spec and a great economical upgrade. This super crisp, single stage, government-style fire control group has had its interacting surfaces polished and is topped off with a silky smooth nickel boron finish.


  • Magpul Grip
  • Magpul Trigger Guard
  • Mil-spec single stage fire control group
  • Black oxide coated hammer and trigger springs
  • Castle nut
  • Latch plate
  • Carbine buffer spring
  • 6 positioning mil-spec buffer tube
  • Standard carbine buffer

Need Help With Installing Parts?

Read our instructional guide for installing the lower parts kit here.

We've got also an instructional video for installing your LPK!

Made in the USA  Lifetime Warranty

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

80LowerJig.com 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.