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PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit

$189.99
SKU:
5165449480
Availability:
In stock! Ships next business day!
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Why waste time choosing each part for your AR9's lower? This lower build kit includes all the parts you need to assemble your fabricated AR9 80% lower or retail-bought 9mm stripped lower.

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.

AR9 Lower Build Kit: What's Included

Fire Control Group

  • AR-15 Hammer
  • Hammer Spring
  • AR-15 Trigger
  • Trigger Spring
  • Trigger/Hammer Pins
  • Disconnector
  • Disconnector Spring

Buffer Tube Assembly

  • Buffer Tube
  • Buffer
  • Buffer Spring
  • Castle Nut
  • Latch Plate
  • Buffer Retainer Detent
  • Buffer Retainer Detent Spring

Takedown & Pivot Pins

  • Takedown Pin
  • Pivot Pin
  • Takedown Springs (3)
  • Takedown Detents (3)

Bolt Catch Assembly

  • Bolt Catch
  • Bolt Catch Detent
  • Bolt Catch Detent Spring
  • Bolt Catch Roll Pin

Safety Lever Assembly

  • Safety Selector
  • Selector Detent
  • Selector Spring

Installation Instructions

Follow our step-by-step picture and video guide to install your AR9 Lower Build Kit. You'll also need some basic tools, like an Armorer's Wrench, and Roll Pin Punches with a Gunsmithing Hammer.

Guide: How to install the AR lower parts kit.

Completing Your AR9 Build

Make finishing your AR9 pistol even easier! Check out our available 9mm barreled uppers.

 


 

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: www.P65Warnings.ca.gov

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.

80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Platform:
AR9
Caliber:
9mm

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.