PSA AR15 Complete Classic SBA4 Lower

More Views

PSA AR15 Complete Classic SBA4 Lower

In stock

Special Price $ 189.99

Regular Price: $ 299.99

Quick Overview

Must be 21 or older to purchase.

If you live in California, please read this notice before ordering.

WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to (CA Health and Safety Code Section 25249.6).

SKU: 5165458908
UPC: 5165458908
MFR#: 5165458175


  • Receiver is Machined from 7075-T6 Aluminum Forgings
  • Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2
  • 7075 Receiver Extension
  • A2 Classic grip, Black
  • SB Tactical SBA4 Adjustable Brace, Black
  • USGI Classic trigger guard, Black
  • Standard Carbine Buffer
  • Un-notched Hammer compatible with 9mm use
  • Caliber: Multi

Add To:

This complete Palmetto State Armory Pistol Lower with SB Tactical SBA4 Adjustable Brace is fully assembled and ready for your Pistol Upper!

SKU: 5165458908
SKU 5165458908
Department Firearms - Receivers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165458908

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 12 questions Browse 12 questions and 12 answers
Doesn't this pistol lower extend or not ?
michael H on Jul 19, 2019
BEST ANSWER: Do y'all actually read the description before asking these questions? Lol
What caliber is this compatible with? Can it shoot 5.56?
Rich W on Jul 5, 2019
BEST ANSWER: It will accept any AR-15 upper. So technically it will shoot 5.56/.223, .300BLK, .22LR, to name a few.
Would this work well with a 9mm upper?
Ronnie D on Oct 21, 2019
Is this "pistol legal" like the SBA3 is?
Jason on Jul 2, 2019
BEST ANSWER: Yes, the SBA4 is just the newer version or generation of SBA3 brace.
Does it come with a ambi safety switch?
Tony P on Dec 7, 2019
BEST ANSWER: No it does not come with an ambidextrous safety.
Would this work well with 9mm upper?
Ronnie D on Oct 21, 2019
BEST ANSWER: The 9mm upper will mount to it fine but it does not have the ejector finger to remove the empty casing after the bolt cycles back.
Is there writing/branding on the magwell or is it blank?
Larry on Sep 5, 2019
BEST ANSWER: Yes it has the engraved the palmetto name in the logo and PA-16 Multi and patient number on the left mag well and blank on the right side mag well.
Is the trigger single stage or double stage?
Zak W on Jan 25, 2020
BEST ANSWER: My lower came with a single stage trigger.
Mil-spec or commercial buffer tube?
Alan M on Dec 31, 2019
BEST ANSWER: mil-spec 7075 tube
Will a PSA 7.5" PISTOL-LENGTH 5.56 NATO 1/7 NITRIDE 7" LIGHTWEIGHT M-LOK RAILED UPPER WITH BCG & CH - fit on this complete upper?
Dee Strokes on Sep 18, 2019

Yes it will!

Best Regards,
Palmetto State Armory Customer Service
What is the weight of this lower as configured?
B_Mac91 on Nov 9, 2019
Kenneth D on Sep 6, 2019


4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Same great quality as all the other lower's from PSA
Taking off a star because of the new shipping policy on S# order's.2 week's from order to delivery.
Back to the lower.This is a great deal.The brace it's self is going for $120ish,I have seen better trigger's on these lower's but i polish them strait out of the box any way so no big deal for me.
.In case you are wondering about how far the brace extend's.It is pretty much the same length as a standard M4 stock.
August 16, 2019
Great lower at unbeatable price and quality manufacturing.
Fast secure shipping. Impressed with the quality of manufacturing. No more milling marks than on much more expensive lowers that I have. No sharp edges and even coating on all the parts. My BCA upper matched up with no problems and a good tight fit. I’ve ran about 500 rounds through this build and had zero problems. I will be ordering more.
August 4, 2019
7 months ago