Palmetto State Armory AR-15 Lower Build Kit in Black

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PSA Classic Pistol Lower Build Kit, Black


Quick Overview

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: 5165449176
UPC: 5165449176
MFR#: 39630
  • Pistol buffer tube
  • Pistol tactical latch plate
  • Carbine buffer spring
  • PSA carbine buffer

Everything you need to turn your stripped lower into an AR-15 pistol lower.

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A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol.


Trigger Spring 
Hammer Spring 
A2 Grip 
Buffer Retainer Pin 
Buffer Retainer Spring              
Trigger Guard 
Safety Selector 
Bolt Catch Spring 
Detent Spring 
Bolt Catch Plunger
Pistol Buffer Tube
Carbine Buffer Spring
PSA Carbine Buffer


Bolt Catch
Disconnector Spring
Magazine Catch Spring
Bolt Catch Roll Pin
Magazine Release Button
Magazine Catch
Pivot Pin
Selector Spring
Safety Selector Detent
Rear Take Down Pin
Takedown Pin Detent
Pistol Latch Plate with sling loops

Everything you need to turn your stripped lower into an AR-15 pistol lower! 

SKU: 5165449176
SKU 5165449176
Department Build Kits & Parts Kits
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449176

Questions and Answers

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Browse 4 questions Browse 4 questions and 13 answers
What weight is the buffer weight?
jesus z on Aug 26, 2018
BEST ANSWER: Will this buffer kit work for a 300 blackout 9" build? Also can you tell me the length of the buffer tube?
Will the SB tactical braces fit over this buffer tube? I know they're finicky in size. My SB brace will not fit over any of my other buffer tubes. Need to confirm before buy.
Brad E on Jun 30, 2019
BEST ANSWER: I haven't assembled mine yet, the brace I bought seems like it will fit just fine. While there are 2 diameter sizes for rifle tubes, mil spec 1.14" & commercial 1.17".There is only one size pistol tube as far as I know. They are concentric/round and the braces have the velcro strap. They just slide on. I would let it warm up like in the sun and slide it on taking care to line it up. I wouldn't put any thing on it to help it slide on as I would want it to be as strong/tight as possible.
Will this work for a AR9 lower?
Ivan G on Jun 17, 2019
BEST ANSWER: Yes this is used to complete an mil spec AR lower this kit includes a buffer tube for an AR pistol so if your planning on doing a pistol build these work well
what is the outside diameter of the buffer tube?
boots on Jun 29, 2019
BEST ANSWER: The buffer tube outer diameter is 1.25 inches, which is the basic standard. After 6 months still running 100% in 80% lower. Have fun.


4.6 / 5.0
15 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good product no issues
User submitted image
Added Jul 29, 2019
July 29, 2019
1 month ago
Not a dimpled buffer tube as advertised! It was a smooth one that was a disappointment.
It is a nice kit first non adj stock build I was dissatisfied with the buffer tube because psa sent a smooth tube instead of the dimpled one in the add other than that it was ok.
June 30, 2019
3 months ago
Great kit for the price
Great product for the price. Will be buying again from PSA.
June 29, 2019
1 month ago
Build kit, pistol.
Excellent! Great product, great shipping!
June 19, 2019
3 months ago
PSA Pistol LPK
This kit has everything you need to put together an AR pistol lower. Just add a brace of your choice, and you are good to go. Everything was good quality, and nothing missing.
June 14, 2019
4 months ago
Awsome lower parts kit
I own both lower parts kits palmetto offers magpul edition lpk an the classic lpk. For my rifles I use magpul & for AR pistols I felt the classic grip angle felt better when shooting
April 29, 2019
9 months ago
I made my wife a pink pistol
She loves it. Pink Magpul furniture. She uses a CMMG conversion kit as well.
User submitted image
User submitted image
March 4, 2019
9 months ago
Nice set
Very nice lower parts kit and pistol buffer tube
February 16, 2019
12 months ago
Palmetto AR15 lower
I have bought a few lowers from Palmetto and each and every one of them has performed beautifully. This lower is especially nice. fun to buy them and finish them yourself!! Must add that every one of them always just fits perfect to the upper, no messing around....
January 20, 2019
8 months ago
Well pleased
Exceptional deal for a great kit.
January 16, 2019
9 months ago

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