PSA Upper Build Kit and Classic Lower Parts Kit Combo - 37448

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PSA Upper Build Kit and Classic Lower Parts Kit Combo - 37448

In stock

Regular Price: $ 129.99

Special Price $ 59.99

Quick Overview

SKU: 37448
UPC: 37448

A handy kit to outfit your stripped upper and lower receiver at a special price.

SKU: 37448

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1 PSA Upper Build Kit

  • Barrel nut
  • Delta ring
  • Weld spring
  • Snap ring
  • Dust cover
  • Hinge Pin
  • Dust cover spring
  • C-clip
  • Forward assist
  • Forward assist spring
  • Forward assist roll pin

A high quality lower parts kit needed to assemble your AR-15 lower. Parts are 100% made in USA! Assembly takes place right here at our new facility in Columbia, SC.


New Gen 2 Kit!! Features black oxide coated hammer and trigger springs.




Trigger Spring


Hammer Spring

A2 Grip

Buffer Retainer Pin

Buffer Retainer Spring

Trigger Guard

Safety Selector

Bolt Catch Spring

Detent Spring

Bolt Catch Plunger

    Bolt Catch


Disconnecter 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
SKU: 37448
SKU 37448
Brand Palmetto State Armory
Daily Deal N/A
Daily Deal Expires N/A
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Free Shipping? N/A
SKU: 37448

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4.5 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
The trigger is very nice for the money! No problem rattling off two and three shot bursts. Great trigger. Lighter rhan milspec.
Great parts . Great trigger. Installed easily.
July 3, 2018
1 month ago
Good price for a basic build kit!
This kit is no frills get the most basic job DONE! Everything in the kit is basic standard. The springs do appear a little thin compared to others I have had in the past However I was planning on replacing them down the road anyway.
I did have the Forward assist missing from one of the kits! I used the websites customer service feature and
Dylan D. got back to me in two days via email and after one more exchange he told me the part is on the way!
June 2, 2017
Combo Kit....
This kit is perfect for the gunsmith as well as the hobbyist as it contains both the upper and lower individual parts. Great value and unexpected quality. I don't think I'll ever purchase these kits separately unless it is a client request. Thanks again PSA for great parts at a great price and producing a winning combination.
October 24, 2015
Very good but not perfect.
This kit goes together (with the help of a lower receiver) like Legos. Nothing needs filed or tinkered with to make a firm fit. There are some minor short coming: First and foremost the grip attachment bolt was too long and I had to add a spacer; now I cannot with certainty blame the kit and not my receiver but it is noteworthy. Secondly The trigger has a lot of take-up and a heavy pull. I think that is acceptable for the price point. It may well wear in after after a few hundred rounds. Overall I think this kit is of good value; I will likely buy more.
August 10, 2015

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