PSA AR-15 Lower Safe/Fire - 1728

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PSA AR-15 Lower Safe/Fire - 1728

In stock

Regular Price: $ 119.99

Special Price $ 39.99

Quick Overview

Must be 21 or older to purchase.

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

SKU: 1728
UPC: 1728
MFR#: 2340466

Forged Mil-Spec Lower
Made from 7075-T6 Aluminum material
Black Hardcoat Anodize Finish
Multi Caliber
"Safe" & "Fire" marked Fire Selector
High Shelf Lower

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These lowers are made using the most advanced aerospace manufacturing technology to produce the industries finest, forged Mil-Spec lowers. Our receivers are machined on a multimillion dollar, automated, manufacturing system which enables us to produce a product of unequaled quality and value. 

These forged lowers are quality made using material is 7075-T6 and are marked "CAL MULTI" to accommodate most builds.  Finish is Black Hardcoat Anodize per MIL-8625 Type 3 class 2.

Fire selector is marked "Safe" and "Fire".  This is a "high shelf" lower.

California Buyers - stripped lowers are sent to California as "Long Guns" only. 

PLEASE NOTE:  We are not accepting phone orders on this item. Lowers may take up to 10 BUSINESS DAYS to ship from receipt of FFL information.  Please help us help you by ensuring your FFL is sent in as soon as possible.

Please make sure the business name of the FFL you will be using is on your order.

SKU: 1728
SKU 1728
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
SKU: 1728

Questions and Answers

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Browse 39 questions Browse 39 questions and 160 answers
If this item is in stock at a nearby store, can i purchase it there instead of online?
Daniel B on May 11, 2018
BEST ANSWER: Stores will honor online pricing.
Can you make an AR-9 from this lower?
Ronald on Apr 16, 2018
BEST ANSWER: You COULD using a Colt patterned conversion kit but you would probably be better off using one of PSA's dedicated 9mm lowers in either the Glock or Colt patterns.
PSA Stripped Billet 9mm Glock Lower
PSA Stripped Billet 9mm Glock Lower
PSA 9mm MOE Black lower 7778705
PSA 9mm MOE Black lower 7778705
How do I purchase a striped lower?
James G on Apr 30, 2018
BEST ANSWER: Put it in your cart, select an FFL to ship to, Pay for the item, contact the FFL to inform them of the shipment, when it arrives at the FFL - fill out the paperwork for transfer - clear the FBI background check - pay the FFL for the transfer - have fun with it
Can Palmetto put name and address on lower for a SBR build?
Alton H on Apr 19, 2018
BEST ANSWER: PSA does not currently offer that service. I would recommend taking the lower receiver to a local trophy shop to get it engraved.
Since this is a stripped lower this can be shipped to california as an FFL and treated as a long gun?
Ahman M on Jun 10, 2018
BEST ANSWER: It can be shipped to California, however it is put in an ‘other’ category and can only be sold to ages 21+ if that is your concern. It can be built into a long gun, and then an intrafamilial transfer can be done to someone under 21. It is not treated as a long gun until it is built into one.
What is the pin size on these lowers?
bentman on May 11, 2018
BEST ANSWER: They are mil-spec lowers meaning that any mil-spec lower parts kit will fit it. The fire group pin holes are .154 if that helps.
What does high self lower mean?
James G on Apr 30, 2018
BEST ANSWER: A high shelf lower prevents the installation of an auto sear. Some binary triggers will not work with a high shelf lower.
Is this a rifle lower or can it be used for a pistol build?
J R on May 13, 2018
BEST ANSWER: Any lower regardless of the markings can be used as a pistol lower...the law states that if you buy a complete rifle you can not use that lower for a pistol. So any stripped lower or complete lower my be used as a pistol. Just don’t buy a complete rifle and slap a short barrel upper on it.
Do the #1728 lowers have an upper tension screw?
AZHTfreak on May 1, 2018
Is a ffl required to purchase in store?
Justin S on May 25, 2018
BEST ANSWER: Yes, when it transferred to your FFL you will have to do paperwork and have it called in to Uncle Sam!
Does this lower have a serial number? The picture doesn’t show one. If there’s no SN does it need to ship to an FFL?
Robert J on May 31, 2018
BEST ANSWER: Yes, it has a serial number and must go to an FFL
Is this a "stripped" lower?
copman on Jun 5, 2018
BEST ANSWER: Yes, this a completely stripped lower. The lower is well finished, with smooth lines excellent lines. Will be great for my next biuld.
JORGE R on Aug 29, 2018
BEST ANSWER: Negative. No milling needed. Just need lower parts kit (spring/pin kit, trigger group and trigger guard, ect).
will i need to do any drilling?
robert G on Aug 21, 2018
BEST ANSWER: No drilling necessary if installing a standard single fire (semi-auto) trigger group or “drop-in” trigger.
Will this work with the psa aac300 blackout pistol kit?
Douglas W on Aug 25, 2018
BEST ANSWER: Short answer yes, most all calibers use a standard AR lower like this .223/.556/7.62x39/6.8spc/.450/.458/300black our etc. .308/30-06 and the like will not. This lower will make an excellent base for you 300 build!
Can this be legally use to make a pistol?
Michael T on Sep 3, 2018
BEST ANSWER: Not a legal expert, but they are stamped "multi" so... Yes. I have a pair of these I built, one as rifle, one as pistol. That being said, it's your responsibility to to check your local laws.
Will this work with the PSA classic Blackhawk lower build kit?
Billy H on Jun 15, 2018
BEST ANSWER: I have used several Blackhawk lower build kits on PSA stripped lowers and have been very pleased. The only improvement I would suggest is to upgrade the trigger assembly with one of PSA's enhanced units down the road, they are sweet. The trigger system that comes with the lower parts kit is also a good working unit.
PSA AR15/PA10 EPT - Enhanced Polished Fire Control Group - 507797
PSA AR15/PA10 EPT - Enhanced Polished Fire Control Group - 507797
Can this be used for a pistol build? How do I designate it for pistol on the forms?
Robert O on Jul 23, 2018
BEST ANSWER: Yes, I used it for one of mine. All that you have to do is tell your gun shop that you have it shipped to, that it needs to be registered as a pistol when you go to pick it up.
Is this lower compatible with any lower build kit?
Ramon on Jun 9, 2018
BEST ANSWER: Yes as long as the lower build kit is for an AR15 style rifle.
Can this be used for a 300 blackout kit?
James S on Jun 3, 2018
BEST ANSWER: Yep. I did. 300 blk runs on the ar-15 lower. It uses the same guts and magazines. It only requires a different barrel. Same BCG as 5.56 too. You can really make a lower and just switch out uppers.
Can you build a 6.5 grendel with this lower?
Aalvarez2008 on May 16, 2018
BEST ANSWER: Yes you can. It will go right on a Grendel upper.
New to building AR’s so trying to learn here. What lower build kit would be recommend with this lower for an ambidextrous build?
Bud C on May 14, 2018
BEST ANSWER: Any milspec lower, which is what this is can be built with ambi parts, specifically the safety, bolt catch and now they make an ambi magazine release. You need to buy a stripped lower. Then purchase the ambi parts you want.
Would this work with a 300 blk out upper?
Chris B on Aug 20, 2018
BEST ANSWER: Absolutely. It would work with no changes or modifications whatever and will use the same bolt carrier group. The .300 BLK is essentially a .223 which has been necked out tp .30 caliber.
Will this work for a 450 bushmaster upper kit?
Cornbread on Aug 19, 2018
BEST ANSWER: Yes it will, very nicely! I have built a 450 Bushmaster, and it is my main hunting rifle now!
Will this work for the AR pistol?
jack t on Aug 15, 2018
BEST ANSWER: Absolutely, I just finished a pistol build with one.
What’s the smallest size Barrel (upper) can I use on this stripped lower ? Without having to do any extra paper work.
Chris S on Jul 24, 2018
BEST ANSWER: As long as it’s an ar pistol then barrel length shouldn’t matter to my understanding
Is this lower capable of supporting an 224 valcory caliber?
Roy2015 on Jul 1, 2018
BEST ANSWER: Yes. Only difference between the 5.56/223 AR15 and the 224 Valkyrie is the bolt and the barrel.
Will this lower match up to a 603 M16A1 upper?
Nathan H on May 31, 2018
BEST ANSWER: Is this an original Colt upper or is it a clone? From what I can gather they should fit together as long as the takedown pin holes are the same diameter.
If I purchase a stripped lower online can I pick it up in store?
David T on Jul 17, 2018
BEST ANSWER: Yes, when you purchase it online you will have to select which store you’d like it to ship to.
what is a high shelf lower?
Kim O on Jul 11, 2018
BEST ANSWER: A Colt lower, that prevents you from using a RDIAS.


4.9 / 5.0
648 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Very nice quality
Very sleek looking easy to put lower parts kit in
October 17, 2018
1 month ago
For the budget conscious builder
Affordably priced for the budget conscious and first time builder.
Very clean foundation to build on.
Plan to get a few more down the road in the very near future.
User submitted image
Added Oct 16, 2018
October 16, 2018
1 month ago
Great lower!
Great lower! Assembled with Velocity trigger, Magpul furniture and a .300 Blackout upper from PSA. Great shooting rifle!
October 16, 2018
1 month ago
Good Deal!
Lowers are cheap and work. No complaints. You get what you pay for on the fit and finish though.
October 15, 2018
1 month ago
Solid piece of work
No complaints. Very good for a build
October 15, 2018
1 month ago
Great receivers
Just like everything else I have ordered Here. Perfect and top notch quality.
October 14, 2018
1 month ago
Great product at an excellent price!
First, I would definitely recommend this PSA Lower receiver. This is my third build using a PSA AR15 Lower Receiver. It is a basic mil-spec receiver and the quality is excellent. Fit and finish is second to none, and it's at an excellent price. This receiver is not just for budget builds as indicated by the photo of my .223 wylde.
PSA AR-15 Lower is a solid  Mil-spec Lower Receiver.
PSA AR-15 Lower is a solid Mil-spec Lower Receiver.
October 14, 2018
1 month ago
Stripped lower
No issues, great price
October 14, 2018
1 month ago
Quality and affordable. Great customer service.
October 13, 2018
1 month ago
Great Value
This lower is a great value. I compared it to several other brands for features and suitability – – for 40 bucks it is a superior deal and functions superbly.
October 13, 2018
1 month ago

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