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 $ 49.99

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#: 1728

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
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 1728

Questions and Answers

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Browse 60 questions Browse 60 questions and 209 answers
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
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.
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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.
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.
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.
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.
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
Can I use this for my ar pistol build? I don’t want any backlash with the atf I need to be in compliance with pistol
CELL89 on Dec 11, 2018
BEST ANSWER: Yes as long as that’s the only thing it’s used for. You can use it on any pistol but do not mix with rifle length setup.
Do the #1728 lowers have an upper tension screw?
AZHTfreak on May 1, 2018
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.
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!
Will this work for the AR pistol?
jack t on Aug 15, 2018
BEST ANSWER: Absolutely, I just finished a pistol build with one.
Can this lower be used for a pistol build ?
Doug L on Dec 6, 2018
BEST ANSWER: Yes it can. I used this exact same one on my 7.5 in. Barrel pistol build.
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 it can, that's what I used mine for. There is no designation required for building a pistol, just know what can and can't be put onto a pistol when it comes to accessories.
Is this lower compatible with any lower build kit?
Ramon on Jun 9, 2018
BEST ANSWER: Any AR-15 kit , yes
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.
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 small as you want to make a pistol, otherwise 16in. for a rifle
Is this lower capable of supporting an 224 valcory caliber?
Roy2015 on Jul 1, 2018
BEST ANSWER: Yes, you have to use a 6.8 mag though as the .224 Val is on the 6.8 SPC case
Which 11.5” barrel 5.56 PSA upper is recommended for this lower?
Obewan on Nov 26, 2018
BEST ANSWER: Any PSA upper will serve you well, as long as it has the options you desire. i.e. M-Lok or similar, flash suppressor, etc.
what is a high shelf lower?what makes it different than say an off the shelf complete s&w ar 15
doug r on Sep 20, 2018
BEST ANSWER: high shelf or low really only makes a difference if you have a registered drop in auto sear . there is a bit more metal but it makes little difference .
Can i use this with the 9mm hybrid uppers from PSA if i used a 9mm lower PSA kit and had a magwell conversion for glock mags?
Block on Nov 8, 2018
BEST ANSWER: Yes, be aware sometimes there are figment issues with conversion kits and require some Gunsmithing> personally I would stay away from conversions and get the correct lower that accepts 9mm Glock magazines. I am a gun store owner and gunsmith, I am giving my opinion from past experiences.
What Glock magwell adaptor would work with this lower?
Devon A on Oct 20, 2018
BEST ANSWER: Yes, it is a mil-spec lower and all of the different 9mm magwell adapters are designed to work with mil-spec lowers. The other option is using a Mean Arms Endo Mag.
Does the finish on this receiver more closely match the nitride or the phosphate finish?
Jay J on Jul 12, 2018
Is this a "stripped" lower?
copman on Jun 5, 2018
BEST ANSWER: Yes, it is only the milspec lower. No internals
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.


4.9 / 5.0
807 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good value lower
Used this for a pistol build kit, fit and finish is amazing havent had any problems with it at all.
February 18, 2019
10 months ago
I have had no problems from this lower.
February 17, 2019
5 months ago
You guys rock!
I am very satisfied. It is a quality product and showed up quickly.
February 16, 2019
1 month ago
works fine
Bought one of these to assemble a PSA carbine kit. Uppwer half was already assembled. Less than an hour to assemble lower, including running upstairs numerous times to check a YT assembly video. PSA puts the parts in different baggies and makes it easy. The parts you need for a step will be in one baggie. Rifle runs great. About $335 without optic or rear sight. Even has a nitrided barrel. Lower mated up perfectly and colors match (every company's black is not the same). What a deal.
February 16, 2019
Very good lower for the price. Everything you need to build a quality AR. My 10.5" pistol build went great. I'll definitely be doing another PSA build in the future.
February 15, 2019
1 month ago
Great lower from PSA!
Excellent Mil-Spec Lower. Why would you paying more with other companies?
User submitted image
Added Feb 15, 2019
February 15, 2019
1 week ago
Top quality and not a hitch
Saw this receiver at a gun show and had to order. Best reputation and adds $$$ to your rifle.
February 14, 2019
1 year ago
Great value
Good quality product
February 13, 2019
4 months ago
Anodizing is light
The lower I received will not match up with any upper I have, not even a PSA upper. It is more of dark gray than black. Not a fan of 2-tone guns. Haven't even built on it yet so don't know how the function will be.
February 13, 2019
Was easy to build. Great company
Was shipped quickly, FDA transfers went as planned. Fit and finish were as expected
February 12, 2019
8 months ago

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