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

Questions and Answers

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Browse 50 questions Browse 50 questions and 185 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.
PSA Stripped Billet 9mm Glock Lower
PSA Stripped Billet 9mm Glock Lower
PSA 9mm MOE Black lower 7778705
PSA 9mm MOE Black lower 7778705
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.
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 rifle lower or can it be used for a pistol build?
J R on May 13, 2018
BEST ANSWER: The FFL who transfers this receiver to you should indicate it as 'other' on the ATF transfer form (4473). As an 'other' you can then build it into either a rifle or a pistol. Also, you must be 21 years old or older to purchase a receiver.
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!
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 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
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.
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: Your fine because it was never a rifle. Send a letter to the atf field office if you want written confirmation. Its free and only takes about a month to get a reply.
Can this lower be used for a pistol build ?
Doug L on Dec 6, 2018
BEST ANSWER: As long as you register it as a pistol when you pick it up from the ffl holder that you have it shipped to.
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.
I says its multi caliber. How do you get it to the caliber size you need? I'm interested in building a .450 bushmaster.
snigg64 on Nov 23, 2018
BEST ANSWER: There isn’t much to do for the lower, besides maybe a different magazine. The upper will require more changes such as a different barrel, bolt, and a larger ejection port.
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!


4.9 / 5.0
737 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good basic receiver
The PSA AR15 lowers are good quality forged receivers that are comparable in quality to any other forged unit on the market.
December 12, 2018
10 months ago

December 12, 2018
1 month ago
Good Buy!
Have not started the actual build yet. But a great experience and purchase. Quality seems good and the customer service was fantastic. Once I decide on which type of build, I will be shopping jere again!
December 12, 2018
1 month ago
Great product Great Price
Good in all respects. Shipping was fast too.
December 11, 2018
1 month ago
Trusted and Reliable
Great lower, no complaints with manufacturing. Lines are clean and completely reliable.
User submitted image
Added Dec 10, 2018
December 11, 2018
5 months ago
Good price , no issues 👍
December 9, 2018
1 month ago
Only lower for me.
Great lower. Light, strong, and flawless finish.
December 8, 2018
2 weeks ago
Works well no problems. Everything fit as it should.
December 8, 2018
1 month ago
Great lower, excellent price.
December 8, 2018
1 month ago
Good stuff!
Quality and made great builds
December 8, 2018
1 month ago

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