16 inch carbine ar-15 rifle barreled upper assembly

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PSA 16" Carbine Length 5.56 NATO 1:7 M4 Nitride MOE Upper - with Rear MBUS, BCG, & CH

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Regular Price: $ 599.99

Special Price $ 279.99

Quick Overview

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SKU: 77932952
UPC: 77932952
MFR#: 77932952

Barrel Length: 16"
Gas System: Carbine
Barrel Profile: M4
Barrel Steel: 4150V Chrome Moly
Barrel Finish: Melonite
Chrome Lining: none
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 7"
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: F-marked Front Sight Base
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Hand guard Type: Magpul MOE Black Handgaurds
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full Auto
Charging Handle included: Yes
Rear Sight: Magpul MBUS Rear Flip-Up Sight
Overall Length: 24.5"



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Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. Barrel is is finished off with Magpul MOE carbine-length handguards, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, Shot Peened, High pressure tested, Mag particle inspected,  Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.  8620 steel M-16 profile carrier is chrome lined and phosphate coated.

Includes: Magpul MBUS Rear Sight - Black. The US made MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.  Spring-loaded flip up action is easily activated from either side or by pressing the top.  Impact resistant polymer construction provides light weight and resists operational abuse.  

SKU: 77932952
SKU 77932952
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 77932952

Questions and Answers

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Browse 36 questions Browse 36 questions and 122 answers
How will this work with a Anderson lower?
Leslie S on Apr 12, 2018
BEST ANSWER: I have an Anderson lower and it fits just fine on it.
Will this work on any lower?????
MarkBer69 on Apr 12, 2018
BEST ANSWER: Yes it will. If it is milspec
Is this a "freedom" line rifle?
Pepper on May 30, 2018
BEST ANSWER: No it’s not.
Can this be shipped to California?
Tony R on Nov 24, 2018
Can I just Swap out my current upper and use the same lower I am now shooting with? (De Ton)
Sandy B on May 23, 2018
BEST ANSWER: If your lower is made to "milspec" sizes, and most of them are, then the upper should work just fine. I've used it on a milspec homemade.lower as well as a spikes lower with no problems.
Will this upper work with this lower; PSA AR-15 Complete Classic Lower - No Magazine - 7244.? Also are these the only items needed minus magazines for an operational AR-15? Thanks
Chris K on May 23, 2018
PSA 16
PSA 16" Carbine Length 5.56 NATO 1:7 M4 Nitride MOE Upper - with Rear MBUS, BCG, & CH
PSA AR-15 Complete Classic Lower - No Magazine - 7244
PSA AR-15 Complete Classic Lower - No Magazine - 7244
BEST ANSWER: Yes it will work and yes the only other thing you need to hit the range is a mag. The lower will have to be shipped to your ffl.
So this fires 556 and 223?
Alexander on Apr 21, 2018
BEST ANSWER: Yes I’ve fire steel case and brass, .223 & 5.56 with no issues. This things the real deal. Very impressed with PSA’s professionalism and Quality control. Coming back for another upper soon.
What shape is the handgaurd retainer cap on this guy? I read earlier most carbine are round, most midlength are triangular.
Layne M on May 24, 2018
BEST ANSWER: Round. This is a good upper, I recommend it.
Would this fit a S&W M&P 15 lower?
Ralph1 on Dec 15, 2018
BEST ANSWER: It should it fits my spikes, palmetto, and anderson lowers nicely
Is this a "Freedom upper" or a premium?
Pepper on May 30, 2018
BEST ANSWER: This is a premium, you will be much happier with premium products than freedom
I just ordered this upper. Is the handguard a M Lok one?
Larry O on Jun 11, 2018
BEST ANSWER: I might be late but yes the handguard is a M-Lok
Can I change hand guard? If so what size is this hand guard?
Rigo O on Jan 4, 2019
BEST ANSWER: You can change it to any color you want, it is going to be carbine length though.
Is the front sight removable?
Richard A on Apr 24, 2018
BEST ANSWER: Yes it has two pins that have to be removed then you have to replace with a new gas block . Caution you sometimes it can be hard to get pins out. Need right sized punch and backing block .
Is this upper already manufacture zero (sight)?
Martin on May 13, 2018
BEST ANSWER: No, it is not. The rear sight comes in a bag but not installed. Even if they did zero it at the factory you would at minimum want to check the alignment since the sight has been removed.
how long will it take to get a new upper sent out when purchased ?
Brian S on Mar 19, 2019
BEST ANSWER: It was pretty quick in my opinion. Since it’s not an FFL required item, it comes straight to your door.
Is this a premium or freedom upper ?
Ernie S on Jun 7, 2018
BEST ANSWER: Definetly not premium!
Good upper for the price, but this is the only upper I’ve purchased that doesn’t work
with the CMMG 22 conversion bolt.
Is the 16 inch barrel legal I thought it was supposed to be 18inches?
Ray T on Mar 19, 2019
BEST ANSWER: 16" is the legal minimum. Or 14.5" with a permanently affixed muzzle device to bring the overall length to 16". Your state may vary so double check but I'm pretty sure all states have 16 as the minimum.
Does the handguard come off to expose just the rails?
Dario P on Jan 9, 2019
BEST ANSWER: There are no rails under the handguard. The MOE handguard has slots that are similarto, if not exactly like MLOK slots, where you can attach rails, grips, ect. They are purchased separately.
Are the attachments on this mlok?
Matthew S on Feb 28, 2019
BEST ANSWER: No sir, the hand guard is by magpul and will only accept that brand of attachments.
Do the pre built uppers come head spaced?
kerry p on Feb 11, 2019
BEST ANSWER: Hello Kerry, the complete upper assembly is headspaced and ready to mount onto an complete lower assembly. I mounted the upper assembly to the lower assembly that I assembled and it fired flawlessly. I have put 200 rounds thru it without an issue.
Does this upper come with a triangular or round handguard cap? I plan to use a Troy drop in quad rail and need a round cap to install.
Tuco217 on May 14, 2018
BEST ANSWER: They come with round ones
I’m Having an issue putting the MBUS sight on? Anyone else? Seems like it doesn’t fit on this rail
Jjoyce1017 on Feb 23, 2019
BEST ANSWER: I seem to remember, at first, having the same issue until I realized that those little screws or bolts, in the sight, have to be removed completely before it will slide on the rail.
2 Questions: 1) Will this work with .223 rounds instead of 5.56? 2) Can you put a foregrip on the handguard?
Ronnie B on Jul 10, 2018
BEST ANSWER: Since it is chambered for the military 5.56 it will be fine for the .223 with some loss of pressure. The converse is not OK
Is the front sight post pinned?
Justin48117 on May 24, 2018
BEST ANSWER: Yes it has to tapered pins you can remove but sometimes are a pain even with the right tools.
Will this fit on the Blackhawk classic lower?
Jjoyce1017 on Feb 7, 2019
BEST ANSWER: It should fit any lower but I bought this for my father in law and it won’t cycle any bullets the extractor won’t pull the bullet out
Will this fit spikes lower assembly?
Dan M on Nov 21, 2018
BEST ANSWER: Yes! I tried it on my Spike’s Tactical Honey Badger.
Is this md compliant? as far as hbar I know its needs to be 16" + as well
Ben D on Nov 7, 2018
BEST ANSWER: Not MD compliant, it has a gov't profile barrel.
Is the flash suppressor detachable?
eDolo on Oct 10, 2018
BEST ANSWER: Yes, just unscrew and put your own break or comp on by just screwing back on and make sure it’s timed.
will this work on a juggernaught tactical lower?
lazaro n on Sep 2, 2018
BEST ANSWER: Yes it will . It will fit any milspec AR lower . I matched mine with a Anderson reciever
How do you know if it is a drop in barrel or free floating?
Bill F on Jan 25, 2019
BEST ANSWER: The term "Drop in" typically refers to a part, like a barrel, that is easily changed or replaced with out any gunsmithing or fitting. The term "free floating" refers to a barrel that doesn't have anything touching or bearing on it.

In this case, this upper assembly is a "drop in." It should fit most standard AR-15 lower receivers. The barrel on this assembly, though, is not "free floating."


4.8 / 5.0
113 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Highly recommended
Beautiful rifle....absolutely no issues....
User submitted image
Added Mar 11, 2019
March 11, 2019
2 months ago
Favorite rifle in my safe
I was just looking to do a budget build because the New Year bug bit, so I picked up one of these "blem" kits. I have inspected every mm of the thing and can't figure out what/where the blem is! It's beautiful, matched my Aero Precision lower like a glove and turned out to be my favorite rifle after running approx 650 rounds through it. She shoots 1" groups at 90 meters (may do better with a better shooter) and hasn't suffered a single F2F, FTE, even with cheap ammo, polymer-coated stuff, steel, it doesn't matter, this thing just runs. I can't wait to do another build!
Lighting is rough, pics don't do it justice.
User submitted image
User submitted image
User submitted image
March 8, 2019
Nice upper. Would buy again.
March 5, 2019
2 months ago
works really good first 556 round I have fired since October 1971 Thanks PSA
March 2, 2019
2 months ago
Extremely pleased with this upper!
The upper is perfect. I installed in on Ruger Elite lower. This thing groups perfectly! Palmetto State Armory IS my favorite AR provider. This carbine complements my Freedom AR I bought several years ago. PSA sells great rifles and components for a very fair price and the quality is top notch.
February 21, 2019
2 months ago
Great experience, fast shipping, great quality right out of the box. Just buy it!
Really impressed with this upper out of the box. I paired it with a pretty basic PSA lower. I ended up upgrading the lower grip and stock to Magpul MOE furniture(just buy it already on the lower, it's cheaper that way). After 600 rounds and 2 cleanings, this has been a great setup. The MBUS rear sight is very nice with 2 different distance peeps. I consistently shoot 2-3 inch groups at 50-75 yards standing with the irons. I'd say that for most people, the upper is more accurate than you are. If you're even considering buying this, just do it. The Magpul handguard is very comfortable and the sights are good. Elevation was about 2 inches low out of the box. Nothing a front sight adjustment couldn't fix. I'm so impressed with PSA that i want to do an M16 clone and one of their AK pattern rifles in the near future. I would not hesitate to buy anything from them, whether it's their brand or not.
50 yard group, standing, iron sights
After putting MOE grip on the lower, upper as it came
February 21, 2019
Solid product at a reasonable price
February 21, 2019
3 months ago
Perfect. Can't wait to try it out. Nothing bad to say about P.S.A.
February 12, 2019
3 months ago
This turned out to be a great rifle so god the wife says it’s hers now
February 8, 2019
3 months ago
Excellent Upper as always
Excellent upper just like every one I’ve purchased from PSA in the past. Great fit and finish and doesn’t complain no matter what ammo I use. Perfect to start a build with and will be buying more in the future.
February 6, 2019
3 months ago

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