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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WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

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 39 questions Browse 39 questions and 130 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
Can this be shipped to California?
Tony R on Nov 24, 2018
Is this a "freedom" line rifle?
Pepper on May 30, 2018
BEST ANSWER: No it’s not.
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.
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.
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
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
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.
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
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: Yes the hand guard is mlok.
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
Will this upper fit a scope (bushmaster) with the mbus sight attached or will there not be enough room?
Jeffrey B on Mar 31, 2019
BEST ANSWER: If your scope mount is tall enough to clear the mbus, the scope will fit. The is enough room on the flattop for an optic and a back up sight.
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.
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 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.
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
Can you attach a flashlight ?
Jkchavez on Dec 18, 2018
BEST ANSWER: You will need Magpul parts to attach to the heat shields, then you can decide on the flashlight configuration.
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.


4.8 / 5.0
131 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Cant be beat for the price.
I have only put about 100 rounds through it, but no issues. Reliable and accurate . Very satisfied, especially with price. Workmanship at least on par with what im used to with military weapons.
June 22, 2019
2 months ago
Highly recommend
Great upper. Fit perfectly. Put 150 rds through it so far with zero failures.
June 21, 2019
1 month ago
Love the rear mbus sight and magpul gandguard upgrade!
User submitted image
User submitted image
June 20, 2019
1 month ago
Very satisfied customer
Very well put together great value gun!
June 16, 2019
1 month ago
Was impressed with every aspect of this purchase. Great price, excellent quality and attention to detail, free shipping and delivered in 2 days!!!! PSA-no BS, just great quality and customer service.
June 8, 2019
1 month ago
Great product and a fair price!
Great product for the price. Shipping was pretty slow but part of that was UPS. I will definitely be making more PSA purchases. I wanted to make a simple good shooting rifle that can burn through whatever rounds i can throw at it. I mated this upper with a simple Anderson lower and turned out just as I wanted.
May 22, 2019
3 months ago
Great product and Service, especially for a first order.
First item ever ordered from PSA, was impressed with the fit and finish of the reciever. Fit like a glove on my Anderson Manufacturing lower. When the upper arrived it was missing the Magpul forend, a 10 minute conversation with customer service and my part was on it's way, recieved it less than week later no questions asked, no fuss. 5 stars for the product and 10 for James at customer service.
Just missing the forend.
Just missing the forend.
May 22, 2019
Awesome upper for the price
I used this upper to build one of my favorite M4's The price is great and shipped quickly. For me,..... another winner from PSA.
May 20, 2019
3 months ago
Perfect kit for a basic m4 style ar
May 19, 2019
1 year ago
Received upper and lower in great shape. Very happy with the quality and especially the price!
May 19, 2019
3 months ago

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