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

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


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
SKU: 77932952

Questions and Answers

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Browse 14 questions Browse 14 questions and 62 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 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.
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.
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 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.
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.
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.
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.
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
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
Is this a "freedom" line rifle?
Pepper on May 30, 2018
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.


4.9 / 5.0
51 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Excellent value
Along with a lowers kit purchased from PSA this went into an Anderson lower, destined to be unadorned light handling woods partner. Delighted with the ease of integrating the pieces; zero build issues & it shoots a tad better than MILSPEC acceptance with my MILSURP ammo, so no issues there either. Super value & the customer service is great.
June 17, 2018
1 month ago
CMMG 22LR Does Not Work w/this Upper!
I specifically bought this upper for my CMMG 22lr conversion kit and it does not fit all the way in this upper. I have a Colt M4 6920 that the CMMG kit works flawlessly in but is extremely dirty after using the kit. I live in NC and so the free shipping was crazy fast. The fit and finish of the upper is very nice. I bought the PSA Classic lower to go with this and it matched up perfectly. Haven't fired it yet, but I do not expect any issues as my buddies have PSA rifles that fire just fine. I will go to PSA again for my next build.
June 15, 2018
1 week ago
Works Great
I don't really understand what you can do wrong with an upper but this one is amazing. Love the MBUS and the BCG. Nothing is loose or wiggly I only have about 60 rounds through it and it performed amazing, there were no malfunctions even when I di a mag dump. So overall it's amazing.
June 12, 2018
2 months ago
Premium in my book
It looks and feel premium, no blemishes and everything fit and feels great, functions flawless so far, about 600rnds down range. Mounted on a Spikes lower and everything is great so far.
May 31, 2018
7 months ago
Fantastic upper, attached to my Anderson lower and fired 200 rounds thru it with no issues. Could not be happier with my purchase and plan to build an AR-10 in the near future.
May 30, 2018
2 months ago
Easy to install and great for the price
Works great and easy to lube and set up, great if your just starting out and want to get a feel for these types of guns
May 27, 2018
3 months ago
Outstanding product. Couldn't be happier why pay more for less!!!!
Love my new upper. Everything I could have hoped for. Great product super fast shipping overall Awesome.
May 26, 2018
1 month ago
Good buy
Can't go wrong with these uppers. Good durable build for an upper.
May 20, 2018
6 months ago
Excellent product
Excellent product bought two of these. I matched them with Anderson lowers for the price you can't get any better. Shot 200 hundred rounds of assorted ammo through both. They functioned perfect with anything I fed them .Shipping was fast ! Once processed. which was less than the ten days they advertise before ordering.
May 18, 2018
2 months ago
Awesome upper fires flawless no matter what ammo I put through it. Flip up sight zeroes very quickly.
May 17, 2018
2 months ago

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