PSA 16" Midlength 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Upper With BCG, CH, & MBUS Sight Set

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PSA 16" Midlength 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Upper With BCG, CH, & MBUS Sight Set


Quick Overview

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 (CA Health and Safety Code Section 25249.6).

SKU: 5165447592
UPC: 5165447592
MFR#: 5165447592

Barrel Length: 16"
Gas System: Mid-length 
Barrel Profile: A2
Barrel Steel: Chrome-Moly Vanadium
Barrel Finish: Melonite
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 13.5" M-Lok Lightweight Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Charging Handle Included: Yes
Overall Length: 24.5"

Add To:

Barrel: 16" barrel length Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. The A2 profile barrel is finished with Melonite. Barrel is finished off with an .750" diameter low-profile gas block, PSA 13.5" Lightweight M-Lok Free Float Rail and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts,  these upper upper receivers are made for us right here in the USA.

Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.

Includes:  Magpul® MBUS Sight Set, Black 

SKU: 5165447592
SKU 5165447592
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165447592

Questions and Answers

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Browse 21 questions Browse 21 questions and 47 answers
What is the overall weight as it is described above (including BCG)?
JF090 on May 18, 2018
What is the exact weight over all?
Christopher M on Sep 3, 2018
Does this come with the nickel boron bcg with the carpenter 158 bolt?
KRidge on Aug 14, 2018
Is this 4150 or 4140 steel?
Kevin F on May 16, 2018
BEST ANSWER: It is 4150 and it’s best price and quality parts still putting rounds down range and haven’t had any issue so fare
If I have a PSA complete lower that I purchased, would this be all I need to an complete an AR? I've never built our built one.
keith c on May 14, 2018
BEST ANSWER: Yes as long as you have a magazine.
Can this be shipped to a PO Box?
Don S on May 23, 2018
BEST ANSWER: I have these parts shipped to my PO Box all the time.
Is the barrel on this upper stamped "Freedom"?
Adam M on Sep 7, 2018
BEST ANSWER: Yes, mine was.
What is the inside diameter of the hand guard?
SteveK on Aug 26, 2018
BEST ANSWER: I don't have a dimension for you but, it is considered a slim type M-LOK hand guard.
Is the bcg that comes with this upper full auto compatible? I am thinking about getting set up with a binary trigger.
Brandin M on Sep 7, 2018
Is the included charging handle ambidextrous?
Sky H on Aug 25, 2018
Is this hand guard free floating?
KRidge on Aug 14, 2018
BEST ANSWER: Yes the hand guard is free-floating
Does the Mlok rail had QD sling sockets?
c g on Sep 2, 2018
BEST ANSWER: Yes it does, one on each side.
Can you attach a vertical grip?
Justin R on Jun 6, 2018
BEST ANSWER: Only if it is M lok. The holes are at the bottom for it.
Is the mlok feature on the bottom as well as both sides?
Slappy on Aug 23, 2018
BEST ANSWER: You have M-LOK slots at 3, 6, and 9 o'clock only.
Anyone else have trouble getting the A2 flash hider off of the barrel? This thing is stuck as if it's pinned.
Beardpick T on Jul 12, 2018
BEST ANSWER: Just took a little grunting is all. Maybe heat it up a little with a propane torch. I didn't see any thread locker on mine, but if there is any, the heat should take care of it.
What grade barrel comes with this upper?
Matt T on Jul 7, 2018
BEST ANSWER: The barrel is made of 4150 Chrome-Moly Vanadium with a melonite finish
I can buy this upper right? I’m 19 years old.
Dawson on Jul 7, 2018
BEST ANSWER: You would need to double check your local laws but according to federal law you can purchase an upper legally. Only the lower requires FFL. This upper is very nice and the hand guard is smaller in diameter than a typical hand guard making it very comfortable for smaller hands.
Can I upgrade the bcg to nickel boron?
Chris k on Jan 13, 2019
BEST ANSWER: Yes you can and it’s on Sale now for 89.99 for the 5.56
Looks cool if you have the stainless barrel too
So the slots at 3, 6, and 9 are M-Lok. What are the slots at the 12 position, between the pic rails? They aren't M-Lok.
OddDuck on Dec 19, 2018
BEST ANSWER: No they are like rounded at the ends n slimmer then mlok. ive never tried but i dont believe jt will work. But there is a newer upper same description, but the handgaurd is different n has mlok at the 12oclk between the 1913 rails, if i find it ill reply it to ya. Its nice, id like to get it next.
Does this allow to mount a light?
Craig H on Aug 28, 2018
BEST ANSWER: Yes, just put any Mlok rail on there and you're good to go
Will this upper fit my Adams arms lower receiver?
Thomas H on May 19, 2018
BEST ANSWER: It should fit any milspec lower receiver.....regardless of brand name...


4.9 / 5.0
66 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awesome deal!
Slapped it on in seconds and had it zeroed in minutes! Unbelievable deal for the price. 500+ rounds in and still running great. Highly recommended.
User submitted image
User submitted image
June 14, 2019
4 months ago
Great barreled upper!
Very recommended barrel assembly. Made out of quality materials, shoots wonderfully, reasonably priced, and looks great. Can’t really find anything to complain about with this. Thanks again!
User submitted image
User submitted image
May 15, 2019
5 months ago
Great upper I've put 300 rnds of American eagle through it and it spit it out with no single hick up love PSA and the price for good quality product
User submitted image
Added Mar 27, 2019
March 27, 2019
6 months ago
great value
This is my first and I paired it with a PSA lower with EPT and a Vortex Strike red dot. Finally had the chance to shoot it and I was very pleased. Red Dot zeroed at 50yds printed about 3 inches high and thinking that is my fault for lak of trigger time and my 68 year old eyes.

I'm already planning my next PSA purchase you can't go wrong with this upper
March 22, 2019
7 months ago
Great upper great deal.
Would like to thank psa for a good quality upper and a good deal.the upper is great guality can best psa deals.will be buy more
From psa looking forward to doing more business.
March 17, 2019
Good value and quality for the money
I recently bought this upper. I love the fact that it came with the Magpul sights. It shoots decent groups and prints about 1.5 - 2 MOA on paper with the iron sights. I've only ran about 350 rounds through it so far, but it seems well put together. Fit and finish were very good, and the functionality was very good as well. No hiccups and no malfunctions. This is a solid upper and is well worth the price.
March 3, 2019
7 months ago
Nice barrel poor quality control.
Really nice and high quality barrel and hardware. This thing didn’t quite function out of the box. However I took the handguard off and notice the gas block wasn’ even tightened down! I aligned everything and tightened the set screw. Come on guys! You made such nice parts please assemble it correctly. Once I aligned the gas block and gas tube which should have been done at the factory it now fires brass and steel without a hiccup.
Psa lower parts kit and Anderson lower
Psa lower parts kit and Anderson lower
February 27, 2019
7 months ago
Solid upper
This upper shot very well right out of the box. Running it suppressed, it was clearly over-gassed, but still functioned flawlessly. I managed some quarter-sized groups at 50 yds with a red dot.
Not a "problem" per-say, more of an FYI: There's not much extra room under the handguard. I replaced the gas block with an adjustable one, and even though the new gas block was "low profile", I had to file it down a bit to make it fit.
February 17, 2019
7 months ago
My first AR addition and I am very happy with it- quality is excellent .
February 14, 2019
7 months ago
Great upper.
Great product, great price. Works as it should!
February 7, 2019
8 months ago

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