ar-15 barreled upper m-lok

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PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Upper - Without BCG or CH - 5165448513

In stock

Special Price $ 219.99

Regular Price: $ 329.99

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: 5165448513
UPC: 5165448513
MFR#: 5165448513


  • Barrel Length: 16"
  • Gas System: Mid 
  • Barrel Profile: A2
  • Barrel Steel: 4150 Chrome-Moly Vanadium
  • Barrel Finish: Nitride
  • 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
  • Hand guard Type: PSA 13.5" M-Lok Lightweight Rail
  • Bolt Carrier Group Included: No
  • Bolt Steel: N/A
  • Bolt Carrier Profile: No
  • Charging Handle included: No
  • Overall Length: 24.5"
  • Weight: 4.0 lbs

Add To:

Barrel:  4150V Chrome moly VANADIUM steel, 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 has a gas nitride finish for accuracy and durabiltly, and is finished off with a .750" diameter low-profile gas block, PSA 13.5" M-Lok Lightweight 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 and Charging Handle are NOT Included

SKU: 5165448513
SKU 5165448513
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165448513

Questions and Answers

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Browse 21 questions Browse 21 questions and 88 answers
Is the top section MLOK?
B lee on Jun 14, 2018
BEST ANSWER: 2” before receiver and 2” before end near barrel are picitany the middle of rail is mlok
Does the handguard have a full length picitany rail (like that of "flattop uppers")?
Trygve V on May 30, 2018
BEST ANSWER: No, it has rail extending out from the upper for a little ways and a section at the end for a front sight. It is similar to the Aero precision atlas
Does the handguard have QD mounts in it?
Terry S on Jun 1, 2018
BEST ANSWER: Yes, each side nearest the receiver.
Is the handgaurd smooth, unlike psa other rails that have sharp edges?
Brett on Jul 7, 2018
BEST ANSWER: This rail has very smooth edges
Is that a freefloat handguard? It looks like one but doesn't say it where is does say it in other uppers.
tom d on May 6, 2019
BEST ANSWER: Yes, it is a free float handguard...and the best looking one they offer. QD ports at the receiver and muzzle. Easy to take on and off if you like to tinker with you AR's.
How hot does the handguard get when fired?
Cody T on Oct 20, 2018
BEST ANSWER: I have fired several 30 mags in a row without the forearm getting hot. The barrel another thing- smoking hot!
Is the forward assist functional? Or is it just for looks?
Wesley on Dec 28, 2018
BEST ANSWER: It is functional. Great upper in my opinion for the price
Is the A2 flash hider pinned or threaded on?
Josh B on Nov 13, 2018
BEST ANSWER: its threaded on.
If you swap it out with something else make sure you put a new crush washer on it.
Does this fit Anderson lowers?
Mason P on May 13, 2019
BEST ANSWER: Any mil spec upper will fill fit a mil spec lower their made to fit any manufacturers Ar parts .the only thing that are different are buffer tubes .
Can this upper shoot .223 as well?
James J on Apr 12, 2019
BEST ANSWER: Yes, you can run .223rem through a 5.56 upper. It’s not recommended to run anything other than .223rem if the rifle is chambered for that specific caliber on the other hand. Plus 5.56nato is a touch less stressful on the wallet too
Does this fit the Anderson Lower ? I have and extra one and want to complete it
Mason P on May 13, 2019
BEST ANSWER: Absolutely does fit. I have quite a few PSA uppers on Anderson lowers that I've built. This complete upper is one of my favorites, handguard is nicely finished, no sharp edges.
Is the gas block for this upper adjustable?
Gian G on Dec 27, 2018
BEST ANSWER: No it has a standard gas block
Since it fires the 5.56, is this a Wylde upper?
Mac N on Jul 8, 2019
BEST ANSWER: This barrel is a chambered for 5.56 and is marked 5.56.
Is this a FN barrel?
Paul E on Apr 18, 2019
BEST ANSWER: I don't think so I usually states it in the description if it is Palmetto State Armory also sees it as a selling point and good advertising so it would definitely say it if it was mine is not.
Can this be had with a 15” m-lock ?
Robert W on Dec 20, 2018
BEST ANSWER: You CAN get a 15" handguard, but not from this listing. You'll have to search PSA for 15" handguards. Or you could buy this and then go buy your own 15" handguard and swap it out.
Is this considered a Premium, Freedom, or PTAC upper?
Cole B on Nov 16, 2018
BEST ANSWER: Definately not ptac. Has the nice nitride barrel that many of the freedom uppers have. But, I found this handguard to be one of the best I've ever had from PSA, no sharp edges, very nicely milled and finished. Buy it, you won't be disappointed.
Is this a Freedom upper?
Shaun R on Jul 6, 2018
BEST ANSWER: Yes it’s laser marked
What bolt carrier and handle does it use?
Papa D on Jun 16, 2018
BEST ANSWER: What bolt carrier and (charging) handle do you WANT to use??? This is the beauty of the MIL-SPEC AR platform. EVERY BCG and charging handle will work with this upper...
I have an M&P sport and was wondering if I can just use the lower and bcg and just slap it in this upper? I was also worried about the mid length system with the original buffer which I believe is carbine length?
Sloth on Jul 31, 2019
Does the handguard use a special barrel nut, or does it use the same barrel nut as what PSA's A2 FSB styled uppers?
Martin M on May 10, 2019
Two questions. The "A2" profile barrel, is it smaller diameter between receiver and gas block than from gas block to flash hider? What is the MLok handguard made of (extruded, t6 alum., etc?) Thanks
William on Jul 14, 2018


4.9 / 5.0
56 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Couple minor blems/issues but overall great value for price
All in all seems like good, solid well-assembled upper group, especially for price. Haven't had chance to test at range yet, and will update review accordingly. A minor blemish here and there. The upper receiver looks like had a rear iron sight attached, as if it was possibly returned, a blem or 2 on the mlok rail, and then, if I even breathe in the ejection port door, it opens.
User submitted image
Added Aug 9, 2019
August 9, 2019
1 month ago
I'm very pleased with this upper. With the light weight hand gaurd, the over all look is great. Three thumbs up!
July 11, 2019
3 months ago
Handguard problems
Would give 5 stars but the free float hand guard sildes forward after just a few rounds. No matter how much I tighten it (so tight i fear shearing the bolts) it still inches its way forward.
July 10, 2019
3 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
July 16, 2019
Casey S
Love this build.
This whole build is Palmetto and is freaking awesome. Dressed her up with magpul FDE furniture and Amend 2 FDE mags (perfect color match). Shoots great. Another great build with bad ass Palmetto components. Thank again guys for the great products.
All dressed up
American Made
July 2, 2019
3 months ago
Quality Upper
Excellent upper. It matched right up with my Anderson lower. Good quality and good looking. Put 10 round through it with no problems. I highly recommend this upper..
June 25, 2019
3 months ago
Good as advertised !!
June 23, 2019
3 months ago
Fantastic upper
This was my first AR 15 build. This upper is great for the money. The barrel is very accurate and light. I was coming from an AKM background. The handguard does a great job of not getting hot . I will be building my next ar pistol with Palmetto State armory parts.
My AR next to my friends lol
My AR next to my friends lol
June 18, 2019
3 months ago
Overall outstanding upper for the price, will be purchasing from Palmetto State Armory again !!!
Love it, looks good installed it on a Anderson lower and was a perfect fit, extremely accurate at 100 yards haven’t shot It beyond that.
June 14, 2019
4 months ago
Excellent Buy!
All as stated. Quick ship! No issues!
June 8, 2019
3 months ago
great upper for the price,
so far I have put two ammo cans through this upper, I think around 450 each can, everything is holding up great, I'm using a light weight BCG with a silent spring, it makes a nice little clang when going into battery now. I honestly thought something would start to fall a part or screw loose here or there, but nothing. in all honesty, I don't see the need to pay for 200 dollar plus handguard, for 60 more you get the complete upper and this thing looks just as good as any Midwest industries or any other option out there. I did run this upper on my last trip with my old bump stock before the law changed and I lost it on that fishing trip, you do feel the heat when rapid firing.
June 5, 2019
1 year ago

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