PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Upper - With BCG & CH - 5165448422

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PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Upper - With BCG & CH - 5165448422


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: 5165448422
UPC: 5165448422
MFR#: 5165448422


Barrel Length: 16"
Gas System: Midlength 
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
Handguard Type: PSA 13.5" Lightweight M-Lok Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 24.5"
Weight: 4.0 lbs

Add To:

Barrel: 16" 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .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 feed ramp cuts, these 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.

SKU: 5165448422
SKU 5165448422
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: 5165448422

Questions and Answers

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Browse 16 questions Browse 16 questions and 50 answers
What is the total weight on this upper assembly?
Nelson J on May 23, 2018
Weight of this complete upper? (lack of complete info on so many products often keeps me from buying!)
JF090 on May 31, 2018
BEST ANSWER: Then you're not getting one of these for a dopey reason.
Does this come with the premium BCG 8779?
Builder on Jun 9, 2018
BEST ANSWER: All of the "complete uppers w/bcg" I have received do not come with the premium BCG 8779. They are usually shipped with the "basic" model or "freedom" model (what the customer service person said). Even though the basic model is chrome lined and seems to have similar specs, the bolt was stamped "MP" (and no HPT/MP). There was no PSA logo on any of the BCG's that came with uppers, and there were a number of tool marks. The one downside to ordering the complete upper with BCG is actually the charging handle. It is item # 438 so 6061 aluminum rather than the stronger 7075 Milpec charging handle. For most of us, this doesn't really matter (6061 is used in a variety of rails and mounts), but just to add a bit of transparency to what you get.
This upper is the barrel 4140 steel or 4150 ?
Mark R on Jun 15, 2018
BEST ANSWER: If you would read the description then you would know. It took you longer to submit your question than to glance at the specs.
What is the difference between nitride and melonite when talking barrel finishes?
James on May 31, 2018
BEST ANSWER: There is a slightly different process. Essentially the same result, although I have heard that in extreme cases that nitride has slightly more corrosion resistance but for all practical purposes they should work nearly identical.
Can the flash hider be swapped for a comp to make it state compliantly for NJ?
Gabe M on May 31, 2018
Is it mlok on the top rail in between the small pin rails?
Brett on Aug 22, 2018
BEST ANSWER: Yes it is. I put some grip panels there for a thumb over grip. It's a nice option.
God bless! Jeremiah 29:12-13!!
Is the barrel and bolt group made in the USA also?
Spank on Jun 11, 2018
BEST ANSWER: I have asked this question of PSA before and they stated all the AR parts they use are made in the USA.
Which is the better finish; the nitride or phosphate?
Tyler S on Jul 26, 2018
BEST ANSWER: Personally I prefer the nitride finish. I think its more corrosion resistant and is a slicker looking finish. However, it does not match the receiver finish as well. But that's OK. All you see is the end of the barrel so there is no direct reference.
What is the weight as configured?
Trygve V on Jun 8, 2018
This is completely ready to mount to a completed lower?
Andyp91 on Dec 23, 2018
BEST ANSWER: Yes it is. I have 2 of these both mounted on Areo Precision lowers. Both run flawless with every ammo type I've thrown at them. Have only shot them up to 300 meters. With a nice optic, I'm sure they can reach out further accurately. No flip up sights included.
Can this shoot .223?
Moose T on Jan 24, 2019
BEST ANSWER: Yes it can. any AR chambered in 5.56 can shoot both 5.56 and .223, if an AR is chambered in .223 WYLDE it can shoot both. only an AR chambered in regular .223 remington can only shoot .223 remington cartridges.
Is this barrel free floating ?
J W on Dec 8, 2018
BEST ANSWER: Yes. All PSA upper barrels are free floated if they have an aluminum hand rail. The uppers with a plastic handguard are not free-floated.
Can I use the AR-15 lower with AR-47 upper receiver?
Keith J on May 23, 2018
BEST ANSWER: Yes, any mil spec lower will work with an AR47 upper.
Does this handguard style come in a 15" version?
Brett on Apr 29, 2019
Can this be shipped to mass?
Joel W on Jun 11, 2018


4.8 / 5.0
48 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good upper, slightly crooked gas block
Upper feels great and the handguard seems perfect. Only issue is the gas block and gas tube are a few degrees crooked. Doesn't seem bad enough to impair function however. Hopefully it will prove to be a winner when I'm finally able to shoot it.
Upper with MBUS and TRS-25 installed
Upper with MBUS and TRS-25 installed
May 6, 2019
Great product functions as described
March 28, 2019
9 months ago
What's not to like.
I have been doing business with PSA for three years now. They have never dissopointed.
Grate products at grate prices. What's not to like.
December 8, 2018
1 year ago
Great deal even the wife loves it.
This is my third upper from psa. I couldn't be happier mounted a Dagger Defense reflex sight , loaded up some mags and had some fun banging steel . Ordered upper on saturday night and was shooting on wednesday after work . Great products and fast shipping I couldn't ask for more. Time to start saving for the next one.
October 28, 2018
Good quality and surprisingly accurate
I only shot it once with around 90 rounds.
It ran smoothly. I was surprised with it's accuracy. It was holding sub-MOA groups at 100 yards, with regular 55 grain Federal FMJ ammo and a Sightmark 6.5x digital scope. It's too early to make the accuracy statements but I'm happy with the results so far.
October 26, 2018
1 year ago
Great product from PSA
You can’t find a better product at even close to this price.
October 14, 2018
1 year ago
Works and Looks great!!
Only had 1 issue so far. the only issue was the BCG wasnt well oiled when i got it. a little oil and some sighting in the sights and im hitting steel 100yrds away.
October 1, 2018
1 year ago
Just love it for what it is.
I got this due to Price. I'm no gun nut at all. My BCM was $$$. It's been a while since I have used it. But I wanted a 2nd one to sit right next to the other one for just in case.. I really could not be happier. No I don't shoot 100 or 1000 of rounds or any of that. I'm just a dude that hopes nothing happens. I mostly shoot at the water to make a big splash or pop cans. This works just as good as the other one. For what I use it for. I hope I never have to use it for anything else but fun. I'm happy I got this, it was a great price, it's what I expected for the price. Thank you PSA for giving anyone the chance to be able to defend themselves or help thy neighbor or other from harm.
September 28, 2018
1 year ago
Solid built product and GREAT Price!
Good built product, the hand guard is very well made for the price point. Shoots straight and accurate, no issues with it at all, looks great too!
First day shooting it
First day shooting it
September 10, 2018
1 year ago
Amazing functionality and looks awesome!
User submitted image
Added Aug 30, 2018
August 30, 2018
1 year ago

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