PSA 16" Carbine Length CHF M4 5.56 NATO 1:7 Upper  - Without BCG or Charging Handle - 482957

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PSA 16" Carbine Length CHF M4 5.56 NATO 1:7 Upper - Without BCG or Charging Handle - 482957


Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 482957
UPC: 482957
MFR#: 482957

Barrel length 16"
Cold Hammer Forged Barrel
Machine Gun Steel
5.56 Nato Chamber
1 in 7" twist
Carbine Length
High pressure tested
Magnetic particle inspected
M4 feedramps
Forged, flat top upper

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Barrel: A proprietary blend of Hammer forged chrome molly vanadium made by FN that is referred to as "Machine Gun Steel" by virtue of its required use in FN's M249 and M240 weapons.   The hammer forging process work hardens the steel, making it more durable.  In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability.  Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a carbine-length gas system.   The M4 profile barrel  is Mil-spec phosphate coated, High Pressure tested and Magnetic Particle inspected.  Barrel is finished off with an F-marked front sight post with sling swivel, standard handguards and an A2 flash hider.

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

Each upper is assembled to order with US-made parts, and test fired to check gas function.  Does not include bolt carrier group or charging handle.


SKU: 482957
SKU 482957
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label N/A
Free Shipping Qty N/A
SKU: 482957

Questions and Answers

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Browse 6 questions Browse 6 questions and 17 answers
Is this upper available with a 14.5 inch barrel length?
Ozark on Jun 26, 2018
Is the barrel marked PSA or FN?
Zach S on Apr 15, 2018
Is this the same barrel as a spikes chf fn barrel?
David F on Jul 30, 2018
BEST ANSWER: It is just what it says it is. It is rollmarked fn and is the best you can get. Spikes uses some fn barrels. This is the carbine length fn barrel that has better steel and thicker chrome than other barrels. There is not a chrome lined 16” barrel out there that wears better or is more accurate than this one.
Can I swap these hand guards with moe w/o mods?
A. W on May 11, 2018
BEST ANSWER: Yes, that shouldn't be an issue at all.
What is the profile of the barrel?
Rick S on Jun 23, 2018
BEST ANSWER: That barrel it has the government profile type .. it is thin under the handguard..
what size gas block,, .750 ?
jjurca on Apr 24, 2018
BEST ANSWER: Yes, it is standard size .750.


4.9 / 5.0
43 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Just buy one.
Very accurate with my initial tests. No issues shooting suppressed. Would buy again.
October 7, 2018
Upper has a Brass Aluminum forge mark with all the parts installed well. Barrel is marked FN (logo) HF MP 5.56 NATO 1/7. The chrome lining makes it a breeze to clean and zeroed no problem at 50M with a Troy rear sight. Happy Camper!
User submitted image
User submitted image
September 1, 2018
Taper pin holes are done differently but they do the job well.
The barrel upper and handguard look top shelf. But after i got into the pin holes , they weren't tapered they were a step drill type. THE SIGHT IS SOLID so don't take this information as a negative. But us as the consumers believe the tapered is better since the pince are tapered. Other than that this my 3rd chf upper ive bought here and they are tough. And hopefully i get a chance at that M16A4 upper. I always miss the chance.
August 30, 2018
4 months ago
FN Cold Hammer Forged Barrel
The above says it all
Paired it with a BCM lower to make a very rock hard AR
August 19, 2018
5 months ago
Carbine Upgrade
Gave it a good cleaning and swapped it onto an existing lower. Good fit and no issues with clearances, alignment, or rattling. Put rear iron sight from old upper onto it and it took very little tweaking to restore the zero. Cost a bit more than the non-CHF it replaced but I think the touted durability may be worth it. Check back in a couple decades to see if my opinion has changed. PSA: I would really like to buy another of these WHEN YOU GET AROUND TO GETTING THEM BACK IN STOCK!
August 17, 2018
Carbine Build
added: PSA BCG #8779 with forged 7075 CH, Anderson lower (PSA), PSA 7075 buffer, PSA FCG, replaced trigger with BCM PNT trigger (PSA enhanced trigger was out of stock), Magpul SL guard, grip and stock.
Very happy with cost and performance.
Very happy with performance of this build.
Very happy with performance of this build.
July 26, 2018
6 months ago
Upper AR-15
Had to adjust rear sight almost all the way to left to get center. BUT NICE GROUPING Wish you would start selling the M-4 CHROME BARRELS that you used to sell
July 5, 2018
5 months ago
FN CHF CL Barrel
the BEST barreled upper set for duty use around! FN roll marks leave no doubt this is quality.
July 3, 2018
5 months ago
FN Chrome lined goodness
This Upper is awesome! I paired it with a palmetto lower and couldn't be happier. the groups are better then my rifle whose brand rhymes with fifth and resson. I no, I NEED more of these.
June 14, 2018
16" M4 upper with cold hammer forged barrel.
High quality barrel with nice furniture. Good fit and finish. Makes a great foundation for a build.
June 14, 2018
6 months ago

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