Due to higher than average order volume, please expect shipping times to be delayed up to 10 business days. Please expect longer wait times for Serialized items (FFL required).
Due to higher than average order volume, please expect shipping times to be delayed up to 10 business days. Please expect longer wait times for Serialized items (FFL required).
cold hammer forged barrel slanted upper

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PSA 10.5" CHF 5.56 NATO 1/7 12" Slanted Upper Without BCG or CH - 5165448688

In stock

Special Price $ 419.99

Regular Price: $ 589.99

Quick Overview

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 5165448688
UPC: 5164448688
MFR#: 5165448688

Barrel Length: 10.5"
Barrel Profile: A2
Gas System: Carbine Length
Barrel Steel: Cold Hammer Forged Chrome Moly Vanadium 
Barrel Finish: Phosphate
Chrome Lining: Extra Thick
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: PSA Fluted Flash Can
Receiver Material: Forged 7075 T6
Receiver Type: M4
Hand guard Type: PSA 12" Slant End M-Lok Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle included: No
Overall Length: 21"
Weight as configured: 3.45 lbs

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BarrelBarrel: A proprietary blend of Hammer forged chrome molly vanadium made by FN that is referred to as "Machine Gun Steel" by virtue of its 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 rate, M4 barrel extension, and a carbine length gas system.  Barrel is high pressure tested, and magnetic particle inspected to ensure quality and dependability, and is finished off with a PSA 12" Slant End M-lok Rail, a low profile gas block and a Palmetto State Armory Fluted Flash Can.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.

Flash Can: Palmetto State Armory Fluted "FLASH CAN". This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward, threaded 1/2-28, and black military-style hard anodizing. THIS DEVICE IS NOT DESIGNED TO REDUCE RECOIL, MUZZLE RISE, OR FLASH SIGNATURE. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon's appearance.

SKU: 5165448688
SKU 5165448688
Brand Palmetto State Armory
Department Uppers
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: 5165448688

Questions and Answers

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Browse 12 questions Browse 12 questions and 17 answers
What's the difference between a chf barreled upper vs. a premium chf barreled upper?
Shaun C on Jul 11, 2018
BEST ANSWER: I believe PSA premium means the barrel has a mil-spec phosphate finish, opposed to nitride. I'm not 100% on that though, going off of the main difference of their other products that are labeled "premium"
Anyone know how often this comes back in stock?
S D on Sep 14, 2018
When will this be back in stock?
Joshua J on Mar 24, 2019
BEST ANSWER: Still waiting as of 10/28/2019
What good is your "FLASH CAN" if it doesn't hide the flash???
Can I buy this upper with a Vortex flashider?
Tom L on Aug 27, 2018
BEST ANSWER: It's not a flash hider... it directs the flash forward.
How long is the flash can ? Also I would like to run this upper suppressed, will a suppressor fit inside the guards in place of the flash can?
RON C on Dec 27, 2018
BEST ANSWER: You probably could run a suppressor on it, but it would depend on the size. The rail is pretty narrow vs something like a POF. The flash can does not have a way to unscrew without taking off the rail. The flash can is about three inches. I have suppressors and don’t even bother putting them on this upper. I bought it for the shorter maneuverability and lightweight of it. It’s not even that loud compared to an AR with a muzzle brake. Unless you’re going to be running it indoors don’t worry about the suppressor IMO.
how much of a difference does the CHF barrel make than 4150V Chrome Moly Vanadium in the upper thats identical to this one?
cristofer c on Jun 21, 2018
BEST ANSWER: CHF just ads more longevity to the rifle, as it is designed to take more stress under sustained fire conditions. It is made of "Machine Gun Steel."
Is the gas block on this upper pinned?
Mike B. on Jun 20, 2019
BEST ANSWER: It's not actually "pinned", but it is dimpled with two set screws...I don't think it'll be an issue. I also have a BCM upper, which in my opinion is the best you can buy, and it also is dimpled with two set screws...Not pinned. Both have been outstanding performers.
Can i fit a "SUREFIRE WARCOMP FLASH HIDER" in place of the flash can ?
Harry O on Jun 29, 2019
BEST ANSWER: I might damage the rail.
What is the inside diameter of the free float hand guard.?
mike z on May 4, 2019
i bought one of these used it only marked "5.56 nato 1:7" was sold to me as CHF is this correct?
chris d on Jan 20, 2019
BEST ANSWER: The CHF barrel should have the FN stamp on it.
Is this barrel entirely chrome lined?
Joe D on Jun 29, 2018
BEST ANSWER: Yes this barrel has the proprietary FN complete chrome lining. From the description: "In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability."
Does this upper have T marks?
Kevin J on Feb 15, 2020
BEST ANSWER: This upper does Not have any T" Marks.


4.5 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Fires Every Time!!!
Never One Issue...!!!!!
F N Barrel  is Great!!!
F N Barrel is Great!!!
February 28, 2020
3 months ago
Excellent pistol solution. Excellent fitment with a Daniel Defense lower.
October 12, 2019
7 months ago
Best deal for the money, great upper!
Looks great, works great! Pretty decent shipping (about a week). Will be buying from PSA again for sure!
August 16, 2019
9 months ago
Cant beat it!
Couldn’t be more impressed with this upper. Fit and finish is great. Barrel Is FN stamped. Rock solid.
June 20, 2019
10 months ago
Blem Blemmy Blem
Deep scratches on barrel and hand guard. Already in contact with customer service.
May 1, 2019
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
May 1, 2019
Casey S
If you are going to build 1 do it right cold hammer forged is the way to go
User submitted image
Added Mar 18, 2019
March 18, 2019
1 year ago
Was consistently accurate at about 50 yards even after the barrel got nice and hot. Well worth the money!
Was consistently accurate with rapid fire at about 50 yards. Well worth the money!
Was consistently accurate with rapid fire at about 50 yards. Well worth the money!
February 25, 2019
1 year ago
Good barrel, meh upper
Good barrel, handguard, and muzzle device. The upper itself is doen't seem milspec in that it is loose fitting on all my quality lowers.
February 16, 2019
1 year ago
Awesome Build
Paired with PSA lower build kit. Had a little wobble that a stencil cut out at the front pin took all the play out. No issues after 500 rounds. Runs flawless.
User submitted image
User submitted image
February 16, 2019
1 year ago
Hey Family ,
Im always so pleased with PSA , Price Quality, Service . It Represents Freedom , where Value an Quality met . Own one today , or wish you did . For any , an all my needs , I seek Palmetto State Armory 1st . Good news , build it how you want it , How do you want it ? Got PSA ? Own one today .
User submitted image
Added Dec 27, 2018
December 27, 2018
1 year ago

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