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).
PSA 20" CHF 1:7 A2 Rifle Length 5.56 NATO Premium AR-15 Upper Assembly - with BCG, CH, & Carry Handle

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PSA 20" CHF 1:7 A2 Rifle Length 5.56 NATO Premium AR-15 Upper Assembly - with BCG, CH, & Carry Handle

In stock

Special Price $ 529.99

Regular Price: $ 629.99

Quick Overview

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: 5165450744
UPC: 5165450744
MFR#: 5165450744
  • Barrel Length: 20"
  • Gas System: Rifle Length 
  • Barrel Profile: A2 
  • Barrel Steel: "Machine Gun Steel" barrel
  • Barrel Finish: Phosphate
  • Chrome Lining: Extra thick chrome lined including chamber
  • Muzzle Thread: 1/2-28
  • Chamber: 5.56 NATO
  • Twist Rate: 1 in 7"
  • Barrel Extension: M4
  • Diameter at Gas Block: .750"
  • Gas Block Type: F-marked Front Sight Base
  • Muzzle Device: A2 Style
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Handguard Type: PSA Classic Handguards
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: 158 Carpenter
  • Bolt Carrier Profile: Full Auto
  • Charging Handle Included: Yes
  • Includes: PSA Carry Handle Assembly
  • Overall Length: 28"
  • Weight as Configured: 3.6 lbs

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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 rate, M4 barrel extension, and a rifle length gas system.   The A2 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.

BCG: Bolt is made of Mil-s\Spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. 

Includes: PSA Carry Handle Assembly

SKU: 5165450744
SKU 5165450744
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: 5165450744

Questions and Answers

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Browse 9 questions Browse 9 questions and 25 answers
Can you ship this to California?
Rico d on Oct 5, 2019
PSA 20
PSA 20" CHF 1:7 A2 Rifle Length 5.56 NATO Premium AR-15 Upper Assembly - with BCG, CH, & Carry Handle
PSA 20
PSA 20" A2 Rifle Length 5.56 NATO 1:7 Nitride Freedom Upper With Carry Handle Assembly W/ BCG and CH
BEST ANSWER: according to Nancey, this causes cancer in California.

good day
This upper assembly is advertised as an A2 upper but the photo shows a detachable carry handle (A3) receiver. Is this an A3 M16 upper clone then?
Dave M on Apr 26, 2019
BEST ANSWER: This upper features an M4 (A4) upper receiver with detachable carry handle as it states in the specs. A2 refers to the barrel profile.
Is the gas block pinned?
Hawkman on Feb 6, 2020
BEST ANSWER: Enter an answer to this question. It has a fixed front sight, which is also the gas block, so of course it’s pinned.
Is this barrel marked with CHF or FN markings?
John M on Feb 2, 2020
BEST ANSWER: Yes, it is laser etched with the FN Oval and "HF MP 5.56 NATO 1/7".
One can only assume it is govt profile?
Sean T on Nov 4, 2019
BEST ANSWER: Yes, the barrel is cut to standard A2 government profile specs. Only difference is that it is cold hammer forged (with extra-thick chrome lining), and the end where the flash suppressor is attached doesn't have the slight relief cut around it for use with certain out-dated sound suppressors (modern suppressors do not require the relief cut).
do the handguards have a heat shield?
Roy T on Aug 20, 2019

Yes, it does.

(Name of Employee Removed)
Palmetto State Armory Customer Service
What is the bcg finish?
that g on Feb 17, 2020
BEST ANSWER: Nitrided...
Can you ship this to Connecticut?
Todd S on Mar 27, 2020
BEST ANSWER: It should. Lowers are a big issue.
Will this fit my Mmc lower receiver?
Shawn perez on Mar 18, 2020
BEST ANSWER: It should.


4.4 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
The psa 20" Premium upper assembly
The upper fit perfectly and perform perfectly on the range. This was my first ,I plan to put another together in the future.

March 7, 2020
2 months ago
A2 upper
Great quality accurate out of the box very pleased
February 28, 2020
2 months ago
Premium upper with nitrided parts
Just opened my new upper premium 20” NATO upper today and I see it’s got a nitride bolt carrier and nitride flash hider. My assumption forking out the extra money for the Premium upper was that the BCG would be the premium phosphated model and not the nitrided part. The blue flash hider just looks bad and was not what I expected on the premium model. Called customer service and was informed that they ship with these items standard. Maybe it works good but c’mon...
Nitrided bcg
Nitrided bcg
February 20, 2020
1 month ago
Better than I expected.
M&P lower. Nikon P223 scope. Outstanding rifle that exceeded expectations. Decent groups. This rifle is stout. Doesn’t feel like a toy.
Colt toy gun.
User submitted image
100 meters
Heavy FN Barrel
M&P Lower
February 3, 2020
7 months ago
Nice 20” upper
Used this to build an A2 style rifle, even though it has a detachable carry handle (which I was aware of) it still looks great and so far has ran about 300 rounds flawlessly.
January 10, 2020
Great quality upper. Worth the extra in the long run for the chrome lining.
November 5, 2019
7 months ago
Great upper for the money
Used this upper assembly for a "Woodie" build on a PSA Minuteman lower. Rifle shoots great and is more accurate than I am currently. Took off 1 star as the A2 front sight is either just a little off or my eyes are crooked but zero for me at 100yd is about 10 clicks right, but it hits the same spot most everytime.
October 15, 2019
I would highly recommend, especially for the price!
October 14, 2019
7 months ago
Excellent product. Exactly what I wanted for my budget. I’ll continue to purchase other things
October 2, 2019
8 months ago
Not premium
Was not happy when I opened the box. The A2 flash was not timed correctly and was bright blue (Nitride?) and stuck out like a sore thumb. The delta ring was the same glossy blue, obviously left over "Freedom" parts. The receiver was milled incorrectly, one side wall was almost twice as thick as the other. Finally PSA decided that a nitride BCG was good enough for an FN barrel. With that being said I should have sent it back before I cut the "tamper tie strap".
Now its just overpriced spare parts.
Uneven walls
Shiny Flash not timed on phosphate FN barrel, might as well be orange.
Shiny delta ring against hard coat.
August 23, 2019
7 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service with your order number so we may resolve this issue.
August 26, 2019
Casey S

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