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PSA 20" Rifle Length 5.56 NATO 1:7 Nitride Freedom Upper - No BCG Or Charging Handle - 516445940


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: 516445940
UPC: 516445940
MFR#: 516445940

Barrel Length: 20"
Gas System: Rifle Length 
Barrel Profile: A2 Style
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
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: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle Included: No
Overall Length: 28"
Weight as Configured: 3.5 lbs

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Barrel: 20" Chrome Moly vanadium steel, chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a rifle length gas system. The A2-style profile barrel is nitride finished for accuracy and durability. Barrel is finished off with an .750" diameter F-marked Front Sight Base, PSA Classic Handguards, and an A2 flash hider.

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

**This upper does NOT include BCG or Charging Handle

SKU: 516445940
SKU 516445940
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 516445940

Questions and Answers

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Browse 12 questions Browse 12 questions and 40 answers
Does this upper # 516445940 have a triangle or round hand guard cap ?
Tyler G on Jun 27, 2018
BEST ANSWER: There appears to be a division on what style hand guard cap that comes with this upper. Mine came with a triangular cap which made me happy as I wanted to install triangular hand guards. I bought some aftermarket hand guards from a well-known parts supplier and they fit with NO problems whatsoever; if you know how to install them.
would this upper be classified as Hbar?
thomas b on Jul 22, 2018
BEST ANSWER: No, not HBAR, which would be a uniform diameter from the chamber forward. This is an A2 "profile" meaning it is actually a smaller diameter from the chamber to the gas block than the diameter forward of the gas block. I bought this configuration because I knew this rifle would be excessively heavy for my purposes and that the A2 profile would be somewhat lighter.

If a HBAR barrel is what you are looking for I believe this upper is available in that configuration. It's just not what you are currently looking at.
Will the BCG and charging handle from the 16" upper shown here be usable in the 20" of this listing?
Hollinger on Mar 24, 2019
PSA 20
PSA 20" Rifle Length 5.56 NATO 1:7 Nitride Freedom Upper - No BCG Or Charging Handle - 516445940
PSA 16
PSA 16" 5.56 NATO 1/7 M4 Nitride Classic Gray Freedom Upper - With BCG & CH - 5165447990
BEST ANSWER: Yes no issues
If I buy a spa bcg, will it drop right in and I can go shooting? Or do I need to do anything additional?
Sheldon C on Jul 2, 2018
BEST ANSWER: Psa bcg will work perfectly.
What is a compatible hand guard for the triangular cap models?
Martin Luther King on Feb 11, 2019
BEST ANSWER: Any sramdard a2 style hamdguard should work. Just check in the description of the handguard you want to be sure it fits the triangular fittings.
Could I purchase this upper with out the hand guard and delta ring???
tubbz t on Nov 12, 2018
BEST ANSWER: No. PSA only sells this upper with the hand guard and delta ring.
can i get this without the hand guards? i'm building a m16a4
Bill H on Mar 29, 2019
does this contain muzzle break or flash suppressor, need to purchase new jersey compliant ?
Vince on Mar 24, 2019
BEST ANSWER: Looking at the picture of the upper, it appears to come with a bird cage flash suppressor.
Would a Del Ton Ar 15 5.56/ 223 bolt and charging handle fit and work in this upper?
Thank you
Ernest G on Oct 15, 2018
BEST ANSWER: Yes. Any standard AR15 bolt and charging handle will work. If it’s an old bolt however, consider buying a new one.
Would there be a problem using this upper on an M4 lower with 6 position collapsible stock? Just wondering if the rifle length gas system would have a problem with the shorter stock
Ric D on Oct 2, 2018
BEST ANSWER: Will work fine
What is the length of the handguard?
GioDez on Mar 28, 2019
Why does this upper not accept any upgraded Mil-Spec charging handle ? I bought a BCM ambi CH and it would not fit. Just received a BCG and CH "PSA" brand combo. BCG works, but the CH is still to wide? This upper should accept most charging handles.
Edward O on Aug 29, 2018


4.8 / 5.0
47 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Sloppy Blemished Dud Upper.
The receiver was loose and needed an Accu-Wedge. And the receiver wasn't T-marked like the decription listed. I sent it back and when I got it the barrel was scratched and the flash hider was also scratched up with lots of bare metal exposed. It would've quickly rusted up here on the coast. And the sling mount was crooked and scratched up with bare metal exposed. Long wait time to get my refund. Not a happy customer.
July 23, 2019
2 months ago
Could not be happier with this upper shot about 200 rounds performed great
June 8, 2019
4 months ago
It functions like its supposed to I will be ordering another one soon
I love the PSA 20" A4 upper
I love the PSA 20" A4 upper
June 6, 2019
4 months ago
Very serviceable
I have put about 300 rounds through this upper. There were no issues at all. This shoots smoothly and cycles in a regular way. All the ejected brass goes to virtually the same spot. This gun got a mil-spec carry handle for the rear sight but my eyes are not what they used to be (apparently). I was shooting about 1.5 inch groups at 50 yards which would qualify for mil-spec (I think). The real issue was that I could not see well enough to see the target clearly so was sort of aiming at an orange blob. I will be putting a scope on this shortly and will update the shooting data when I can actually see the target. All in all I was very happy with how the gun performed. This is not a feather weight rifle. While it seems heavier than what we had in the service, it does have a different hand guard which is comfortable. I may try the triangular hand guard but only because I am old. The one on the gun was fine for me. My youngest son who is recently out of the USMC also fired this gun. He was impressed with how smoothly it shot and the difference in the felt recoil between this and his gun (also a PSA). His is quite a lot shorter and has one of those fancy handguards that look like part of a rocket ship.
June 5, 2019
4 months ago
Great upper for a 20" M16A2 style build.
The upper fits my A2 PSA lower perfectly. I put a A2 carry handle on it and I use it for open sight at 100-500 yards. It came with a forged upper receiver with a square forge mark. It shot well with 55 and 62 grain ammo.
June 1, 2019
4 months ago
Satisfied with PSA!
This is my very first PSA purchase, I just could not resist a sub $200 upper and the PSA positive hype (which is true by the way). I purchased this for use with a 22 conversion kit. surprisingly the 22 kit carrier fit in all of my other well known brand uppers except this PSA upper, as if some dimension/spec was too tight, that was disappointing, it would not fully insert into the receiver even with substantial pressure. I called cmmg tech and they sent a new carrier chamber adapter - once swapped it allowed the kit to fit properly in the psa receiver. Functions perfectly with the kit on a rr nm lower. Build quality is very good +++ to excellent. Wasn't sure about the nitride finish but I like it, being used to standard parkerized or parkerized looking finishes that everyone else offers as the default standard.

I must admit I was an "AR Snob" before this purchase. I am now a PSA fan and repeat customer. They are fulfilling a market nitch for the entry level, budget, and hobbyist builder ar guys. Great job PSA, just admiring my second upper that arrived today - wow!!!
May 29, 2019
PSA 20" Upper
Used in AR build with Nickel Plated BCG. Works and shoots well.
May 24, 2019
1 year ago
Love it. Makes for a very solid dmr build
I’m overall impressed with the build quality. The accuracy is about the same as a mil spec m16 or m4. On mine I dropped in a zero fail bcg and a standard charging handle. I’m getting about 1.5 to 2 inches at 100 meters. Which is all I realistically need. Overall a really awesome upper for the money. Will post a pic when I finish turning it into my dmr.
User submitted image
User submitted image
May 22, 2019
5 months ago
Great out of the box for Iron Sight shooting
Great Quality for the price. I wanted to do a simple A2 style build for Iron Sights. The barrel did a very decent job with 55gr lake city fmj ( federal surplus ammo) producing a 2 inch groups at 100 yard range. Switched to the 62gr Federal and produced a 1 1/4 inch group. So for Iron sights and my age I am very pleased overall. The best group came with Winchester Supreme 55gr ammo producing a 7/8 inch group. Only complaint if any is the the front sight post on my sight was way to high, maybe that’s production or their preference for the shooter to adjust.
May 15, 2019
5 months ago
Great rifle. No issues with mine
Psa 20" with usgi surplus furnature
Psa 20" with usgi surplus furnature
April 19, 2019
6 months ago

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