16" mid-length barreled upper assembly

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PSA 16" Mid-length 5.56 NATO 1:7 Nitride Freedom Upper - with BCG and CH - 507281


Quick Overview

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

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 www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 507281
UPC: 507281
MFR#: 507281

16" Barrel length
4150V Chrome Moly Vanadium Steel
5.56 Nato Chamber
Melonite Finish
1 in 7" twist rate
M4 Feed ramps
F-Marked Front sight post
A2 Flash Hider
Sling Loop
Standard Hand Guards
Forged Upper Receiver
M16 Bolt Carrier Group
9310 Bolt
Charging Handle

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Barrel: Chrome-moly vanadium steel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The A2-style profile barrel is Melonite treated for accuracy and durability. The barrel is finished off with a .750" diameter F-marked front sight base 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 M4 feedramp 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 9310 steel. Gas key is secured with grade 8 fasteners and staked. The bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.


SKU: 507281
SKU 507281
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 507281

Questions and Answers

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Browse 54 questions Browse 54 questions and 177 answers
Wouldn't the barrel profile be considered a heavy barrel for this upper? (Maryland compliant question)
Hayden O on Apr 21, 2018
yes I live in the great state of Maryland and its compliant with our gun laws for heavy barreled AR's. Just had one delivered last week.
I'm waiting for this to come in. However I'd like to buy a quad rail in stead for the plastic, what drop in quad rail will fit this upper?
Brinks on Apr 26, 2018
BEST ANSWER: knights armament and midwest industries both offer drop-in replacements.
legal In California because of shorter than 16" barrel?
Jason T on Oct 5, 2018
BEST ANSWER: The barrel measures 16" in all states.
Does the barrel profile stay the same diameter throughout, or is it thinner under the handguards ?
Arthur F on Aug 5, 2018
BEST ANSWER: It has a government profile barrel. It is slightly thinner under the hand-guard.
Us this upper compatible with the .223 rounds?
Chris on Jul 6, 2018
BEST ANSWER: Yes. Any 5.56 NATO barrel will be compatible with .223. Do not use 5.56 NATO with a .223 barrel, however.
Could this upper take a different hand guard?
Chris on Jul 7, 2018
BEST ANSWER: While mid-length handguards (8.5") are not as prevalent as carbine length (7") equivalents, there is nothing unusual about this setup that would prevent a drop-in replacement. There are also a few handguards that call for the triangular hand guard retainer - those will not work here.

If you want to free float it, you'll just need proper tools to remove the delta ring, barrel nut and front sight block.
Can you shoot 223 and 556?
Jimg1215 on Dec 28, 2018
BEST ANSWER: Yes you can. You can shot .223 in a weapon chambered for 5.56. BUT should not shoot 5.56 in a .223 weapon.
Does this product come with front sight adjustment key?
James Y on Mar 3, 2019
BEST ANSWER: No it don't you can get them very easy. or you can use a small pin to push down on the locking pin and use needle nose plyers to turn the sight. I hope you enjoy your at as much as I do mine.
Is this a wylde barrel? Or 5.56 only?
Navor G on Dec 28, 2018
BEST ANSWER: This barrel is marked 5.56. The accuracy using standard .223 ammo isn't that of what a wylde barrel would be but it will still fire .223 or 5.56.
Does it come with firing pin ?
Thomas T on Feb 1, 2019
BEST ANSWER: yes...with BCG means it has a bolt carrier group so firing pin is in bolt for sure with these...ch means charging handle...so this has both just snap onto any AR lower and you are ready to go
Can this plastic hand guard and front site be removed and replaced with a quadrail and alternate site? or is the front site part of the gas block? Thank you
Rockie R on Jan 4, 2019
BEST ANSWER: I didnt do anything to it i wanted to keep the regular set up but with the right know how i believe you can change it out.
Does this specific setup come with the round or triangle cap?
Michael N on Mar 1, 2019
BEST ANSWER: Comes with the Triangle cap that is standard for most midlength uppers
is this an FFL item?
steve m on Feb 28, 2019
BEST ANSWER: No it is not... a FFL item would be the lower receiver which has the serial number stamped on it much as if you were purchasing a complete rifle or handgun
With this upper; what else do I need for a build? This will be my first build.
Michael E on Jan 3, 2019
BEST ANSWER: You will need a complete Rifle lower and a rear sight and at least one magazine to have a complete rifle.
Will a carbine build kit work with this.?
Gary R on Dec 29, 2018
BEST ANSWER: Yes, it will work with just about all AR-15 lowers. This is a very nice upper and I could not be happier with it. It is a mid-length which means it cycles a fraction slower then the carbine length upper. You will never be able to notice the difference in cycle time and it is somewhat easier on the lower.
One person said triangle cap, other said round cap for hand guard. Which one does it have ?
clay p on Aug 21, 2018
BEST ANSWER: I purchased 2 of these and they both have triangle caps.
Recommendations for a rear flip up sight ?
greg z on Apr 30, 2019
BEST ANSWER: https://palmettostatearmory.com/midwest-industries-combat-rifle-rear-flip-sight-mi-crs-r.htmlEnter an answer to this question.
Is this a Complete Upper that needs nothing other than a lower to complete?
Kenneth I on Apr 29, 2019
BEST ANSWER: Yes. These are complete upper units. You can purchase a scratched or what they call a scratched l assembled lower and with this upper, have a complete AR for very little cost.
Does the front sight marked “F” come with the blade/pin threaded into it? Or do I need to purchase separately ?
Reid M on Mar 3, 2019
BEST ANSWER: It comes with it
Is the BCG full auto?
Robert W on Dec 27, 2018
BEST ANSWER: Yes it is. But i hope you realize that doesn't mean your rifle will fire in full auto unless your lower is designed for that function.
Does this have built in sights or do you need to buy optics in addition?
Kenny A on Nov 23, 2018
BEST ANSWER: Enter an answer to this question.I chose the A2 carry handle (milspec). Holds zero, easy to set up, and looks great. I would have gotten one from PSA but they were out.
I got one from UTG. Still milspeck (copper aluminum foundry mark (square).
round or triangle front handguard retaining cap?
EspoMan E on Jun 15, 2018
BEST ANSWER: It’s a triangle retaining cap.
Is this upper black?
Alex a on Apr 23, 2019
BEST ANSWER: Yes as black as my wife’s heart.
Will This Upper fit my PSA AR-15 Complete Classic Lower - No Magazine - 7244 ?
MICHAEL R on Feb 10, 2019
PSA 16
PSA 16" Mid-length 5.56 NATO 1:7 Nitride Freedom Upper - with BCG and CH - 507281
PSA AR-15 Complete Classic Lower - No Magazine - 7244
PSA AR-15 Complete Classic Lower - No Magazine - 7244
BEST ANSWER: The upper will fit that lower just fine. Mine went together with zero issues. Hope this helps.
I bought this upper and have the psa classic lower an it fits really loose and lines do not match up does anybody else have same preoblem?
Zach J on Jan 13, 2019
BEST ANSWER: I purchased 2 of the uppers that I was going to use with 2 80% lowers that I had milled out. one of them seemed to be out of line, and I could not pull the bolt carrier back. it seemed to be hitting something. I tried another lower and it worked fine. my problem was either the lower or the upper. try your upper on another lower to see if that might correct the problem.
Why does this look like the m4 upper is this the wrong picture for the upper you get? 🤔
Zach J on Dec 27, 2018
BEST ANSWER: actually it's not the correct picture.this barrel will be cut down behind the flash suppressor about an inch,unlike the one pictured
What color is the hand guard ?
Thad007 on Nov 19, 2018
BEST ANSWER: Mine was Black.
What is the thread pitch for muzzle device?
Tommygun48 on Mar 12, 2019
BEST ANSWER: I believe it should be a 1/2-28 thread
Anybody know where I can get a better hand guard for this?
Zach J on Jan 13, 2019
BEST ANSWER: I put a magpul hand guard on it. Just make sure you get one that is a mid length gas system length. Any hand guard that is compatible with the D ring attachment will work. If you don’t have the wrench to remove it is a two person job.


4.8 / 5.0
193 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Best AR15 Upper for the price
Didn't want to write a review until putting some rounds down range. 300 rounds later I could not be happier. Paired this with my PSA lower for for a complete AR15 with optic for under $400. These guys know what they are doing! You can't go wrong with PSA. Also purchased ammo and mag combo, Wow!
June 18, 2019
PSA Freedom upper PSA classic Freedom lower 100% American made thanks PSA
Shot a hundred rounds through it very smooth action I highly recommend this AR
June 16, 2019
1 month ago
Money well spent, worth every dollar and more. Safety 1st
Ready for add-ons
Ready for add-ons
June 8, 2019
2 months ago
very pleased with it mates to Anderson lower and parts kit .shoots better than the shooter.
June 6, 2019
2 months ago
Fantastic deal
Fit and finish are fantastic, everything fit my lower as it should. Best bang for the buck on any rifle yet.
finished product
finished product
June 6, 2019
2 months ago
Not disappointed. It shoots well with 223 and 5.56. I even fed it some old rusty ammo found in a used car.
May 21, 2019
1 month ago
great upper
God bless Palmetto State Armory
May 20, 2019
1 month ago
Very Very pleased....Wish I heard about palmetto a little sooner.
First I have to say Palmetto definitely has deals. I was in the market for an ar 15 but I wasn’t gonna spend 900 plus for one. Bought this upper and the complete lower for under 400 bucks.

Now I have shot the complete rifle approximately 100 rounds and no malfunction whatsoever. This is my first one I changed the Handguards and added a red dot. Gun was very accurate groups were tight with a little tweaking. My only thing was I keep hearing that the recoil is light but it definitely has a little punch to it.. plan on changing the weights and spring and I changed the charging handle as well. Got this on sale when I first saw it I was going to buy it and it sold out the minute it came in stock I grabbed it. You can buy and always upgrade but to get into a rifle especially this caliber it’s a no brainer.
May 20, 2019
2 months ago
Great purchase!
Great product at a great price! Very pleased with this purchase and intend to buy my next build from PSA.
User submitted image
Added May 18, 2019
May 18, 2019
3 months ago
Not very happy 3 stars
Was suppose to come with chrome line bolt carrier and came with a cheap freedom bolt carrier not very happy ! Last one I ordered had promise bolt carrier ! This is not chrome lined inside like add says !!
May 17, 2019
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
May 20, 2019
Casey S

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