PSA 16" Classic M4 Freedom Upper with BCG & Charging Handle, OD Green - 7780181

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PSA 16" Classic M4 Freedom Upper with BCG & Charging Handle, OD Green - 7780181

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Regular Price: $ 399.99

Special Price $ 219.99

Quick Overview

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SKU: 7780181
UPC: 7780181
MFR#: 7780181

16" Barrel Length
5.56 NATO Chamber
1 in 7" twist
4150V Chrome Moly Steel Barrel, Nitride
Carbine-length Gas System
M16 Full Auto Bolt Carrier 
C158 MPI/HPT Bolt
Charging Handle

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Barrel: 4150V Chrome Moly Vanadium steel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine length gas system. This M4 profile barrel is finished off with a standard handguard in Olive Drab Green, F-Marked gas sight base, and an A2 flash hider.

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

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, shot peened, high pressure tested, mag particle inspected, gas key hardened to USGI specifications, fastened with grade 8 screws, and staked per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.  

SKU: 7780181
SKU 7780181
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: 7780181

Questions and Answers

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Browse 18 questions Browse 18 questions and 65 answers
Is the bore of the barrel, the INSIDE of the barrel of this upper, treated with Chrome Moly Nitride??
Harry G on Jul 20, 2018
BEST ANSWER: No, just nitride. The barrel is the Chrome Moly...the treatment is the nitriding, it is both inside and outside.
What's the gas block size?
Nathan on Jul 19, 2018
BEST ANSWER: It has an F marked gas block compatible with detachable carrying handles and back up rear sights. If you are looking to install a free float tube you will have to install a low profile gas block. It is a true carbine length gas tube by the way.
If I bought this along with a complete lower, would this be all I need to have a functional AR?
camss on Jun 16, 2018
BEST ANSWER: or rear sight, mag, and ammo. Go right above and get the ten mags and 300 rds.
Recently purchased this upper. What type of optics or flip sight do you recommend for this rifle?
Raymond H on Aug 13, 2018
BEST ANSWER: I have a mbus open sight on mine which is fine for plinking but I also bought the vortex red dot sold by psa and mounted it for a little more precision A good 3x9x40 is even more precise if you want to be a tack driver it’s a matter of personal preference
will this work with my 5.56 nato stripped lower?
mike m on Nov 25, 2018
BEST ANSWER: Yes it will, but you will have to get a lower build kit or trigger group, takedown pins, bolt and mag release, buffer tube etc.
Is this a “Heavy” Barrel?
John A on Jun 26, 2018
BEST ANSWER: No, description says M4 profile barrel
Can a vertical hand grip be used on this handguard?
ALG on Nov 4, 2018
BEST ANSWER: Out of the box, NO, it cannot. However, Midwest Industries makes rails that are compatible with these hand guards. I bought them and had used them on this model for a while. They make a LONG and a SHORT rail. I believe you can purchase them here.
Can you put a free float quad rail hand guard on this as is ?
Dustin on Dec 21, 2018
BEST ANSWER: No. You would have to remove the front sight and replace the handgaurd aswell for a free floated setup,aswell as a gasblock. I recently did a free float setup on one of these and turned it into dmr setup,and the upper does really well,if you decide to go that route. Hope this helps.
What size quadrail would this take?
James C on May 18, 2018
Will the MOE EPT LOWER fit this upper?
JTsomers18 on Dec 2, 2018
BEST ANSWER: Will fit any mil-spec lower
Can a vertical hand grip be used on this handguard?
ALG on Nov 4, 2018
BEST ANSWER: Yes, with a rail accessory mount added to bottom of the
hand guard.
Does this use round or triangle handguard caps?
Jacko on Aug 8, 2018
Without any adjustments will it fit a 7" handguard quadrail just fine?
Jedominguez63 on Jul 19, 2018
BEST ANSWER: Yes.. it fit perfect
What kind of mounting Barket can I use to add a foregrip? If I can at all?
JTsomers18 on Dec 7, 2018
BEST ANSWER: This is a standard mil-spec set of hand guards. That doesn’t mean you can’t setup forward grips of whatever kind. I’ve used the Magpul rail sections and bolted them onto these types of rails before. It’s not the best setup but it will hold up to normal use.
I have this setup but I want to change the handgaurd to a 15" tactical one in odg any advice?
Jonathan T on Sep 1, 2018
BEST ANSWER: There are so many options for your fore grip it's not even funny. Some go around your front sight and others require removal of it. As far as I know you can do either with tbis upper. It's Mil Spec.
I'm looking to put Boyd's hardwood furniture on an upper. Will this be an issue? Boyd's says specifically that the triangular front caps will not work with their hand guards.
Layne M on May 24, 2018
BEST ANSWER: This upper receiver has round handguard caps, which are compatible with Boyd's furniture.
What part can I not get shipped to my door??
Richard S on Jan 13, 2019
Will this work on a Tennessee Arms lower receiver?
Johnboy on Dec 10, 2018


4.8 / 5.0
40 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Haven't shot it yet but have another one for awhile that works great sure this one will too
January 2, 2019
1 month ago
Great fit with matching lower. Can’t beat the cost for a basic quality AR15.
January 2, 2019
1 month ago
Great quality tight clearances
Great quality low cost but fit tolerances are tight that's a good thing . I tried firing it before taking it apart and lubing it, NOT recommended. The first round fired but only brought next round 3/4 forward, broke it down and found the bolt carrier group was very tight. Cleaned all parts lubed and ran the charging handle a few times an then ran 200 rounds with no issues. Note to self, clean and lubes all firearms even if new.
December 30, 2018
great service
Great product just as described. Will be ordering again soon
December 29, 2018
1 month ago
Great upper,great price
Great setup for the price. I recently went with a free float handguard and this upper really shines now. I have bought about four of these now. Best bang for the buck. Sorry for the terrible pun. Haha
December 23, 2018
1 year ago
Absolutely an Awesome upper
I purchased this upper with the lower parts kit and matched it with a Savage MSR 15 lower and the fit was perfect. All I can say is PSA sales nothing but QUALITY and the shipment time for both purchases was fast, 6 days... Thank you PSA....
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December 17, 2018
Top quality, accurate, reliable, and could ask for nothing more. Extremely great value.
PSA never fails on quality. I have this same rifle from them in black and now this OD. Will go for the DE model next after getting the upper for the AR1 A2 lower I bought.
December 15, 2018
2 months ago
Bought this to add an option to my A1 clone. Much lighter and shoots good. Fits the BCA lower good. Used the Magpul MOE stock kit. It all went together fine. PSA service is top notch.
Bought this to add an option for my A1 clone to make an M4 clone.
With scope.
December 8, 2018
3 months ago
I will buy another PSA upper.
As good as it gets for the price. PSA outsources high end parts (rumor has it). Such as barrels from FN. Their torture test says it all. This upper will not fail.
December 8, 2018
11 months ago
Most Bang for the Buck
This will function/perform on par with the myriad of uppers on the market. That being said, there are better looking options if the price of admission is to be ignored
December 4, 2018
8 months ago

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