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


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
SKU: 7780181

Questions and Answers

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Browse 9 questions Browse 9 questions and 23 answers
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
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
Is this a “Heavy” Barrel?
John A on Jun 26, 2018
BEST ANSWER: No, description says M4 profile barrel
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
Without any adjustments will it fit a 7" handguard quadrail just fine?
Jedominguez63 on Jul 19, 2018
BEST ANSWER: We installed a KAC M4 RAS drop in rail and it fit perfect.
What size quadrail would this take?
James C on May 18, 2018
Does this use round or triangle handguard caps?
Jacko on Aug 8, 2018
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: I'd say that is true I think you have to have the Triangular Hardware for that type of upper


4.7 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Nice upper
Nice upper would buy again great price.
August 13, 2018
1 month ago
Wonderful m4 profile upper pkg
Great deal! Shoots good too (aprx 2 moa with 55gr and about 1.5 moa with 69gr). Very happy.
July 29, 2018
2 months ago
Great place to start
I would absolutely suggest this it is basic bit a great functional platform to start any build with. Shot great right out of the box
User submitted image
Added Jul 28, 2018
July 28, 2018
1 month ago
Basic upper for great price.
I bought this upper for a “truck gun” I was building. Put it on my lower, test fired and was hitting close to moa. For the price you can’t get a better deal.
Krylon painted.
Krylon painted.
July 28, 2018
1 month ago
Excellent quality and value
I have bought lots of items from PSA. This, like everything I have bought from them is of high quality at very affordable prices.
July 28, 2018
1 month ago
Hit or miss
It’s really nice looking and feel great but it just jams a lot on Tula ammo and federal
July 27, 2018
2 months ago
When I received the item it was very well hacked. Also very nice piece, it fit very well to my lower receiver, no play, nice and snug, love the color I have no complaints whatsoever waiting to order my next one thank you
July 19, 2018
6 months ago
This upper may be entry level priced but it’s tough enough for everyday work and exceptionally accurate after break in.
This upper punches way above its weight in fit and finish and over all appearance. Some may like flashy looking ar style rifles but I’m practical and believe if ain’t broke don’t fix it. The basic milspec style rifle served me well on duty and this one fits the bill perfectly. After mating this upper with a psa lower I turned in some impressive if not above average groups shooting irons only.
Using a 50/200 yrd sighting method with irons.
The little carbine is surprisingly accurate compared to my scoped a4 clone.
July 4, 2018
2 months ago
Came packed beautifully and assembling the rifle was flawless
June 25, 2018
2 months ago
Great upper. 500 rounds through on the first day and no problems. Best value on the planet.
June 15, 2018
3 months ago

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