PSA 16" M4 Carbine 5.56 NATO 1:7 Nitride 13.5" M-Lok Freedom Upper - NO BCG or CH - 516444536

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PSA 16" M4 Carbine 5.56 NATO 1:7 Nitride 13.5" M-Lok Freedom Upper - NO BCG or CH - 516444536


Quick Overview

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SKU: 516444536
UPC: 516444536
MFR#: 516444536
  • Gas System: Carbine 
  • Barrel Profile: M4
  • Barrel Steel: 4150 Chrome-Moly Vanadium
  • Barrel Finish: Nitride
  • Chrome Lining: None
  • Muzzle Thread: 1/2-28
  • Chamber: 5.56 NATO
  • Twist Rate: 1:7
  • Barrel Extension: M4
  • Diameter at Gas Block: .750
  • Gas Block Type: Low-profile
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Hand guard Type: PSA 13.5" M-Lok Lightweight Rail
  • Bolt Carrier Group Included: No
  • Bolt Steel: N/A
  • Bolt Carrier Profile: No
  • Charging Handle included: No
  • Overall Length: 24.5"
  • Weight: 4.0 lbs

Add To:

Barrel:  4150V Chrome moly VANADIUM steel, 16" barrel length chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. The M4 profile barrel has a gas nitride finish for accuracy and durabiltly, and is finished off with a .750" diameter low-profile gas block, PSA 13.5" M-Lok Lightweight Free Float Rail, 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 upper receivers are made for us right here in the USA


Bolt Carrier and Charging Handle are NOT Included


SKU: 516444536
SKU 516444536
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 516444536

Questions and Answers

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Browse 3 questions Browse 3 questions
Will kit 0086 bcg fit and work with the 516444536 upper. I ordered the upper and my Ruger 556 bcg will not completely drop down into your upper without jamming about 1/4 " short of dropping all the way in.
The Ruger is mil spec according to the factory. Does this have to do with head spacing?

Best regards:
Donald A M on Jun 1, 2018
Do you have the BCG and charging handle?
Dennis P on Jul 21, 2018
Any chance you can trade out flash hider for muzzle brake, so it will be legal in crazy Cali?
Ldb777 on Jul 19, 2018


4.9 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
good quality, good price, good groups,
Good price, shoots good, used ST/2T buffer to cycle correctly. Would buy again.
July 27, 2018
1 month ago
I think this is my 7th AR15 that I have bought and built from PSA. The quality and price is unbeatable.
Better than most higher priced rifles. And very well built.
Better than most higher priced rifles. And very well built.
July 27, 2018
2 months ago
Very nice, clean, and lightweight upper.
July 26, 2018
2 months ago
Very Happy!
First AR15 assembly very happy with the quality of the upper and barrel and hand guard. Would recommend to other people.
July 25, 2018
2 months ago
Good product. Pleased with performance.
Matched to Palmetto lower, shot several different bullets and weights, and powder loads. Two, 3 shot grouped less than 1" & 100yd. None over 3".
July 7, 2018
2 months ago
Great product great company
Good quality fast shipping and service
June 26, 2018
2 months ago
You can't go wrong for the price!!!
This is my second AR with the first being a Colt so I don't have alot of experience. I don't see any benefit of the colt for the extra $450 over my Palmetto. I really like the Mlok hand guard on this rifle and everything feels like a good quality rifle. If your looking for a good quality rifle at a fair price, this is it!!!!
PSA M-Lokal Freedom upper and PSA Freedom lower.   I did change the stock to a aftermarket
PSA M-Lokal Freedom upper and PSA Freedom lower. I did change the stock to a aftermarket
June 24, 2018
2 months ago
It is a great upper and I’m very happy with it. I purchased a PSA lower unit months ago and was just waiting on the right upper and this is it. Thank you.
June 23, 2018
3 months ago
I purchased this in April and didn’t get to fire it until May. I was Amazed how well it worked now I’m trying to purchase the 18in. Which is out of stock! I can’t wait...
June 12, 2018
Excellent quality, light weight upper. Buy with confidence.
PSA does it again. This is my fifth PSA upper that I've purchased. And, again, it is of excellent quality. Fit and finish is excellent, with no blemishes that I can find. The FF hand guard is very nice, light weight, and has Made In The USA on it. The handguard is Mlok, and has a quick connect on both sides. It mates up with the upper perfectly. The upper had the gray dry lube inside. The dust cover, and foreward assist were as you'd expect, mispec. I mated this upper with a PSA MOE EPT lower that had gotten a few months earlier. The match was pretty good. There is a touch of play between the two. Nothing to be concerned about. I purchased one of the PSA nickel boron BCG's with the 9310 bolt for the upper. I've got another one that I've been very happy with. The bolt carrier group came with the upper. Suffice to say, PSA puts out quality products. The new BCG was no exception. So, I put a milspec charging handle, the new BCG in the upper, and added Magpu mbus sights on it. This is the lightest weight AR15 out of the five I own. I haven't weighted it yet, but I plan to. It's VERY light weight. I really like it. Not sure how accurate the upper will be. If it's anything like the other four AR's I've gotten from PSA it will be pretty accurate. You simply cannot beat PSA products for quality and value for the money. I'll be buying more. I may need another safe to put them in.................
June 2, 2018
2 months ago

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