10.5 complete upper

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PSA 10.5" Carbine-Length 5.56 NATO 1/7 Phosphate 10" M-Lok Upper - With BCG & CH - 5165449909


Quick Overview

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

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: 5165449909
UPC: 5165449909
MFR#: 5165449908

Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Phosphate 
Chrome Lining: No
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 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: M-Lok 10" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 19.5"

Add To:

Barrel:  10.5" Chrome Moly vanadium steel, phosphate coated and chambered in 5.56 NATO with a 1 in 7" twist rate.  Carbine-length gas barrel is finished off with a 2A Armament 10" M-Lok Rail, a low profile gas block and an A2 Style Flash hider. 

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

Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec.

SKU: 5165449909
SKU 5165449909
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: 5165449909

Questions and Answers

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Browse 14 questions Browse 14 questions and 14 answers
Where was this barrel made?
Kenneth on Oct 29, 2018
What buffer weight would be recommended for this 10.5in . 556 upper with carbine length buffer tube and spring?
David H on Dec 15, 2018
BEST ANSWER: Mine has been 100% reliable after 500 rounds with standard mil spec buffer and spring!
Is the rail on this upper too long for a quick detach suppressor? (specifically the silencerco omega)
taylor m on Dec 12, 2018
BEST ANSWER: Yes. Need to get an extension or shorter rail
Are there built in qd mounts on the rail?
jeffrey g on Dec 8, 2018
BEST ANSWER: Yes there are 2 on each side of the rail. One is about 1 inch from the muzzle end of the rail and the other is about 6 inches back from it.
what is the ID of the handrail?
Stephen G on Dec 25, 2018
BEST ANSWER: What do you mean by ID? If you’re meaning about the railing it’s Picatinny on top and Mlock on the sides and bottom
What is Chrome Moly Vanadium and what is the expected barrel life (round count) of this barrel?
Jimmy on Mar 2, 2019
What is the inside dimension of the handrail,would a spikes barking spider fit?
Tijuan T on Jan 9, 2019
Wanting to put this upper on a Windham Dissipator. Will this fit ok?
Kenny on Jun 11, 2019
BEST ANSWER: I see no reason why this upper wouldn't be a great addition to your lower choice. I hope you find my answer helpful.
What do I need to switch to a quad rail? Will I need anything besides a quad rail?
Jon H on May 22, 2019
BEST ANSWER: If youre switching to a quad rail youll a different barrel nut. Which might cone with the rail might not. Youll need a torque wrench as well to install the barrel with the right amount of torque. Idk id this matters to you but u can add standard rail slots onto the mlok rail included with this upper
Can this be shipped to California?
Dennis C on Dec 23, 2018
Will this fit a freedom lower?
Ralph M on Dec 16, 2018
BEST ANSWER: It will fit most if not all "ar15" Lowers
I already have an Anderson lower laying around. Will this upper fit properly to a different manufacturer lower?
JTAda on Dec 15, 2018
BEST ANSWER: AR recievers are all machined to about the same specs, so any standard AR upper and lower should fit together regardless of manufacturer with only slight variances.
Would this ship to Puerto Rico?
Bryandlrosa on Dec 29, 2018
Is there enough room for a suppressor to fit?
Derek M on Dec 12, 2018


4.8 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
The best upper for my needs at a price I couldn’t pass up.
Great Product. I really like it. Performs and feels fantastic. Paired with a PSA MOE, EPT, FDE lower, it is a perfect build. Love it.
August 6, 2019
2 months ago
Truck Gun Complete!
I finally completed my pistol build , for a truck gun project that I had been planning and I couldn't be more excited about the outcome!
June 12, 2019
8 months ago
Excellent product!
Ran over 1000 rounds so far. No issues at all.
June 7, 2019
7 months ago
Solid buy.
Mounted this upper on a PSA Shockwave lower and I couldn't be more impressed with the performance. I've run around 2000 rounds through this pair without any malfunctions. I run this gun just as hard as my higher end guns and have had no problems. It just asks for more.
PSA 10.5"upper on a PSA Shockwave lower.
PSA 10.5"upper on a PSA Shockwave lower.
June 6, 2019
4 months ago
Great upper great price.
Works great. No malfunctions with this upper. Great price. I couldn't be happier.
Great upper on my Aero lower
Great upper on my Aero lower
June 3, 2019
4 months ago
For the money still a great deal provided you have minimal knowledge about the rifle.
This upper overall was a great bargain. I did find that the rail was properly aligned with the upper. I went to loosen the three set screws to re-align it and found they were all very loose. To make this upper ready to use I had to re-align the rail and loc-tite the three screws to proper torque. After that all has held up well for 700 rounds. Still disappointing that this upper was shipped in such condition.
May 31, 2019
4 months ago
Amazing components! I will definitely be buying more.
This was my first AR build. I bought the Blackhawk lower and had it sent to my dealer and was impressed by the quality until the upper came. When I put the halves together I was blown away. I didn’t believe it was possible to have a quality AR for under $500, yet here it is. The build quality is amazing and the two pieces fit together flawlessly. I finally got some range time this past weekend and put my new pistol through its paces and it was great. It performed exactly as expected.
User submitted image
Added May 6, 2019
May 6, 2019
So far, Great!
Ran this pistol upper with the SBA3/ enhanced lower parts kit in an Aero lower with a Vortex Sparc on top. I added a H2 buffer because I have heard that Palmetto over gasses uppers a bit. Freedom Munitions ejected right about 3-3:30 and Tulammo ejected 3:30-4. Not a single hiccup. Accurate and reliable for the couple of hundred rounds that I was able to shoot. Will update this if things change.
User submitted image
Added Mar 31, 2019
March 31, 2019
9 months ago
affordable and a quality piece.
Nice compact and great at the range. Wish I had 20 more!!
February 28, 2019
7 months ago
Outstanding value
Mates to my PSA pistol lower, no issues, feeds reliably and accurate as to be expected with a 10.5” barrel. Would buy again no question.
User submitted image
Added Feb 26, 2019
February 26, 2019
7 months ago

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