PSA 10.5" 5.56 NATO 1/7 Nitride 12" M-Lok Upper With MBUS Sight Set, & Vortex Sparc - No BCG or CH

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PSA 10.5" 5.56 NATO 1/7 Nitride 12" M-Lok Upper With MBUS Sight Set, & Vortex Sparc - No BCG or CH


Quick Overview

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

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 (CA Health and Safety Code Section 25249.6).

SKU: 5165450840
UPC: 5165450840
MFR#: 5165450840
  • Barrel Length: 10.5"
  • Barrel Profile: A2
  • Gas System: Carbine-Length
  • Barrel Steel: 4150 Chrome Moly 
  • Barrel Finish: Nitride
  • 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: PSA Fluted Flash Can
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Handguard Type: PSA 12" Slant End M-Lok
  • Bolt Carrier Group Included: No
  • Bolt Steel: N/A
  • Bolt Carrier Profile: N/A
  • Charging Handle Included: No
  • Sight Set: Magpul MBUS Sight Set, Black
  • Optic: Vortex SPARC AR Red Dot

**BCG & Charging Handle Not Included. 

Add To:

Barrel:  10.5" 4150V Chrome Moly vanadium steel barrel, Nitride treated and chambered in 5.56 NATO with a 1 in 7" twist. This carbine-length gas barrel is finished off with a PSA 12" Slant End M-Lok Rail, a low profile gas block, and a PSA Fluted Flash Can.  

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.

Includes: Magpul MBUS Sight Set & Vortex Sparc AR 1x Red Dod:

Vortex Sparc AR 1x Red Dot: 

Simple—Fast—Effective—Point and Shoot. When you boil it down, those are the advantages of a red dot sight. And that’s what the SPARC AR delivers - all in a durable, lightweight, compact, and ultra-clean package. Digital rear-facing controls for power and dot brightness offer quick access and are viewable from the shooting position. 2 MOA dot diameter promotes a precise point of aim and automatically returns to last dot intensity used when powered up.

Unlimited eye relief and parallax free, the SPARC AR gets shooters on target fast. The SPARC AR is waterproof, fog proof and shockproof for ultimate durability. Unit automatically shuts off after 12 hours to prevent accidental battery rundown and operates using a common AAA battery. Duty rifle, home defense, recreation, the SPARC AR is built to handle all your red dot needs.



• Fully Multi-Coated ‒ Multiple anti-reflective coatings on all air-to-glass surfaces increase light transmission.

• Bright Red Dot ‒ Display is highly visible in daylight.

• Brightness Settings ‒ Provides 10 variable illumination settings—the lowest two settings are night-vision compatible.


• Nitrogen gas purging with o-rings-seals delivers fog proof, waterproof performance.

• Compact and lightweight single-piece chassis

• Waterproof ‒ O-ring seals prevent moisture, dust, and debris from penetrating for reliable performance in all environments.

• Shockproof ‒ Rugged construction withstands recoil and impact.

• Hard Anodized Finish ‒ Highly durable low-glare matte finish.

• Operating Temperature ‒ Rated from -4 degrees to +158 degrees Fahrenheit.


• Multi-Height Mount System ‒ Includes a spacer shim that can be utilized to provide two different mounting heights: lower 1/3 co-witness (40 mm) & absolute co-witness (37 mm).

• Non-critical eye relief for rapid target acquisition.

• 12-hour battery power with an auto-shutdown feature to maximize battery life (typical battery life is 300 hours at maximum brightness and 5,000 hours at minimum brightness setting).

SKU: 5165450840
SKU 5165450840
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: 5165450840

Questions and Answers

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Browse 26 questions Browse 26 questions and 20 answers
Is this barrel nitride or phosphate coated. Two of the three above references say nitride, one says phosphate. Which is it, please?
cvjagman748 on Feb 10, 2019
Whats the inside diameter of the handguard?
John B on Feb 9, 2019
BEST ANSWER: 1 3/8's inch!
What Bolt Carrier is recommended that would compliment the upper? rap
RICHARD P on Feb 11, 2019
BEST ANSWER: Whatever you can afford
What is the model number of the Vortex Sparc AR red dot optic?
cvjagman748 on Feb 10, 2019
BEST ANSWER: They only make one model...
does this have a adjustable gas block?
Don B on Feb 12, 2019
Can anyone explain why it takes "up to 15 days" to ship an upper? Buy a lower, next day service. Buy mags, optics etc next day service. Do they store the uppers in carbonate and need to defrost them for human appplication? Are they cast in granite and need to be chiseled out by magical forest gnomes with special upper receiver hammers?
Bentarm13 on Feb 22, 2019
BEST ANSWER: Ordered over a week ago, still hasn't shipped. they must be mining the metal or something it's mind boggling that it takes a company up to half a month to ship a product.
What is a SBR stamp? I am new to building AR-15s but am very mechanically inclined & really want to custom build my own but sort of budget friendly lol.
Jerry W on Feb 19, 2019
BEST ANSWER: It’s a "license" from the BATF. You need it if you put a upper under 16" on a AR lower. You don’t need it if you put a upper under 16" on a pistol lower. Do your homework and make sure you understand the rules before you start building.
Would this be a good pistol barrel?
tony n on Mar 8, 2019
BEST ANSWER: This is a good CQC upper. I have mine on a lower with the SBA3 brace that is always on sale and it is pretty great.
How far does the flash can protrude from the end of the handguard?
David on Mar 13, 2019
BEST ANSWER: It stands out from the top of the hand guard about 1 1/4 inches and 1 3/4 inches from the bottom.
Will this upper fit a bushmaster 5.56 lower?
THMOO on Feb 23, 2019
Is the "mbus" sight set, that comes with this, plastic or metal ? I have seen both.
Bryan E on Feb 23, 2019
BEST ANSWER: It is made of a polymer!
Is this come with trigger group?
Chaofu L on Mar 26, 2019
BEST ANSWER: Nope. It is only the upper. The trigger group goes in the lower.
Can’t you just tack weld one of those 5.5-6” faux “silencer” tubes onto the barrel and be compliant and look cool at the same time?
DeeJay on Mar 17, 2019
Do the MBUS sights absolute or lower 1/3 co-witness with the Sparc optic?
Aaron W on Mar 13, 2019
BEST ANSWER: The Sparc optic comes with a base plate riser that allows you to do either.
Is this a kit or a complete upper assembly (minus BCG and CH)?
Ninja C on Feb 15, 2019
BEST ANSWER: Complete upper minus BCG and charging handle.
Is this considered pistol upper or SBR?
Agnieszka on Feb 9, 2019
BEST ANSWER: It’s intended for pistol build. Whether it’s a pistol or SBR depends on what type of lower brace or buttstock is on your lower receiver. If you have a Pistol brace on a standard lower then it’s considered a pistol. Hope that helps!
Is this compatible with the mp sport 2 ar 15?
Dylan T on Apr 8, 2019
Does anyone have this on an Anderson lower? I was told it may need shimmed.
Sean H on Apr 7, 2019
How do I get this barrel but off to change the upper?
Tyler C on Apr 3, 2019
After its shipped how long will it take?
Joshua W on Mar 27, 2019
Will this work on a Bushmaster Lower?
BillG on Mar 13, 2019
will this ship to California?
Emmanuel D on Feb 24, 2019
Is this or has this been offered in 300 Blackout?
Saterry on Feb 20, 2019
Will this fit with a S&W sport 2 lower and bolt carrier group?
Kenny on Feb 14, 2019


3.6 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
It'll function, but I'm more than likely not going to be ordering an upper from PSA again anytime in the near future.
Finally received the upper yesterday and though I can say that it looks great, I have to say that it's going to need a different upper receiver because, as mentioned in a previous review, there is far too much play horizontally when paired up with any of my lowers. It's still a pretty decent deal and thankfully I have a few other stripped uppers on hand, but this definitely leaves a sour taste in my mouth when it comes to PSA.
March 28, 2019
Nice, light upper assembly. I checked all the tolerances on it before i built it and it was spot on. Great deal with the Vortex Sparc. Its not the best red dot on the market by any stretch, but it will be fine for the majority.
User submitted image
Added Mar 23, 2019
March 23, 2019
Awesome Deal!
My wife got me this mostly for the Sparc AR, and that alone is worth 200$! The 10.5 inch upper is just the icing on the cake as it's definitely worth the 180$(?) extra. It came in a discreet box, very well packaged. There were a few blemishes on the upper, but lets be honest, these are meant to be used. Not just left in the corner and for show. So the marks aren't that big of a deal to me whatsoever. The Sparc was in a shrink wrapped box (Original box from manufacture). I did take the upper apart as I have heard about doing it just for the sake of making sure everything is OK. My ONLY issue was that the aluminium barrel nut had ZERO grease on it and that the barrel extension had none. But again, the type of person I am, that was NO ISSUE. I enjoy taking things apart and putting it back together and had fun doing it.

The parts that I put into this upper are as follows;

Aero Precision Nickel-Boron BCG
Strike Industries ARCH-EL Charging Handle

They work flawlessly as of yet. Will update if anything goes South in the future.
March 21, 2019
Great product , great deal
Just received mine in the mail. Matched up well with my lower and a bcg/ch i had laying around. No issues.
March 15, 2019
Bad Upper Receiver
Radian Raptor LT charging handle, that works flawlessly in two other upper receivers, binds in this one.
March 13, 2019
Poor fitting upper
Nice kit but the upper receiver that was included is sub standard, all other parts are excellent. Did not fit any of my lowers (4) without excessive movement. It was not the Aero receiver that came on my PSA 7.5 upper which fit perfect. Went to Cabela’s and bought a new Aero to replace, not such a good deal if the upper is unacceptable. Purchasers make sure you get the upper with the T marks, this poorly fitting upper does not have them.
March 8, 2019
Great buy and great price
Just based upon initial impression without shooting it yet; it looks great. Perfect fit and finish. Pairs well with the PSA nib bcg and I replaced the stock flash can with a micro kak can to get a more flush look. Looking forward to shooting it soon.
User submitted image
Added Feb 22, 2019
February 23, 2019
Sleek and Petite, yet bold and intimidating !
Fast shipping. Ordered it on 02/10, it shipped on 02/14, and arrived on 02/21. Purchased this based on Tactical Toolbox’s review. The pictures on this page don’t do the justice. Sleek and petite, yet bold and intimidating. Perfect finish and great quality for a reasonable price. Don’t pass up on such a great deal.
User submitted image
Added Feb 21, 2019
February 21, 2019
2 months ago

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