PSA 7.5" 5.56 NATO 1:7 Phosphate 7" Slim M-Lok Upper With BCG, CH, & Vortex Sparc Red Dot Optic

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PSA 7.5" 5.56 NATO 1:7 Phosphate 7" Slim M-Lok Upper With BCG, CH, & Vortex Sparc Red Dot Optic


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.

SKU: 5165447847
UPC: 5165447847
MFR#: 5165447847

Barrel Length: 7.5"
Barrel Profile: Pistol
Gas System: Pistol-Length
Barrel Steel: 4150 Chrome Moly 
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 Bird Cage
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 7" M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Charging Handle Included: Yes
Optic: Vortex SPARC AR Red Dot
Overall Length: 18"

Add To:

Barrel:  7.5" 4150V Chrome Moly vanadium steel barrel, phosphate coated and chambered in 5.56 NATO with a 1 in 7" twist. The pistol-length gas barrel is finished off with an anodized PSA 7" M-Lok Rail, a low profile gas block, and an A2 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: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt is shot peened, high pressure tested, magnetic particle inspected, gas key hardened to USGI specifications, fastened with grade 8 screws, and staked per Mil-Spec. The 8620 steel M-16 profile carrier is chrome lined and phosphate coated.

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: 5165447847
SKU 5165447847
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
SKU: 5165447847

Questions and Answers

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4.4 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Will make more purchases in the future
Ease of buying from this company is amazing! Shipping is quick and easy and the finished product always looks and functions perfectly.
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Added May 30, 2018
May 31, 2018
4 months ago
On point
Great product! I'd recommend it to anyone.
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Added May 21, 2018
May 21, 2018
4 months ago
Entry level? Who says
Great quality for the price. Just what I expected. I have already ordered another upper. Can’t wait for it to arrive.
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May 19, 2018
4 months ago
Worth the price but with a few minor issues. First the handguard came crooked on the upper out of the box which was a easy fix with some basic tools. Second running the same lower and BCG as my other 7.5" pistols as well as the same ammo I experienced several failures to eject every 30 round mag I put in it. Hopefully this will get better with time. Knowing what I know now I doubt I would have purchased this if it did not come with the vortex optic.
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Added May 11, 2018
May 11, 2018
4 months ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, if you have any issues arise from the craftsmanship of the product, we can either have select parts sent to you for you to replace, or we can have the item brought in, at no cost to you, so we can repair or replace the defective product. Please contact Customer Service so we may resolve this issue.
May 11, 2018
Casey S
Great product for the price. Would prefer keymod with 9” rail on 7.5” barrel.
Very pleased with the set up. My only complaint however is when trying to remove the handguard the 4 bolts closest to the receiver seemed to be loctighted, they were UNREMOVABLE. Tried a heat gun, tried everything finally had to easy out them. Now the front four came out no problem. Ended up blemeshing the rail slightly.
Just A LITTLE of my own touch
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May 8, 2018
4 months ago
I received my upper in about a week, I also purchase the PSA lower with the SB TAC Brace. The Gun is amazing. I have took it to the range about five since I got it and it runs like a sewing machine.
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May 6, 2018
4 months ago
Great upper! Crazy deal!
Was pleasantly surprised by the quality, and flawless performance this 5.56 7.5” upper and optic for such a great price!
May 3, 2018
4 months ago

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