PSA 7" 5.56 NATO 1/7 Nitride 9" M-Lok Upper With Fluted Flash Can, BCG, CH, & MBUS Sight Set - 5165447626

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PSA 7" 5.56 NATO 1/7 Nitride 9" M-Lok Upper With Fluted Flash Can, BCG, CH, & MBUS Sight Set - 5165447626


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: 5165447626
UPC: 5165447626
MFR#: 5165447626

Barrel Length: 7"
Barrel Profile: Heavy
Gas System: Pistol-length
Barrel Steel: 4150V Chrome Moly Vanadium
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 9" M-Lok Free Float Rail
Optics: Magpul Front and Rear MBUS Back Up Sights
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes

Add To:

Barrel: 7" 4150V Chrome Moly vanadium steel, melonite treated for durability and chambered in 5.56 NATO with a 1 in 7" twist. Pistol-length gas barrel is finished off with a PSA 9" 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. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.

Flash Can: Palmetto State Armory Fluted "FLASH CAN". This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-28 for 5.56 NATO. Black military-style hard anodizing. THIS DEVICE IS NOT DESIGNED TO REDUCE RECOIL, MUZZLE RISE, OR FLASH SIGNATURE. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon's appearance.

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. Bolt carrier is parkerized outside, and chrome lined inside.

Includes: Magpul MBUS Sight Set, Black

SKU: 5165447626
SKU 5165447626
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
SKU: 5165447626

Questions and Answers

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Browse 1 question Browse 1 question and 1 answer
Do you have to use one of your 9MM lowers?
Scott W on Apr 24, 2018
BEST ANSWER: This is a 5.56 upper receiver, so you would need to use an AR-15 lower.


4.8 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Top Shelf
I am 100% impressed with this upper. It proved to be accurate and reliable and it looks badass. Thanks PSA
Aero Lower PSA Upper :)
Aero Lower PSA Upper :)
May 22, 2018
1 month ago
Five 🌟🌟🌟🌟🌟
Five 🌟🌟🌟🌟🌟👏👌👍🌟🌟🌟🌟🌟👏👌👍
May 20, 2018
1 month ago
Awesome upper. PSA is awesome.
May 20, 2018
1 month ago
Poor customer service
Customer service not receptive to my concerns. Expected me to arrange or travel to return a blemished upper that they sent to me. Packaging was perfect, indicating they sent a blemished part. I paid for an unblemished upper and should have been made whole. Requiring me to do anything is unacceptable. I will never do business again.
May 19, 2018
1 month ago
Response from Palmetto State Armory
We apologize that you had this issue. Upon reviewing your multiple correspondences with our customer service team, our procedures were followed appropriately. If you would've rather have had us issue your label and schedule a UPS pick up, you could have at any time requested for us to do so if the nearest drop off point was too far away. As far as added cost, we always pay for a customer's return to us if it was in regards to a defective product as per our Unlimited Lifetime Warranty. Please contact us again if you have any further questions or concerns.
May 21, 2018
Casey S
Looks great very tight did not shoot it yet
May 12, 2018
1 month ago
Reliable and stylish
I was wondering if I would have gas issues with the 7" barrel but I haven't had a single misfire yet. and it locks back when the mag is empty. So I have zero complaints with this upper. It fits really good with my Spikes lower. I am using the Kak Industry shockwave buffer assembly with it and it works great.
May 11, 2018
1 month ago
Much better than what I anticipated
This upper is honestly and surprising comparable to my BCM shorty upper. Fit and finish is nice, it’s assembled correctly. I have had zero issues, have fired several hundred rounds both brass and steel case and it does exactly what it should do. I will buy another one. Maybe in 10.5?
May 8, 2018
1 month ago
Highly Impressed!
Bought a Palmetto upper and lower. The fit and finish is great! It shoots great! Ultra reliable at a good price. Will be doing much more business with palmetto in the future.
May 7, 2018
1 month ago
Pistol upper
Great little upper for a reasonable price. I’m very happy with the overall quality and first time shopping experience. Thanks guys!
May 6, 2018
1 month ago
A great upper for the money
This is a great little upper. Light weight and well made. Fit on my lower with no problem. I definitely recommend this for your build.
May 3, 2018
2 months ago

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