Photo of PSA 7" barreled upper receiver made for 5.5g ammo.

More Views

PSA 7" Nitride 5.56 1/7 6" Lightweight M-Lok Upper - With BCG & Charging Handle - 5165447572


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 (CA Health and Safety Code Section 25249.6).

SKU: 5165447572
MFR#: 5165447572

Barrel Length: 7"
Barrel Profile: Pistol
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: A2 Bird Cage
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 6" Lightweight M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 17.5"

Add To:

Barrel:  7" 4150V Chrome Moly vanadium steel, nitride treated for accuracy and durability, and chambered in 5.56 NATO with a 1 in 7" twist. Pistol-length gas barrel is finished off with an anodized PSA 6" Lightweight  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, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.

SKU: 5165447572
SKU 5165447572
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: 5165447572

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 4 questions Browse 4 questions and 1 answer
Can it be shipped to California ?
David E on May 6, 2018
BEST ANSWER: No you will die of cancer.
Any recommendation on a matching lower receiver for this upper?
Bobby on Jul 15, 2018
can you ship without A2 flash hider?
Duane F on May 14, 2019
Dpes a certain weight of buffer and spring have to be used compared to a carbine?
Mr. L on Jul 12, 2018


4.8 / 5.0
25 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I would definitely recommend this product. Works flawlessly. Very loud though, so dont forget hearing protection!
I would definitely recommend this product. Works flawlessly. Very loud though, so dont forget hearing protection!
July 1, 2019
3 months ago
Good price on a good assembly.
September 9, 2018
1 year ago
PSA 7" upper
Great buy and fit and finish was beautiful.
September 2, 2018
1 year ago
Ran 20 rds so far thru it and seems to be a keepee
Can't beat the price
August 23, 2018
1 year ago
Love It!
Happy Happy Happy Happy!
August 22, 2018
1 year ago
Couldn't be happier!
Great upper! Fit really well onto my completed 80% lower! Always pleased with PSA!
August 20, 2018
1 year ago
Great Upper, highly recommended
Bought for my pistol build. Well built, works great.
August 18, 2018
1 year ago
I enjoy the speed and ease of fitment.
These kits always fit well and function superbly.
One of the pistol kits that ive done.  Like the others, it is a blast to shoot.
One of the pistol kits that ive done. Like the others, it is a blast to shoot.
August 10, 2018
1 year ago
Fast shipping! Looks great! Works Great! Great DEAL!!!
Love it!! Fast shipping! Works great!
Love it!! Fast shipping! Works great!
July 21, 2018
Great upper, have 3 palmetto pistol uppers and never one issue to date so far. Bout 200 rounds shot through and I’m impressed. Definitely recommend.
User submitted image
Added Jun 30, 2018
June 30, 2018

Customers Who Viewed This Item Also Viewed