PSA 18" Rifle-Length .223 Wylde 1/7 Stainless Steel 15" Lightweight M-Lok Upper With MBUS Sight Set & NiB BCG

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PSA 18" Rifle-Length .223 Wylde 1/7 Stainless Steel 15" Lightweight M-Lok Upper With MBUS Sight Set & NiB BCG


Quick Overview

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: 5165490473
UPC: 5165490473
MFR#: 5165490473

Barrel Length: 18"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R Stainless Steel
Barrel Finish: Stainless
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 223 Wylde
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 15" M-Lok Lightweight Rail 
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158, Nickel Boron
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Sights: Magpul MBUS Sight Set, Black
Overall Length: 26.5"

Add To:

Barrel: 416R stainless steel barrel.  Chambered in 223 Wylde, with a 1:7 twist rate, M4 barrel extension, and a rifle-length gas system. Barrel is finished off with a PSA 15" Lightweight M-Lok free float rail, .750" low-profile gas block, and an A2-style flash hider.

Upper: Forged 7075-T6 aluminum 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 Carrier Group: ToolCraft nickel boron BCG has a bolt made of mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec.

Included:  Magpul MBUS Sight Set, Black

SKU: 5165490473
SKU 5165490473
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165490473

Questions and Answers

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Browse 14 questions Browse 14 questions and 15 answers
Who manufactures the barrel on this upper?
Kevin H on Jul 21, 2019
BEST ANSWER: PSA manufactures all of their barrels in house.
What does this upper weigh in at?
Joe in Missouri on Jul 29, 2019
What is the difference between this and your other 18" stainless uppers?
James H on Jul 28, 2019
BEST ANSWER: Hummmmm.... where to begin. 1. Calibers. 2. Barrel Profiles. 3. Total weight of upper. 4. Sights included/not included. 5. Form/shape of handguards. 6. Weight of handguards. 7. Gas system lengths. 8. Triggers. 9. BCG's. Likely going to need a bit more specific. What, exactly, are you inquiring about?
can 223 and or 5.56 ammo be shot in this upper ?
Harrison Harry P on Jul 26, 2019
BEST ANSWER: Yes. This chamber was designed to handle the pressure of 5.56, while provided a tighter tolerance, hence greater accuracy, with .223.
Will a carbine buffer in my lower be compatible with this rifle length gas system upper?
Deral B on Jul 19, 2019
BEST ANSWER: While it will likely exhibit more noticable recoil, i.e. recoil harder, the felt recoil could likely be reduced or mitigated by the use of a heavier buffer. Possibly by using a 'stiffer' recoil spring, or a combination of both. I always chuckle when I hear the term 'recoil' associated with a .223/5.56mm rifle. As a 2-Service, Infantry (USMC, US Army (Commissioned)) vet, I have always put my nose against the charging handle to use the sights and fire the weapon. Admittedly, after a pitched battle, my nose might show signs of a bit of 'scuffing' while actively employing an M4. But hey, it's how I learned many, many eons ago.... .
I have an lower with a mid length gas system, will this rifle length upper work ok with my lower?
Clifford T on Aug 4, 2019
BEST ANSWER: Lowers don't have gas systems. Your question makes 0 sense.
Is this a FN barrel?
Lucky on Aug 2, 2019
BEST ANSWER: No. Only their CHF barrels are FN. All other barrels PSA makes in house.
Will this guy a ruger 556?

Terry Z on Jul 27, 2019
BEST ANSWER: What guy?
Can this upper assembly be used suppressed?
R O on Jul 18, 2019
BEST ANSWER: Yes. Curious though what or why you think it might not.
I have a lower with a mid length buffer, will it work with and if it will, what effect will I notice with this rifle length upper?
Clifford T on Aug 2, 2019
BEST ANSWER: There should be no issues. This rifle length upper should be a bit 'softer shooting' initially. On paper anyway...
How is the accuracy with the 1:7 twist and 55 grain bullets?
Ty F on Aug 5, 2019
BEST ANSWER: On paper anyway a .223 will be more accurate through this barrel (.223 Wylde), while allowing 5.56mm to be safely fired, than it (the .223) would be through a straight 5.56mm chamber. Chances are we (the general shooting population) will likely never even notice a difference because these weapons will out shoot 90+% of all of us. The Wylde will tighten up .223 over a straight 5.56mm barrel. It may, or may no,t out shoot a regular ,223 only barrel. One more thought. The tighter twist rate, on paper, prefers a heavier bullet weight. My/our 1:7"'s all shoot 62 grain a bit better than 55gr. My wife has the same opinion. We do not have any 1:8" or 1:9" barrel examples to compare to or with.
Is the barrel free floated?
Christopher W on Aug 4, 2019
Can I swap this upper out on my rifle length PSA AR 15 and not have an issue with the heavier buffer ?
Franklin H on Aug 3, 2019
BEST ANSWER: There should be no issues. This is also a rifle length gas system.


5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awesome fit and finish.
Every thing advertised and more, Pleasure to shoot, Gassed perfect. Shoots a little high at 100 but all in a 3 inch circle. Second PSA AR 15, Next AR 10.
August 15, 2019
2 weeks ago
Extremely accurate
Very accurate. Lightweight upper is nice to carry all day. Loves IMI 77 grain Sierra match kings. Half inch groups at 100 yards.
User submitted image
Added Aug 9, 2019
August 9, 2019
2 weeks ago

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