PSA 18" Rifle Length .223 Wylde 1/7 Nitride 15" Lightweight M-Lok Upper w/ Nickel Boron BCG & CH

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PSA 18" Rifle Length .223 Wylde 1/7 Nitride 15" Lightweight M-Lok Upper w/ Nickel Boron BCG & CH

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Regular Price: $ 559.99

Special Price $ 289.99

Quick Overview

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SKU: 516447357
UPC: 516447357
MFR#: 516447357

Barrel Length: 18"
Gas System: Rifle Length
Barrel Profile: A2 Style
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride 
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: 9310, Nickel Boron
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 26.5"
Weight as Configured: 4.50 lbs

Add To:

Barrel: 4150V Chrome Moly Steel.  Chambered in 223 Wylde, with a 1:7 twist rate, M4 barrel extension, and a rifle-length gas system.  Barrel is is finished off with a PSA 15" Lightweight M-Lok free float rail, .750 gas block, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized.  These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt Carrier Group: 5.56mm Bolt Carrier Group is Nickel Boron coated and features a 9310 bolt.  The gas key is hardened and secured with Grade 8 fasteners, and is staked per Mil-Spec. 

SKU: 516447357
SKU 516447357
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 516447357

Questions and Answers

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Browse 12 questions Browse 12 questions and 32 answers
Will this fire 5.56 ?
Jerry B on Apr 18, 2018
BEST ANSWER: Yes. It's a .223 Wylde chamber. Fired 100 rounds of Wolf 55gr. .223 and 200 rounds of S&B 62gr. M855 green tip 5.56 and everything fed/fired/extracted without issue.
Is the flash hider nj compliant out of the box? Or does it have to be pinned and welded?
Michael G on Apr 25, 2018
BEST ANSWER: Comes with a standard threaded A2 birdcage. Would need to be pinned and welded for NJ compliance
Does this have Freedom or Premium NB BCG?
c k on Apr 23, 2018
BEST ANSWER: freedom but 5000 rounds on mine and still going strong
Will this work with a standard buffer and spring?
Mark S. on Sep 8, 2018
BEST ANSWER: Mine is currently set up with a Black PSA carbine buffer (standard weight) that came with a complete PSA lower. I have several hundred flawless rounds through this setup.
What kind of groups will this upper do at 100 yards?
Jesse on Sep 5, 2018
BEST ANSWER: I do about 2 inch groups at 100 yards. It may be more accurate. I think the limiting factor is likely my skill.
Does it have 1/2 x 28 or 5/8 x 24 threads on the muzzle?
Patricio on Apr 23, 2018
BEST ANSWER: 1/2 x 28 standard AR threads.
Is the gas block adjustable?
Ben P on Sep 19, 2018
BEST ANSWER: Short answer is no. Long answer why do you ask. Is it due to barrel sizing or tube length.
What type of mounting system is used on the bottom part of the rail?
Ben P on Sep 5, 2018
BEST ANSWER: There is M-Lok rail at the 3 o'clock, 6 o'clock, and 9 o'clock positions.
Is the gas block pinned in place ?
Rodney G on Sep 1, 2018
BEST ANSWER: I can't tell you 100% because it is hard to see, but I believe it uses set screws.
Will you deliver to NYC or Upstate NY??
Everlyn P on Sep 23, 2018
Kurtis S. mentioned that his upper did not "Line up" with his receiver- does that mean his upper is improperly torqued? (Please contact him and have him bring his upper in) thanks.
Jon N on Sep 7, 2018


4.6 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Quality at a fair price
Very please with this upper. Fast delivery. Mates tightly to my Palmetto lower. Good accuracy at 200 yds in 1 - 2 MOA depending on ammo. Nickel Boron bolt functions great, no malfunctions in first 500 rds.
September 16, 2018
3 weeks ago
Five stars for fit and finish of upper only which is good Replaced A2 Flash Hider with Seekins Compensator. Waiting on lower. Haven't decided on sighting system yet. Hope it shoots as well as it looks.
September 13, 2018
3 months ago
best damn upper ever
its a great shooter. have over 5000 rounds on her and not one issue. plus it can do sub moa with good ammo
September 2, 2018
5 months ago
I love the quality, precision, feel and look of my upper. I rate them 5 star in not only product but timely shipping of my order. Wonderful Job palmetto you will be seeing more of me.
My palmetto upper
My palmetto upper
September 1, 2018
2 months ago
Pretty nice SPR upper
This upper came packaged well. It's measured well within spec. It looks nice and functions as well as it looks. Only complaint, and reason for the 4 star vs 5 star review are that the lightweight M-LOK rail is so close to the gas block that it interferes with mounting accessories like a 5 slot picatinny rail for mounting a bipod. Or the Magpul M-LOK bipod. This can be overcome by mounting a longer rail section than needed....but the point of the handguard is to only install what you need. That's the only thing wrong really. That and the top rail doesn't quite match up to the upper. Not a big deal when running optics and no irons however.
August 19, 2018
3 months ago
Very very disappointed in psa on this one....I've purchased multiple uppers and rifle kits and have had this problem with a couple of there barrels but this one has been the worst by far.....EXTREMELY inaccurate I'll send 5 rounds down the barrel and idk if it's just heating up too quick or what but after about that 5th round the groupings go from 2 moa to hitting almost 2 feet apart.....I even went and bought a LED SLED to hold the rifle in the same position every time and still same results.....if contacted PSA and told them about it and I have yet to get a response from them....what a big surprise there lol hope this review helps.....STAY AWAY FROM THERE 223 WYLDE NOT MADE CORRECTLY.
July 15, 2018
5 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 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.
July 16, 2018
Casey S
Love it.
Beautiful, accurate, comfortable. I love it.
User submitted image
Added Jul 9, 2018
July 9, 2018
5 months ago
Not really happy
Haven't had a chance to test out a bunch of different ammo just yet but not happy thus far. Short stroked easily half a dozen times out of 150 rounds. Like I said, could be ammo but idk. Further testing required.
Haven't had a chance to test out much ammo but not happy thus far.
Haven't had a chance to test out much ammo but not happy thus far.
May 24, 2018
5 months ago
Great quality, shoots awesome! Ordered 3 other uppers from PSA.
May 14, 2018
5 months ago
I've taken it to the range 3 times so far. Out of the first 60 shots or so, had several fail to extract problems, but after that, it has run without issues. Also produced several one inch groups at 100 yards with Federal bulk pack ammo, and some old South African military stuff. I also had just a few 69 grain Black Hills rounds that also came in at less than one inch, so yes, I like this upper very much.
May 11, 2018
5 months ago

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