18" upper with nickel boron charging handle

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PSA 18" Rifle-Length .223 Wylde 1/7 SS 15" Lightweight M-lok Upper With Nickel Boron BCG & CH


Quick Overview

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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 www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 5165449759
UPC: 5165449759
MFR#: 5165449759

Barrel Length: 18"
Gas System: Rifle Length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
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" Lightweight M-Lok Rail 
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 26.5"

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Barrel: 416R Stainless 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: 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.

SKU: 5165449759
SKU 5165449759
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449759

Questions and Answers

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Browse 13 questions Browse 13 questions and 37 answers
With the obvious exceptions of the finish and laser engraved logo does the bolt carrier have the same functional specs as the PALMETTO STATE ARMORY 5.56 PREMIUM FULL AUTO BOLT CARRIER GROUP - 8779?
Victor H on Dec 1, 2018
Is this an FN barrel and what's the 100 yard accuracy?
Barry B on Jan 23, 2019
BEST ANSWER: I built may dad his first AR with this upper for fathers day. After a proper break in and several rifling scrubs, we got it stacking rounds @100 and shot a 3" group @600. This is a phenomenal upper! Ammo used was boxed Norma Tac .223 55gr. Black and red box. I have pics and video of said performance @ CMP Talledega.
is gas block pinned?
Kevin P on Dec 2, 2018
BEST ANSWER: No, it was not ... I have found that I have never needed a pinned GB. I usually just dimple the marks on the barrel and torque the set screws proper.
Does 5.56 work with 223 wylde barrel?
dallas A on Dec 23, 2018
BEST ANSWER: .223 Wylde is designed to work with either .223 or 5.56.
Is the psa snek 15 stripped lower compatible with this, and if so can I use the standard psa lower kit with it?
infoFUNK i on Jan 25, 2019
BEST ANSWER: Yes, this upper will work with any PSA lowers and lower parts kits. This upper will work also work with any other mil-spec AR-15 lower and parts kit on the market.
What is the correct buffer and spring to use with this upper? Thanks
James L on Jan 17, 2019
BEST ANSWER: Standard Carbine buffer and spring.
Is the flash hider removable?
GRANT S on Jul 14, 2019
BEST ANSWER: Yes. I put a VG6 on mine. Great shooting upper and barrel. 2000 rds without a hiccup.
Will this work with a DPMS lower?
Barry S on Jun 12, 2019
BEST ANSWER: Should be fine with any mil spec ar 15 lower. Mines running on an Aero Precision
What advantages does the Nickle Boron BCG offer? Thanks
Fatelvis on Jun 30, 2019
BEST ANSWER: Nickle Boron offers increased reliability thanks to lower friction and an easier cleanup after firing.
Can this barrel fire 5.56 mm ammo?
Mike L on Jul 14, 2019
BEST ANSWER: 223 can be fired in 556 barrels. 556 generally should not be fired in 223 barrels. 223 Wylde is a compromise that fires both 223 and 556 quite well. Hope this helps. 🇺🇸
Can someone please compare/contrast nitride vs stainless barrels? Is it true that nitride are generally harder thus giving it a longer life and stainless will be more accurate?
James C on Jul 6, 2019
BEST ANSWER: This is a plain stainless barrel. You can nitride stainless and you can nitride carbon steel. Nitriding will increase the barrel's useful life. Both can be made to the same level of accuracy. This barrel should last at least 6000 rounds with out of the box accuracy. Probably double that if you take care of it (no mag dumps). You can replace the barrel for less than 200.00 if you ever get to the point that you wear this one out.
Any idea of the barrel weight..?
Doug E on Jul 5, 2019
BEST ANSWER: More than pencil. Less than H-bar.Two ounces more than the 16 inch types.
Is the gas block made of quality steel or an aluminum of some kind?
Huggy on May 22, 2019
BEST ANSWER: The gas block is good quality I really enjoy mine. No problems.


4.8 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great upper!
My experience so far has been fantastic!
The upper shipped fast! (I also ordered the PSA EPT MOE Lower Build Kit - 778097)
The cost to quality are outstanding!
The fit and finish on my upper are really good. (I'll add pictures soon)
- The nickel Boron BCG looks great(no marks or machining marks, good staking).
- The Free-float hand guard is simple, light, slim and well thought out.
- The barrel is clean, well marked(as in caliber,twist rate, etc.)

I've fired 200 rds so far, no malfunctions, only one type of ammunition 5.56 55gr.(W white box).

the accuracy looks good(I only have access to a 25 yd indoor range currently)

My only 2 cons:
- I found one tiny little blem on the free-float rail(doesn't effect functionality)
- No weight listed on product page

I'll update the review once I get more rounds through this upper.
July 13, 2019
2 weeks ago
Awesome upper
Great upper well constructed will be a nice addition to my lower
July 6, 2019
1 month ago
Excellent as always.....
Outstanding quality on this upper. PSA continues to produce high quality AR parts at very affordable prices.
June 15, 2019
3 months ago
Well worth the money
Well my experience might be different then others but here is my experience. I placed the order easy enough and did my time waiting and when I got it the upper receiver had 3 dents in the side of it . My fancy bolt carrier was rubbing on the dent . So I called several times to figure out the Process to return the item and they were very helpful in doing anything in there power to make the return process easy . Then I got my new one a couple weeks later . Although there were marks in the same place as the one I sent back , but it wasn’t dented this time . I’m very happy with the whole gun and I would recommend this idem
User submitted image
Added Jun 14, 2019
June 14, 2019
3 months ago
Put about 1500 rounds downrange and this is a great shooting rifle. I really like the stainless barrel and nickel BCG. No malfunctions so far. Only issue was hand guard screws came loose, but no big deal. Highly recommend
June 12, 2019
7 months ago
Overall very happy
Very nice!!!extremely happy overall the only thing I’m really not happy about is the Nichol Boron coating is coming of the BCG I’m gonna have to contact PSA about still I rate it 5 stars shoots well if you do your part just like any firearm you own
June 11, 2019
3 months ago
Better than expected!
This was the upper i used for my first AR build, i am very happy with not just the accuracy and functionality, but the looks as well! PSA has another fan, me!
March 28, 2019
5 months ago
I like it 😋
Would recommend for a normal build. Seems well built, quality parts and reasonably accurate. No problems so far (aprox.500 rounds).
SS 18" .223 Wylde, HyperFire Trigger, Anderson Lower, PA Magpul MOE Lower Kit, White Kote Stock
SS 18" .223 Wylde, HyperFire Trigger, Anderson Lower, PA Magpul MOE Lower Kit, White Kote Stock
March 24, 2019
5 months ago
Very nice upper. Enjoy shooting and training with it
User submitted image
Added Mar 15, 2019
March 15, 2019
5 months ago
It match up perfectly with a Bushmaster AR15 lower. The upper met my goal of a budget varmint gun. It is producing 0.8" groups at 100 yards with hand loaded 65 gr GK SPBT with 25 gr Varget. The only minor glitch was failure to cycle Remington 55 gr 223 factory ammo, so I wasted the money for a box of 100. It shoots and cycles Winchester 55 gr 223 factory ammo okay. I shoot almost exclusively hand loads so I am not concerned the issue with Remington ammo. I would recommend.
February 26, 2019
6 months ago

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