Nitride 15" Lightweight M-lok complete kit

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PSA 18" Rifle-Length .223 Wylde 1/7 Nitride 15" Lightweight M-lok MOE EPT Rifle Kit w/MBUS Sight Set - 5165450474


Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

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: 5165450474
UPC: 5165450474
MFR#: 5165450474

Barrel Length: 18"
Gas System: Rifle-Length 
Barrel Profile: A2
Barrel Steel: 4150V Chrome Moly
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" Lightweight M-Lok Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Optics: Magpul MBUS Front and Rear Flip-Up Sights, Black
Fire Control Group: PSA Enhanced Polished Trigger (EPT) FCG

Add To:

Barrel: 18" 4150V nitrided barrel, chambered in .223 Wylde, with a 1:7 twist, M4 barrel extension, and a rifle-length gas system. The barrel is finished with with a .750" diameter low-profile gas block, PSA 15" Lightweight M-Lok Free Float Rail and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these upper upper receivers are made for us right here in the USA.

Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked.  Includes Charging Handle.

Lower Build Kit:  PSA MOE EPT Lower Build Kit, Black

Includes: Magpul MBUS Sight Set, Black 

SKU: 5165450474
SKU 5165450474
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165450474

Questions and Answers

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Browse 8 questions Browse 8 questions and 6 answers
How often do these kits come back in stock? I'm looking for my first build, would you recommend the Nitrided barrel over the stainless steel barrel?
Mike T on Apr 2, 2019
PSA 18
PSA 18" Rifle-Length .223 Wylde 1/7 Nitride 15" Lightweight M-lok MOE EPT Rifle Kit w/MBUS Sight Set - 5165450474
PSA 18
PSA 18" Rifle Length .223 Wylde 1/7 Stainless Steel 15" Lightweight Keymod MOE Freedom Rifle Kit With MBUS Sight Set - 516447006
Is it safe to fire 5.56 ammo it says it has a M4 receiver ?
hoot101 on Feb 28, 2019
BEST ANSWER: Yes. .223 Wylde will fire 5.56 NATO and .223 REM.
this comes with the back up sights? how is the 18 inch with rifle length gas block? thanks.
james n on Jan 9, 2019
BEST ANSWER: Slightly overgassed and does come with MBUS set 100 dollar value
Can you ship this to Colorado?
Wireline on Jan 9, 2019
What is the total weight of this rifle, fully assembled? Thanks.
S T on May 28, 2019
Is this a mill spec buffer tube or Comercial?
Noe A on Mar 19, 2019
BEST ANSWER: The one I received was mil
When will it be back in stock?
Victor F on Jun 30, 2019
Can this be shipped to New Mexico?
Brayden P on Mar 8, 2019


4.6 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Excellent Value
Everything put together easily. The rifle shoots with great accuracy. 600 yard plates ringing with no problem. The 18 inch packs a punch, It's leaving craters in my steel plates vs my 16 inch just making marks. I reccomend using 77 grain for long distance. 55 grains had no problem with accuracy as well. One complaint is the charging handle feels very light weight flimsy. I ordered a beefier charging handle and I am satisfied this rifle will do the job in a pinch.
May 10, 2019
4 months ago
Great bang for the buck
Order took a week to ship, once shipped arrived in a few days. Looks awesome and have put 500 rounds through it without a single problem! Fit and finish is really nice and for the price you cant beat it.
May 10, 2019
4 months ago
First ever AR build
First AR build. Put the kit on an Aero AR-15 lower. Went about as smoothly as can be expected. Cycles great, especially with a little lithium grease on the lower assembly. Trigger is better than expected. Finish is chalky. Fit is a touch looser than I'd prefer.
May 10, 2019
4 months ago
Highly recommend, great product
Great kit the gun fires dead on, and looks great, I have had no issues with the functionality of the firearm. Only issue assembling was the bolt catch was a little out of spec and wouldn’t go into the lower, took a small 1/8” piece off with grinder wheel with the dremel and it work correctly. Little quality control problem but I won’t let that give it a bad rating.
Topped with Sig Romeo
Topped with Sig Romeo
May 9, 2019
4 months ago
I love it, I was able to build it to be compliant with New Jersey without having to go through a bunch of stupid hoops
Couldn't be happier, shoots with barely any muzzle rise with the right compensator. Very low recoil
Couldn't be happier, shoots with barely any muzzle rise with the right compensator. Very low recoil
May 9, 2019
4 months ago
This was an awesome kit for my first build. Very simple, quality parts, very sturdy and reliable. I’m extremely happy with my products. Yu
May 8, 2019
4 months ago
Everything fit together perfectly and it shoots nice and smooth. I’ve only shot about 90 rounds through it due to the cold weather -5 degrees. Look forward to shooting when it warms up
March 8, 2019
6 months ago
Good kit
Good kit. Accurate 1" groups at 200 yards. Assembled like a dream. Really needs to include anti walk pins. Otherwise great product
March 8, 2019
6 months ago
So all we need is a stripped lower receiver to complete build?
March 4, 2019
Response from Palmetto State Armory
Thank you for contacting Palmetto State Armory. After purchasing this rifle kit, the only additional items you will need to get to the range are the lower receiver, a magazine, and ammunition. If you have any additional questions please feel free to contact our customer service department at 803-724-6950.
March 11, 2019
David M
Excellent platform to Customize
I love this package used it to build my first and second Ar Spare parts galore once you start customization.

Pros: Excellent construction and fit and finish, BCG is top notch, EPT trigger is crisp and gravel free. The magpul extras really add tremendous value to the build over half the total cost is in magpul parts alone.

Cons: Over gassed straight out of the box not a huge issue I installed an adjustable gas block to remedy it but to most users this would not be an issue in the slightest.
Daniel Defense Furniture
Cabelas 1-6 power AR scope
February 10, 2019

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