PSA 16" 5.56 NATO 1/7 Mid-Length Nitride 13.5" M-Lok MOE EPT Rifle Kit with MBUS Sight Set - 5165447630

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PSA 16" 5.56 NATO 1/7 Mid-Length Nitride 13.5" M-Lok MOE EPT Rifle Kit with MBUS Sight Set - 5165447630


Quick Overview

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SKU: 5165447630
UPC: 5165447630
MFR#: 5165447630

Barrel Length: 16"
Gas System: Midlength 
Barrel Profile: A2
Barrel Steel: 4150 Chrome-Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
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 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 13.5" 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
Overall Length: 24.5"
Weight: 4.0 lbs

Add To:

Barrel: 16" 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with with a .750" diameter low-profile gas block, PSA 13.5" 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. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.

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

Includes: Magpul MBUS Sight Set, Black 

SKU: 5165447630
SKU 5165447630
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 5165447630

Questions and Answers

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Browse 12 questions Browse 12 questions and 32 answers
Do I need to buy anything else for it to fire. Or is this a complet set?
BEST ANSWER: You will have to buy a lower receiver. You can buy one through Palmetto or possibly through a dealer in you area. You will have to fill out paperwork and they will do a background check just as if you were buying a complete firearm because the lower has the serial number. if you buy one through Palmetto you will have to have it sent to an FFL dealer in your area and pick it up from them.
lower kit went together well, but i have an extra spring and detent pin. Does it ship with an extra of each or have i missed something???
Brian on May 30, 2018
Does the upper come assembled?
bones2782 on Apr 25, 2018
BEST ANSWER: Yes it does! And while it comes packaged very clean, I would suggest disassembling the BCG completely, cleaning the components, and oiling them with your gun oil of choice.
Can the flash hider be removed from the barrel?
Chris M on Apr 25, 2018
BEST ANSWER: It is unlikely that the flash hider has been welded or soldered to the barrel, which if it were done would make its removal difficult. Flash hiders are typically permanently attached using these methods in order to establish the minimum length (16") on a barrel that would be otherwise legally too short. Since this barrel by itself is 16", the flash hider is almost certainly thread-tightened on and can be removed.
Is this mil spec or commercial spec?
Mikey on Apr 29, 2018
BEST ANSWER: Mil spec.
I'm looking to swap out the barrel that comes with this kit. My question is, does PSA use some kind of Lock-Tite on the barrel nut or other adhesive? I'm having trouble trying to get the barrel nut off. Any Help would be appreciated. Thanks
Tyler A on Apr 30, 2018
BEST ANSWER: I had to take mine to gunsmith to remove. I was trying to change out handguard. Barrel nut would not move.
What kind of mount do I need to look for to get a bipod for this kit?
harshuy236 on Jul 20, 2018
BEST ANSWER: Depends on what kind of bipod you’re going to get, if it was me I would get a bipod with a picitanny Mount and buy an M-Lok rail section and install it that way.
Will the upper be shipped to my house or do I have to pick up the upper at an FFL as well?
Dr. Discord on May 13, 2018
BEST ANSWER: This rifle kit will ship to your house, as it is not a serialized item. In order to complete the build and have a functioning rifle, you will need to purchase an AR-15 stripped lower receiver. The lower is the serialized part which will have to ship to an FFL in order to conduct a background check and transfer the item. Link below for the stripped lower.
What is the trigger "rated" at e.g. 5 lb, etc ...I realize this will most likely be an "aproximate" measure, but looking to upgrade with a drop in trigger and trying to figure out which one?
harshuy236 on Jul 26, 2018
Is there any difference between this rifle kit and the one with the SKU 516446780 that's out of stock? Only thing I notice that's different is this one doesn't have "Lightweight" in the description for the handguard, other than that, all the specs seem to match up...
Nick L on Jun 17, 2018
How long is the gun with the stock fully extended?
lolguns on May 22, 2018
What is the weight difference between this mlok free float rail versus the lightweight mlok free float rail?
Axel T on May 21, 2018


4.9 / 5.0
64 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Worth it
Works as advertised. Not a tack driver but will shoot 55 gr pmc decent. roughly 3-4 inch 5 shot groups at 100 yards
August 14, 2018
2 months ago
Excellent workmanship!
You have to be kidding me! Absolutely LOVE it. Added a few personal customization pieces (scope, etc). This baby is a beauty! Range performance was fantastic! Looking forward to more outdoor fun.
August 1, 2018
2 months ago
excellent quality,easy build.
Missing a few pins on delivery,PSA had them to me in a few days. Fires as it should and surprisingly accurate. Money well spent.
July 28, 2018
2 months ago
Great value!
Great value for a quality build kit! I assembled the lower, cleaned the upper and put 120 rounds through it and it ran great. I highly recommend it.
User submitted image
Added Jul 28, 2018
July 28, 2018
2 months ago
Heavy for heavy duty.
Great setup. Aesthetically? There are better looking rails out there on PSA. But this is definitely more your tank than your Ferrari. So with that said? I really appreciate this. Good fit and finish and performs well. Haven’t taken it past 50 yards, but that dog will hunt. Wish it was Nitride rather than Phosphate though. Can’t have em all.
July 24, 2018
1 month ago
This build rocks
Build was rock solid, I had to add a maglock w/patriot pin as I'm in CA ...fired solid after that ..I went ahead and added a vortex eagle 1-6x24 scope and a bipod to get her to really rock-n-roll!!
Added a maglock w/patriot pin (in CA) a vortex strike eagle 1-1x24 scope and a bipod ...she rocks!!
Added a maglock w/patriot pin (in CA) a vortex strike eagle 1-1x24 scope and a bipod ...she rocks!!
July 21, 2018
1 month ago
Add a lower and build a rifle
Great kit! Upper is a quality unit, LPK went together with zero issues. Enhanced Polished Trigger is a huge improvement over milspec! Not a match trigger by any means, but also a lot less expensive than, say, an Elftmann SE.
July 21, 2018
5 months ago
If your thinking about building an AR do it. Was very enjoyable putting everything together myself. PSA sells a great product, ships fast. I can’t say enough good things about them. Can’t wait to start my next build now.
This was my first AR build. Extremely happy with how it turned out. PSA sells great products.
This was my first AR build. Extremely happy with how it turned out. PSA sells great products.
July 19, 2018
1 month ago
Great value
First purchase for an upper from PSA, and am very pleased.
Good looking product, and a lot of value for money spent.
Great place to start your addiction.
July 18, 2018
2 months ago
I love this setup. Killer deals on everything.
OMG... as a pistol guy this is my 1st AR. Easy and fun to build. I have the Vortex SPARC AR red dot and 3 x magnifier set co-whittness with the mbus b/u sights. So much fun to build and shoot. Great deals on ammo and mags. Cannot go wrong
User submitted image
Added Jul 18, 2018
July 18, 2018
2 months ago

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