Phosphate 13.5" ar rifle kits with mbus

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PSA 16" Mid-Length 5.56 NATO 1:7 Phosphate 13.5" Lightweight M-Lok MOE EPT Rifle Kit with MBUS Sight Set, Gray - 5165449557


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 (CA Health and Safety Code Section 25249.6).

SKU: 5165449557
UPC: 5165449557
MFR#: 5165449557
  • Barrel Length: 16"
  • Gas System: Midlength 
  • Barrel Profile: A2
  • Barrel Steel: 4150 Chrome-Moly Vanadium
  • Barrel Finish: Phosphate
  • 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" 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
  • Overall Length: 24.5"
  • Weight: 4.0 lbs

Add To:

Barrel: 16" 4150V Chrome Moly Vanadium steel  phosphate 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" 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. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.

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

Includes: Magpul MBUS Sight Set, Black 

SKU: 5165449557
SKU 5165449557
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: 5165449557

Questions and Answers

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Browse 8 questions Browse 8 questions and 26 answers
How do you mount a forearm grip with no rail underneath?
Denny on Sep 22, 2018
BEST ANSWER: Just need a Mlok grip. Works great.
Is a stripped lower all this kit needs to make it operational?
Hootie on Nov 7, 2018
BEST ANSWER: Yep, that's it! Well...that and a little time and patience. I had an experienced friend help me through the process and had a completed AR in a little over an hour.
Does it get ship to my house or do I have to pick it up at a gun store?
David T on Sep 27, 2018
BEST ANSWER: There’s no lower on this which is the only serialized part that’s required to go thru a FFL. So it should ship straight to your door.
It’s says gray, is that the grip only?
Jason on Sep 17, 2018
BEST ANSWER: The buttstock, grip, and trigger guard are all grey.
So I need to know is my Purchase going to be sent or not if not I would like to know ???
Thank You SSGT Timmy Schmidt Retired Air Force
Timmy S on Sep 18, 2018
BEST ANSWER: Ive been buying from psa for years and have always got my packages quick...the longest was 4 days not counting weekends
Is this free shipping here in hawaii?
Patricio S on Oct 10, 2018
Is this free shipping un hawaii?
Patricio S on Oct 9, 2018


4.8 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
okay for the money
This 1/7 twist barrel won't shoot anything lighter than 60 grs with any kind of acuracy. The common 55 gr. fmj is a crapshoot. some bullets go where you want them to go, some don't. The upper functions great with anything I put through it, some just not very accurately.
January 8, 2019
7 months ago
Love this kit
This is my fourth build with this kit and its the best for the price for sure. Just add your lower and its complete.
December 12, 2018
7 months ago
Nice quality, would definitely buy another
December 10, 2018
7 months ago
Great quality as always and good price
December 9, 2018
7 months ago
Really really good kit
I bought the AR15 Rifle Builders Manual off Amazon. I had to buy some tools. Within a couple of hours I had a nice AR ready for the range. The Magpul pistol grip was a real pain to seat. I had to do some filing on it. It is a bonus that the upper is already assembled.
December 9, 2018
7 months ago
Great AR15 rifle kit.
Great kit. Every thing I need except a stripped lower. Very happy with the rifle overall.
User submitted image
Added Nov 27, 2018
November 27, 2018
8 months ago
Very nice kit, even before I switched out some parts.
I've only put about 200 rounds through it so far but its been great. The EPT trigger seems to be worth every damn penny of the $30 that PSA sells them for separately. The rail is very nice. Judging by the MI the I noticed on the rail it's most likely a Midwest Industries rail. But it seems slightly different than any currently offered MI rails, so it may be a design made just for PSA. The Magpul furniture is exactly what anyone familiar with Magpul would expect. Sure Magpul isn't always the best but they make very good stuff and at prices that most people can afford. I did switch out a few parts on this build. First was the mag release, installed an Armaspec extended release purchased from PSA. Second was a Seekins enhanced bolt catch that I had laying around. Third was a Magpul ACS-L stock, also had laying around. And the last was a Magpul K2+ grip that I purchased locally after trying different grips.

But everything in the PSA kit installed as it should, has functioned well so far, and accuracy was as good as I can personally expect using a Sig red dot (or the included MBUS) while shooting standing/unsupported. I plan to either buy a magnifier for my Sig red dot or install a scope, but I have no doubt that the accuracy will still be acceptable.

Oh and if you're accustomed to shooting AR-15s with a carbine length gas system, I can now highly recommend trying one with a mid-length gas system. A 5.56 carbine length AR doesn't have a terrible amount of recoil but a midlength is just that much smoother. Iss almost as nice as some or the $2000+ gas-piston ARs that I've shot. Just very smooth and gentle recoil. Makes getting back on target quicker.
November 26, 2018
7 months ago
Can’t complain about the gun at all.. every thing went together perfectly .. put the open sights on it an shot it from 40 yards it was dead center 4 inches low I was very impressed
November 18, 2018
9 months ago
PSA Pretty Sweet and Awesome
Can't beat the price and quality put 200 rounds through it this weekend not one misfire or malfunction due to the rifle.
Awesome Price
Looks Great
November 14, 2018
8 months ago
This was my first purchase from palmetto State armory , I received the package faster than expected and it was easy to assemble and of great quality . I'm writing my wish list now !!!
November 3, 2018
8 months ago

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