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PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit With MBUS Sight Set, Gray - 5165449537


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: 5165449537
UPC: 5165449537
MFR#: 5165449537
  • 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" 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
  • Barrel Marking: "5.56 NATO 1/7 FREEDOM"

Add To:

Barrel: 16" 4150V Chrome Moly Vanadium steel  Freedom 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. Roll mark on barrel reads "5.56 NATO 1/7 FREEDOM"

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: 5165449537
SKU 5165449537
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: 5165449537

Questions and Answers

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Browse 18 questions Browse 18 questions and 32 answers
what is the difference between the CTR EPT and this just EPT version? I know the EPT stands for enhanced polished trigger. what is the CTR?
Benjamin C on Sep 30, 2018
BEST ANSWER: Yes,as long as you meet the requirements.
Is there an option to change the bolt carrier group to a Nickel Boron?
Bryan M on Sep 11, 2018
is the barrel 14.5 or 16 without muzzle device?
anthony w on Sep 14, 2018
BEST ANSWER: 16 without
What special tools if any do I need to assemble this ?
Steve T on Sep 25, 2018
BEST ANSWER: Or, skip the hammer & punches and use a Knipex Pliers Wrench. It acts like a hand press to slowly but surely drive in roll pins without risking a slip of the punch that could scratch the finish on your lower.
Is the A2 flash hider pinned?
jdor233 on Sep 13, 2018
BEST ANSWER: No, just torqued with a crush washer.
Does everything come with this rifle kit or will I need to buy a stripped lower to go with this?
Tyler P on Jul 9, 2019
BEST ANSWER: You will need to purchase a stripped lower separately to finish the build. I personally have this exact upper and I love it. Very comfortable rail. Functions perfect out of the box.
I notice this comes with the PSA Enhanced Polished Trigger (EPT) FCG. Is that the same as the PSA single stage trigger?
john d on Oct 24, 2018
BEST ANSWER: If by "PSA single stage trigger" you mean their "mil-spec trigger", then no, EPT is single stage also but much smoother, I have both and EPT is much nicer.
Is there anything else you need to complete the assembly?
Alan R on Sep 13, 2018
BEST ANSWER: You might need a torque wrench if your barrel nut wasn't torqued up like mine.
Is this rifle mil spec?
Rhys P on Nov 13, 2018
Since the barreled upper cones assembled, I woukd expect the headspacing was verified at assembly by the PSA factory. True? Or do I need to verify before attaching the upper once I build out my lower receiver?
SouthDoug on Oct 22, 2018
BEST ANSWER: I milled my lower installed the kit and slapped the upper on then headed to the range no issues shooting moa groups, if that answers your question.
can this item ( kit ) be shipped directly to purchaser ?
stick1945 on Sep 27, 2018
Can a rail be mounted to the bottom side of the hand guard ?
Timfromnewyork on Sep 16, 2018
Is the charging handle ambidextrous?
Bryan M on Sep 11, 2018
BEST ANSWER: Nope just comes with a standard charging handle
The overall length says it's 24.5", but federal law for a rifle is 26". Am I missing something, or would I have to register this as an SBR?
Bob R on Jun 11, 2019
PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit With MBUS Sight Set, Gray - 5165449537
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PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit With MBUS Sight Set, Gray - 5165450038
PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Classic Rifle Kit w/MBUS Sight Set
Can I buy this item if I live in California??
Miguel R on Nov 3, 2018
Is the upper receiver already assembled?
marlu c on Nov 2, 2018
Do you Ship upper parts to Massachusetts?
Brian V on Sep 11, 2018


4.8 / 5.0
40 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
10/10 would recommend to anyone that loves freedom at a great deal.
Runs great with anything I’ve put through it. Topped off with a vortex sparc with the included back-up sights. It rings steel every trigger pull.
User submitted image
Ideal setup for home defense
March 30, 2019
10 months ago
Cheap overall and no justice done with the moe stock. Get the CTR or don't bother.
The stock is a loose piece of junk and the upper is good for 3.5 moa with 77gr match on a good day. You get what you pay for. Cheap overall and no justice done with the moe stock. Get the CTR or don't bother. Also, plan on swapping out the barrel if you are concerned with the level of accuracy an AR is supposed to have. Maybe try their AK? Couldn't be much worse in that department
February 4, 2019
10 months ago
Response from Palmetto State Armory
We do apologize for that. We warranty our 5.56 NATO barrels for a maximum 3 MOA. If you feel like you are not receiving this level of accuracy, utilizing a 10x scope, a rest, match ammo, and proper shooting technique, please contact Customer Service so we may resolve this issue.
February 5, 2019
Casey S
Ran like a champ.
Ran about 500 rounds of federal through it with the stock BCG then ran another 500 with a nickel boron I bought from PSA. No issues whatsoever. Added a romeo 5 and a 3x magnifier for optics and made a couple of other quality of life improvements like the B.A.D. lever and ambi safety. Overall it's hard to beat PSA's price for quality. Really loving this AR.
Ended up being a fun project
Ended up being a fun project
January 7, 2019
8 months ago
Very happy with my purchase. Put over a 1000 rounds through it without an issue.
January 5, 2019
8 months ago
Great Kit
Great looking upper and super nice that it came with the Mbus sites.

I put a few thousand rounds through it and this upper didn’t feel like it got as hot as some of the other uppers I’ve used.
User submitted image
Added Dec 29, 2018
December 29, 2018
8 months ago
Fantastic kit!
Great product. Shot a few hundred rounds thru it, no failures whatsoever. Fit and finish is good. Highly recommend.
December 28, 2018
8 months ago
Great product
Great products always buy from palmetto, I shop here exclusively
December 27, 2018
8 months ago
A pleasure to do business with
Quality product, really, really fast shipping.
December 27, 2018
8 months ago
Overly Satisfied
I was more than satisfied with the quality, fit, finish, and value of this kit.
User submitted image
User submitted image
December 8, 2018
9 months ago
Great buy, very sturdy, easy to assemble, I would buy again.
December 6, 2018
8 months ago

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