16" Mid-length Ar 15 build kit

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PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 15" Lightweight M-Lok Classic Rifle Kit With MBUS Sight Set

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Regular Price: $ 649.99

Special Price $ 369.99

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

SKU: 5165450545
UPC: 5165450545
MFR#: 5165450545

Barrel Length: 16" 
Gas System: Mid-Length
Barrel Profile: A2 Style
Barrel Steel: 4150V Chrome Moly
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 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
Hand guard Type: PSA 15" Lightweight M-Lok Free Float
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle included: Yes
Overall Length: 24.5"

Add To:

Barrel: 4150V Chrome moly steel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, nitride treated, and a mid-length gas system. Barrel is finished off with a .750" diameter low-profile gas block, PSA 15" Lightweight M-Lok free float rail, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these 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 Carpenter158 steel. Gas key is secured with grade 8 fasteners and staked. Includes Charging Handle.

Lower Build Kit: Includes the PSA Classic Freedom Lower Build Kit

Includes:  Magpul MBUS Sight Set, Black

SKU: 5165450545
SKU 5165450545
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: 5165450545

Questions and Answers

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Browse 23 questions Browse 23 questions and 38 answers
How well does this barrel hold up compared to a chrome lined one?
grant g on Mar 11, 2019
BEST ANSWER: Having owned both I would say Nitrite is superior in every aspect. Because chrome lined barrels add material to the barrel, Nitride is often more accurate. Nitride is better at corrosion resistance. Nitride also hardens the barrel. Instead of having a soft nickel inside, its a harder nitride chemical treatment. Chrome lined barrels is good marketing.
What is the difference between M-Lok Classic, M-lok MOE EPT, and M-Lok MOE+ EPT?
Kevin H on Feb 5, 2019
PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 15" Lightweight M-Lok Classic Rifle Kit With MBUS Sight Set
PSA 16
PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight Keymod MOE EPT Rifle Kit w/ MBUS Sight Set
PSA 16
PSA 16" 5.56 NATO 1/7 Mid-Length Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
PSA 16
PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Classic Rifle Kit With MBUS Sight Set - 5165448515
PSA 16
PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
PSA 16
PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
PSA 16
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-Lok Classic Rifle Kit w/MBUS Sight Set
PSA 16
PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE+ EPT Rifle Kit w/ MBUS Sight Set
BEST ANSWER: "MOE" stands for Magpul Original Equipment which describes the style of hand guard and rails that make up the rifles accessory platforms. "M-Lok" describes the shape of the slots for attachments. "EPT" stands for Enhanced Polished Trigger which defines that the trigger will be smoother and maybe will reduce trigger pull pressure due to the fact it has polished parts that reduce friction. So, with all this said, I picked the M-Lok MOE style and only purchase accessories that are compatible with this platform on all my ARs so that I can swap things around. I hope this helps.
What’s not included? Will I need just a stripped lower?
King_mervin on Jan 30, 2019
BEST ANSWER: Appears to be that way...
Is the upper receiver already assembled including the bolt assist, gas block and tube?
Daniel on Mar 14, 2019
Is the bolt carrier nitride or phosphate coated?
James M on Feb 11, 2019
BEST ANSWER: usually if it not specified it will be phosphated....
Can it be shipped to California?
Chris p on Apr 1, 2019
Is the bolt carrier group phosphate or nitride coated and HPT/MPI?
Stephen D on Feb 16, 2019
Does this include the parts to fire it on full auto?
Victor G on May 22, 2019
BEST ANSWER: No it does not, since it is illegal to have a full auto weapon unless you have a SOT license with FFL or a pre 1986 registered machine gun.
Will this shoot .223?
Budda on May 23, 2019
BEST ANSWER: Yes. Everything barreled for 5.56 will shoot .223 just fine. Just make sure you don’t try to shoot 5.56 out of something that says it’s barreled for .223 because the pressure is much higher.
Can you add rail sections? Like 9 slot? Or more
Jr R on Apr 15, 2019
BEST ANSWER: Room for 19-21 slots on top. The bottom and sides are wide open for 28 or more slots. This handguard is 15" over a 16" barrel. Lots of room for slots and add-ons.
What do I need to complete this kit? Is the upper built? Will I only need to buy a lower to finish the build ?
Ummer on Feb 17, 2019
BEST ANSWER: You need a bare lower and tools nothing else.
Is this a mil-spec buffer tube?
AWSboys on Jan 16, 2019
Jeffrey P on Apr 3, 2019
Are the stocks that come with these considered bump stocks?
Rusty on Mar 25, 2019
Is this build NJ legal?
Christopher L on Feb 28, 2019
BEST ANSWER: Check your local NJ gun regulations/laws.
Is it possible to fit a mil-spec carbine stock on this mil-spec mid length buffer tube?
Loki- on Feb 13, 2019
BEST ANSWER: Mid-length refers to the gas system not the buffer tube.
Do you pinned and weld the muzzle?
Saroeun Y on Jan 25, 2019
BEST ANSWER: I would say they don’t. Companies only do that with 14.5 inch barrels to make the barrel a “permanent” 16 inches.
Can this ship to residence. Or does it have to be shipped to an FFL?
Fred P on Apr 4, 2019
Can this be shipped to Maryland?
Kawon G on Mar 17, 2019
Does this come already
Joshua H on Mar 9, 2019
Like some others, I am also wondering what else will need to be purchased along with this to make it complete. And can it be shipped to Ca. to my address or does it need to go to an FFL?
Caleb T on Feb 10, 2019
Is the BCG Phosphate or Nitride coated?
William L on Jan 30, 2019
BEST ANSWER: Usually if not specified it will be by default Phosphated


4.6 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
For a first time putting a build together it is perfect
May 20, 2019
2 months ago
Fantastic rifle, U.S Marine approved!
May 18, 2019
2 months ago
After 100 rounds handgurard is coming off so pissed!!
Took forever to get but I realized that they are also building everyone’s upper at the same time. I got the rifle beautiful fit and finish looked good. Went to the range shot 100 rounds and when I was putting it back in the case I noticed my for grip was separating from my rifle extremely upset
May 18, 2019
2 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
May 20, 2019
Casey S
Good value
Good value. Went together very easily with aero lower. No complaints would buy again. Keep at it PSA. Quality for the working man.
May 17, 2019
2 months ago
Nice build.
If you want a good AR-15 at a good price, you can't go wrong with this one.
May 17, 2019
2 months ago
My favorite Boomstick
Great Boomstick very lightweight I already have recommended too many people that have purchased the same set up click click boom
May 12, 2019
2 months ago
My First AR build
As the title says, this is my first AR build. I was a little nervous putting it together, but with patients, a book on how to do it and more than a few trips to YouTube it was an enjoyable time. I ordered the lower a few weeks before the kit so I could paint it. I'm not much of a painter on that small of a scale but with some #9 solvent no one will ever see those mistakes. I'm looking forward to me next range day. THANKS PSA!! BTW whoever had the bright idea to include and extra spring, You also have my thanks.
The cleaned up paint job
All done.  Optics on.
April 14, 2019
Review Question
Looks like a great kit. Altho does this forend allow picatinny rails for assessories to be attached on top bottom and both sides?
March 18, 2019
Great quality and price!
This was my very first AR build, I paired this kit with an Anderson® Stripped AR-15 A3 Lower. I was surprised how easily assembly went without having a vise block. Everything functions as it should. The finish was blemish free, everything was well oiled and perfectly fitted. No loose hardware that I could find. It has ran each round perfectly so far. Palmetto State Armory didn’t disappoint! I will definitely recommend them to anyone interested in building or purchasing an AR.
PSA quality!
PSA quality!
March 8, 2019
Good 16" Build
This was the second PSA build after the 10.5" pistol with the same handguard. The pistol came out great the accuracy is way better than expected and this 16" did not disappoint either. The groups at 50 yards are about 3/4" which is pretty good for my old eyes and a red dot. I just purchased and finished my third and hopefully my final one for while with the same handguard on the 18" WYLDE barrel. I have had very good luck with the PSA kits are extremely accurate for a price.. Very happy with two so far have not shot the WYLDE yet.
User submitted image
Added Feb 22, 2019
February 22, 2019
4 months ago

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