PSA 16" Mid-Length Phosphate 5.56 NATO 1/7 Gray MOE SL Upper With BCG, CH, & Rear MBUS - 516445899

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PSA 16" Mid-Length Phosphate 5.56 NATO 1/7 Gray MOE SL Upper With BCG, CH, & Rear MBUS - 516445899


Quick Overview

SKU: 516445899
UPC: 516445899
MFR#: 516445899
  • Barrel Length: 16"
  • Gas System: Mid-length
  • Barrel Profile: A2
  • Barrel Steel: 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: F-marked Front Sight Base
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Hand guard Type: Magpul MOE Polymer Slim Line Hand Guard, Gray
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: Carpenter 158
  • Bolt Carrier Profile: Full Auto
  • Charging Handle included: Yes
  • Backup Sight: Magpul MBUS Rear, Black
  • Overall Length: 24.5"

Add To:

Barrel: 4150 Chrome Moly Vanadium steel phosphate coated barrel. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a mid-length gas system.  Barrel is finished off with a Magpul MOE slimline gray mid-length handguard,  F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, Shot Peened, High pressure tested, Mag particle inspected,  Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.  8620 steel M-16 profile carrier is chrome lined and phosphate coated.

Includes:  Magpul MBUS Rear Sight, Black

SKU: 516445899
SKU 516445899
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
SKU: 516445899

Questions and Answers

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Browse 4 questions Browse 4 questions and 5 answers
Is the phosphate barrel as durable as Nitride?
Axel T on May 7, 2018
BEST ANSWER: in the real world, nitride more durability.
Can I put a bayonet on this upper?
Jeff N on Apr 15, 2018
BEST ANSWER: yes, on midlengths they fit fine.
I am thinking of purchasing 516445899 a complete upper, I have an Anderson stripped lower, and a magazine. I wanted to make sure that this will complete everything I need for a complete operational rifle?
Brandon T on Jun 24, 2018
PSA 16
PSA 16" Mid-Length Phosphate 5.56 NATO 1/7 Gray MOE SL Upper With BCG, CH, & Rear MBUS - 516445899
PSA Classic Lower Parts Kit, Black - 6983
PSA Classic Lower Parts Kit, Black - 6983
BEST ANSWER: No. You will still need buffer assembly and buttstock assembly. Look a purchasing a lower build kit.
Is the retainer cap on this round or triangular? The front on the gas block and the rear both need to be round to fit the handgaurd I want.
Layne M on Jun 12, 2018
BEST ANSWER: Lane, call them ask. They emailed me a customer to answer your question, but I don't work for them!


4.4 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
great barrel
mounted up to my lower with no issues
July 8, 2018
2 months ago
Get you one!
I really this product. And I have, and will continue to recommend it. Quality workmanship.
July 6, 2018
2 months ago
Great Upper
Great upper for the price.
No malfunctions.
Fit and finish great.
Accuracy is decent.
June 18, 2018
2 months ago
Great Upper from PSA!
This is a great upper receiver from PSA! The fit and finish are solid, and the Magpul MOE SL handguards make this a great choice. Shot this with the irons on the first outing and the barrel was as plenty accurate.
June 13, 2018
3 months ago
Outstanding value easy transaction
Fantastic straight forward. Delay not.
June 11, 2018
2 months ago
Excellent 1st step
These uppers are an excellent 1st step in teaching principles of survival and CQC. Lite easy to aim when a red dot scope is used.
June 11, 2018
2 months ago
Outstanding Service!
The gun that these parts make is Awesome! Yes I am Happy with it! And PSA!
June 11, 2018
2 months ago
Great budget upper.
Great budget upper. Lots more value in this than what you pay.
User submitted image
User submitted image
June 9, 2018
2 months ago
Great piece at an affordable price.
May 26, 2018
2 months ago
Inspect on arrival! (Don’t procrastinate)
First complete upper purchase and I was impressed with price, shipping speed, and quality. Everything was fine but the Front sight post is canted to the left, I changed the uppers thinking it was an alignment issue but alas it is how the post was pinned to the barrel. It would’ve been 4 stars but while I was removing the pins I hammered a punch through my finger....
All said and done, I would probably purchase it again.
May 17, 2018
3 months ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, if you have any issues arise from the craftsmanship of the product, we can either have select parts sent to you for you to replace, or we can have the item brought in, at no cost to you, so we can repair or replace the defective product. Please contact Customer Service so we may resolve this issue.
May 21, 2018
Casey S

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