PSA 16" M4 Carbine Length 5.56 NATO 1/7 Nitride MOE FDE Freedom Upper With BCG, CH, & Rear MBUS - 5165448512

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PSA 16" M4 Carbine Length 5.56 NATO 1/7 Nitride MOE FDE Freedom Upper With BCG, CH, & Rear MBUS - 5165448512

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Regular Price: $ 479.99

Special Price $ 269.99

Quick Overview

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SKU: 5165448512
UPC: 5165448512
MFR#: 5165448512
  • Barrel Length: 16"
  • Gas System: Carbine
  • Barrel Profile: M4
  • Barrel Steel: 4150V Chrome Moly
  • Barrel Finish: Nitride 
  • Chrome Lining: None
  • 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: F-marked Front Sight Base
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Handguard Type: Magpul MOE Flat Dark Earth Handgaurds
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: Carpenter 158
  • Bolt Carrier Profile: Full-auto
  • Charging Handle Included: Yes
  • Sight: Magpul MBUS Rear Backup Sight, Black
  • Overall Length: 24.5"

Add To:

Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel. Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine length gas system. Barrel is is finished off with Magpul MOE Flat Dark Earth carbine length handguards, F-Marked gas sight base, and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized for durability. 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, 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 Backup Sight, Black

SKU: 5165448512
SKU 5165448512
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: 5165448512

Questions and Answers

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Browse 7 questions Browse 7 questions and 21 answers
Can I use a 223 caliber with this barrel?
Keyguy707 on Sep 19, 2018
BEST ANSWER: Yes. 5.56/multi are 5.56/223. The only time you wouldn’t want to interchange ammunition types would be if it was a dedicated .223, then using 5.56 could cause problems due to pressure differences between the cartridges.....
Does the front sight come off to put a free floating hand guard ??
Danny O on Jan 4, 2019
BEST ANSWER: If you have the tools to remove the pins, theybcan come out. You may bebbetter off getting a railed upper from PSA and save yourself the work.
Does barrel have chrome lining?
Falco on Nov 22, 2018
BEST ANSWER: Unless stated, the barrels are not chrome lined.
Front sight ??
Danny O on Jan 4, 2019
BEST ANSWER: The front sight is a raised fixed sight, look for the triangle along the barrel. You will need raised scope mounts if you plan on using a scope or the sight will be in your line of view.
What kind of foregrip will work with this upper?
Breon L on Nov 12, 2018
BEST ANSWER: Personally I bought a 2 inch mlok rail and then bought an FDE UTG vertical foregrip. The style that has removable side plates for pressure switches
Does this come with with a stock?
Paully on Dec 9, 2018


4.6 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great Upper
First buy from Palmetto State Armory gun is very accurate out of box finish was perfect bought PSA lower to go with it. Shot several hundred rounds no problem what so ever. I will be buying another.
December 22, 2018
Great upper
Great upper, very accurate, on target without bench at 100 yards, have done 5 palmetto arms builds, all amazing.
October 22, 2018
5 months ago
Price and quality.. !
October 21, 2018
7 months ago
Excellent Upper for the price
Worked right out of the box without issues (with a little cleaning, which was expected). Even the pop up sites were dead on the first time. Very impressed.
October 7, 2018
5 months ago
Great quality, ran it with MOE lower kit in the same color. Aero precision lower ran great on it too. Put 150 rounds down range no issues.
User submitted image
Added Sep 15, 2018
September 15, 2018
4 months ago
Perfect...exactly what I was looking for to put with my Sig lower. Looks great with the matching furniture.
User submitted image
Added Sep 5, 2018
September 5, 2018
6 months ago
I am very pleased with this upper and would recommend it to anyone doing their first build. I put this on my Battlefield Development lower and it turned out to be an awesome first build!
August 8, 2018
7 months ago
The fit and finish are very good. It looks great and so far has functioned without any issues.
User submitted image
Added Jul 7, 2018
July 8, 2018
7 months ago
$$ well spent
Delivery took about 10 days but I totally love it. It looks great and just what I expected.
June 22, 2018
Disappointed. Terrible charging handle and bolt carrier
Disappointed in the quality of the product and the customer service. Received the product and the bolt carrier looks like someone already put over a thousand rounds through it. Dirty with rust and carbon build up. Customer service tech said it was normal Charging handle is hard to pull and feels like it is rubbing against something. I am really disappointed i thought I found a place for all my SON AND I AR NEEDS
June 11, 2018
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.
June 12, 2018
Casey S

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