PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride  7" Lightweight M-Lok Railed Upper With BCG & CH - 5165449728

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PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-Lok Railed Upper With BCG & CH - 5165449728

In stock

Special Price $ 279.99

Regular Price: $ 439.99

Quick Overview

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

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: 5165449728
UPC: 5165449728
MFR#: 5165449728

PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-Lok Railed Upper With BCG & CH - 5165449728

Barrel Length: 8.5"
Gas System: Pistol Length
Barrel Profile: A2 Style
Barrel Steel: 4150V 
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 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 7" Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Charging Handle Included: Yes
Overall Length: 17"

Add To:

Barrel: 8.5" Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a pistol length gas system. This barrel is nitride treated for accuracy and durablility. It is finished off with a PSA 7" Lightweight M-Lok free-float rail, .750" diameter low profile gas block, and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black 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, 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.

SKU: 5165449728
SKU 5165449728
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449728

Questions and Answers

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Browse 6 questions Browse 6 questions and 14 answers
Does the handguard have a QD mount ?
Paul I on Jan 3, 2019
BEST ANSWER: Yes! One on each side
Will this upper work with my carbine style lower?
Don on Oct 26, 2018
BEST ANSWER: As long as it is Mil-Spec. BUT, this is a PISTOL upper. You need to put it on a PISTOL lower. To put it on your carbine lower, would make it an SBR, because the barrel is sub 16". That is a felony.
Does this mean the upper is fully automatic or semi automatic?do I have to go through and FFL to purchase this?
Chris e on Mar 12, 2019
BEST ANSWER: No FFL is required.......I'm assuming your question is related to the "full auto bolt carrier", and no, this does not make this an automatic rifle, but then automatic, or semi has little to do with the upper receiver
Is it legal to build an ar 15 pistol in California?
Edward F on Jan 3, 2019
BEST ANSWER: Since YOUR choices affect that … YOUR Buffer Tube + 17" = OAL
What is the overall length of this upper?
cvjagman748 on Jan 3, 2019
BEST ANSWER: 17 Inches
Total length fully completed with buffer tube and lower assembly?
monte j on May 21, 2019
BEST ANSWER: Since YOUR choices affect that … YOUR Buffer Tube + 17" = OAL


4.8 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Love this pistol l!!
First pistol build. Absolutely love it! Several hundred rounds and no issues.
July 6, 2019
5 months ago
Love this pistol l!!
First pistol build. Absolutely love it! Several hundred rounds and no issues.
User submitted image
Added Jul 6, 2019
July 6, 2019
5 months ago
Upper/receiver seem to be out of spec
Just got my upper from PSA today. I built it on top of an Anderson lower and it wouldn't seat in unless I put some heavy pressure to lock it in. I'm not sure if it's the upper or the lower receiver thats not milled to spec but it seems like the upper ori lower receiver seems to be canted a bit. I have yet to fire some rounds through it. Until then the pistol assembly and the kit looks great.
Not seating in flush
Not seating in flush
June 29, 2019
4 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
July 1, 2019
Casey S
Beware the recoil
I can't say enough how awesome PSA products are. I now use them almost exclusively. This kit was no different. Having built a 300 BO pistol I now wanted a 556 pistol. As I did not intend to use a silencer on this build I decided to go with the smallest pistol barrel length I could. Using a cheap NC Star optic I was able to accurately put rounds down range at 100 yards, the average group was probably around 4 inches or so. Not bad for this shorty but beware the recoil and blast! Yeah, with this short of a barrel you'll get significantly more felt recoil, although not unmanageable, as well as some back blast from the shorter barrel. In fact, I was getting hit in the face with some unburnt powder. Nothing unusual or hard to handle, but unexpected on the first few rounds.
May 13, 2019
8 months ago
Fun, buy one.
Runs great! Lots of fun. I always wear plugs and muffs anyways, so the sort barrel doesn't bother me. Never bothered to test it for accuracy at 100 yards so I can't give it 5 stars.
May 8, 2019
8 months ago
Great product
Great product, I definitely will buy from PSA again soon.
User submitted image
Added May 8, 2019
May 8, 2019
8 months ago
Really good product
I really like my upper. It came in quick and looks great. Just need to get an optic picked out now.
March 12, 2019
10 months ago
Very good fit and finish. Performs flawlessly!
March 4, 2019
10 months ago
Love my new AR Pistol build
For the money.... it's a great value It's Made here in the States.. it does what it supposed to do... for the least amount of buck. Which means I can buy other things...
Thank U Palmetto State Armory for making such a great little product
February 13, 2019
10 months ago
Awesome! Good tight fit and looks badass on my Palmetto pistol lower!
January 25, 2019
11 months ago

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