PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride  7" Lightweight M-Lok Upper w/o BCG or CH - 516447044

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PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-Lok Upper w/o BCG or CH - 516447044


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.

SKU: 516447044
UPC: 516447044
MFR#: 516447044

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 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 7" M-Lok Lightweight Free Float Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle Included: No
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.

This upper does not include BCG or charging handle.

SKU: 516447044
SKU 516447044
Brand Palmetto State Armory
Daily Deal N/A
Daily Deal Expires N/A
Youtube Video N/A
Free Shipping? N/A
SKU: 516447044

Questions and Answers

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Browse 1 question Browse 1 question and 5 answers
Can a grip be mounted underneath?
Josh13 on Sep 3, 2018
BEST ANSWER: Mechanically yes with m-lock adapters. Legally No! This makes it “any other weapon” by ATF.


5.0 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great Upper
I am very pleased with this upper, the fit and finish is amazing , it compares to $700+ short barreled upper sold everywhere else.
I installed it on PSA lower and shot it with zero malfunction, very Accurate and amazingly it handles just like a full barreled AR.
July 15, 2018
7 months ago
Great upper, even better price and fast shipping!
My department decided to suppress our duty rifles. We chose this eight and a half inch barrel upper assembly. Rifle came in assembled and ready to go . dropped in my BCG and CH from my other rifle. Put a cheap red dot on it for testing. Threaded up the black Ace armory po boy suppressor. Without any boresight or testing. Gun was hitting gong at 300 yards consistently. Can't wait to mount a decent optic and see what kind of groups we are getting out of the suppressed eight and a half inch barrel. My only complaint was that a couple days after i purchased it, they put it on sale for sale price with BCG and CH
Black ace po'boy arrived and ready to be mounted
Mocked up the gemtech quicksand on it,  while waiting for the black ace po'boy
July 8, 2018
3 months ago
Great 22LR conversion pistol
Bought this for a dedicated 22LR conversion pistol, combined it with the SMMG Bravo conversion BCG, a new stripped Anderson lower, some leftover guts from previous builds, and a PSA AR15/PA10 EPT - Enhanced Polished Fire Control Group - 507797. IT WORKS GREAT! no need for a buffer tube with the 22LR ran hundreds of different types rounds through it and almost no issues (it is a 22LR). Added an el-cheap-o red dot I could not be happier with an AR pistol that my wife and pre-teen love to shoot.
Palmetto Upper turned into 22LR Pistol
Palmetto Upper turned into 22LR Pistol
June 8, 2018
Quality built
Have only put 60 rounds down it but love it. Very accurate for the 40 yards if put it too so far. Amazing finish, and looks sharp with a new brake, angled foregrip, ambi charging handle, and PSA’s NiBr bcg. Only thing is there’s a little play between it and the lower. Bought the lower and parts kit from them too.
May 4, 2018
5 months ago

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