10.5" lightweight mlok upper

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PSA 10.5" 5.56 NATO 1/7 Nitride 10.5" Lightweight M-Lok Upper - With BCG & CH - 5165449682


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

SKU: 5165449682
UPC: 5165449682
MFR#: 5165449682

Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
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: A3
Handguard Type: Lightweight M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 19.5

Add To:

Barrel:  10.5" Chrome Moly vanadium steel, melonite treated for durability and chambered in 5.56 NATO with a 1 in 7" twist rate. Carbine length gas barrel is finished off with a PSA 10.5" Lightweight M-Lok Rail, a 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: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.

SKU: 5165449682
SKU 5165449682
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165449682

Questions and Answers

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Browse 12 questions Browse 12 questions and 15 answers
If you screw off the flash hider, can you screw on a silencer without it touching the hand guard?
Michael M on Oct 9, 2018
BEST ANSWER: Would depend on your mount and suppressor. Might be better off with something that has more barrel length exposed past the handguard.
Are the gas blocks pinned or dimpled in place?
Dana T on Dec 24, 2018
BEST ANSWER: Mine was not but I use an adjustable GB in place of the OEM.
What is the inner diameter of the handguard? Trying to find out if I can add a kak flash can to this upper.
Ronnie C on Nov 1, 2018
BEST ANSWER: I would TRY the "slim" kak flash can.
Is this still considered a pistol?
Big joe on Dec 26, 2018
BEST ANSWER: As long as you put it on a pistol lower.
how many M LOK slots are available on the bottom?
John W on Jan 4, 2019
will this muzzle device fit onto 10.5 inch barreled uppers with 10.5 inch handguards without touching/ interfering with the handguard?
david f on Aug 4, 2019
PSA 10.5
PSA 10.5" 5.56 NATO 1/7 Nitride 10.5" Lightweight M-Lok Upper - With BCG & CH - 5165449682
PWS CQB Comp 5.56  3CQB12A1
PWS CQB Comp 5.56 3CQB12A1
BEST ANSWER: David. I have one on a Anderson 14 in. If the barrel extends .50 to 1 in it should work fine. The comp.should clear the inside of forearm.
I have a Rugged Suppressor Razor with a muzzle device 1.9" will that be enough room to run my suppressor on this upper? The can is 1.5" in diameter.
Android556 on Feb 11, 2019
BEST ANSWER: From what I can measure you only have 1.25 ID with this hand guard. I'd get the shorter hand guard if I was going to run a can with this upper.
can this upper use linear muzzle devices like the pws cqb comp without touching/interfering with the handguard?
david f on Aug 4, 2019
PSA 10.5
PSA 10.5" 5.56 NATO 1/7 Nitride 10.5" Lightweight M-Lok Upper - With BCG & CH - 5165449682
PWS CQB Comp 5.56  3CQB12A1
PWS CQB Comp 5.56 3CQB12A1
BEST ANSWER: Yes it's no problem it will work fine. I have found out that the new concussion forward muzzle brakes are much nicer to shoot. But what you're asking will work just fine on there
Can you ad s flash can to this later?
Dennis M on Jul 5, 2019
BEST ANSWER: Yes you can, it can accommodate most flash cans and suppressors. But to be sure to check measurements before purchasing. I hope this helps you
Will this upper be compatible with your Freedom Classic lower. Asking for a friend? πŸ˜‰
Michael A on Mar 1, 2019
What lower do you recommend to use with this upper?
Michael A on Mar 1, 2019
BEST ANSWER: I'm using a Anderson lower but I also have a Palmetto lower. Both of these fit perfectly with this upper. Both function flawlessly and are very accurate.
Is this a full auto bolt carrier?
corrado v on Jun 7, 2019


4.7 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
My new go-to gun
I love this offer I highly recommend it the fit and finish it's perfect the accuracy is at least as good as a 16 in great. I've been trying to time it right for when it was in stock and I had the money finally I did love it
August 18, 2019
7 months ago
Without the detent, mine works great.
Recieved my upper along with my lower. Passed function tests with flying colors. Once i got to the range only the first round after charging would fire, then it would jam. Stripped the upper from the lower and the buffer spring shot out and the detent pin was lodged in my trigger group. Replaced the detent and it happened again. Removed detent all together and the gun functions smooth as butter.
Keep this kind of stuff in mind for the price range. I would still recommend this thing if youre on a budget.
August 4, 2019
2 months ago
Response from Palmetto State Armory
Thank you for contacting Palmetto State Armory. If you buffer tube detent is popping out, you likely do not have your buffer tube screwed in far enough. Try tuning the tube another 1/4 turn until you can push the detent down and it does not eject from the lower receiver. If you continue to have issues, please contact customer service.
August 5, 2019
David M
Fine quality upper
The Ohio have yet to have a chance to take it to the range because of work the fit and finish of everything is perfect if it performs like this on the range as it shows it and in its fit and finish I will continue to do more purchases from Palmetto State armory
July 21, 2019
1 month ago
A minor hiccup, corrected quickly by PSA
I bought this to put on a PSA pistol lower that I've had sitting around for a few months. When I first went out to fire it, rounds wouldn't cycle and had to be manually charged after every shot. I've never done my own build so I didn't think to check the gas block until I got home and went to put it back in the safe, at which point a set screw fell out and I heard the gas block slide down the barrel when I tilted the rifle upwards.

I've heard that these are finicky and I've never installed or adjusted one myself, so I sent it back to PSA and got a replacement without any issues or headaches (phone customer support was great).

Since getting the upper back, I've put 300 5.56 rounds through it and ~1,000 .22 rounds with a CMMG .22lr bravo conversion kit. No issues, no complaints and PSA is great for "bang" for your buck.
July 17, 2019
3 months ago
It looks good, shoots good, and cost under $400πŸ‘πŸ½πŸ‘πŸ½πŸ’―πŸ’―
It took awhile to get the upper, but I luv this rifle and how it shoots. Yes I would recommend PSAπŸ‘πŸ½πŸ‘πŸ½πŸ‘πŸ½
The lower rifle is all PSA AR 15 build parts I put together for under 400. I luv this rifleπŸ’―πŸ’―
The lower rifle is all PSA AR 15 build parts I put together for under 400. I luv this rifleπŸ’―πŸ’―
July 2, 2019
3 months ago
Runs great, looks great
Direct fit to a built lower and ran perfect without any issues first time. Great home defense platform
July 2, 2019
3 months ago
Awesome product at an friendly price
The upper is fully functional with zero failures during break in.
User submitted image
Added Jun 14, 2019
June 14, 2019
3 months ago
I give my 10.5 inch 5.56 upper a 5 star rating
Its very well made and seems very sturdy. It's used on a dedicated lower that houses it and a 16" wylde upper, also a PSA product. I have nothing but respect for the PSA family of fear.
May 14, 2019
5 months ago
Perfect upper!
Truck gun is now finished thanks to this beauty! Excellent quality upper! Highly recommend PSA!
User submitted image
Added May 5, 2019
May 5, 2019
5 months ago
I would recommend this uppper to anyone.
Excellent, very smooth operating , fit and finish first rate
May 4, 2019
5 months ago

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