PA10 Railed Upper, Right Side View

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PSA Gen2 PA10 20" Rifle Length .308 WIN 1:10 Nitride 15" M-Lok Upper with BCG and CH


Quick Overview

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: 516447156
UPC: 516447156
MFR#: 516447156

Barrel Length: 20"
Gas System: Rifle-Length
Barrel Profile: Heavy Profile
Barrel Steel: 4150V Chrome Moly 
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 308 Winchester
Twist Rate: 1:10
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile gas block
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: PA10 Gen2
Handguard Type: PSA 15" M-Lok Free Float Rail 
Bolt Carrier Group Included: Yes
Charging Handle Included: Yes

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New and improved Palmetto State Armory PA10 Gen2 308 Upper is fully assembled and ready for your complete PA10 Gen2 Lower!

With streamlined styling and improved function, the new and improved PSA PA10 is here.  The Gen2 model offers an enhanced chamber and extraction, with a more modern appearance.  

Barrel: Machined from 4150V Chrome Moly Steel and nitride treated for accuracy and durability.  Barrel is chambered in 308 Winchester with a 1:10 twist rate and operates with a rifle-length gas system.  Upper is paired with a Palmetto State Armory 15" M-Lok free-float rail, low profile gas block, and an A2-style muzzle device.

Upper:  Precision machined from forged 7075-T6 aluminum, then Black anodize hardcoated to MIL-8625 Type 3 class 2.   

Bolt Carrier Group:  9310 steel bolt assembly, nitride treated for durability.  8620 carrier, nitride treated, with a nitride treated gas key properly staked with grade 8 fasteners.  Charging handle is also included.

The Gen2 PA10 receivers are functionally compatible with the Gen1 upper receivers, however we recommend matching Gen2 lowers to Gen2 uppers for best appearance.  There are external cosmetic differences when mixing Gen1 and Gen2 upper and lower receivers that some may not find appealing.

The AR10 platform does not enjoy a common design between manufacturers, like the AR15. As a result, there can and will be subtle differences in the parts kits of various manufacturers. Some parts, like the fire control group, are shared with the AR15 platform to preserve the options for upgrading. For best results, we recommend only using PSA PA10 parts with our uppers and lower receivers. We do not recommend using other manufacturers parts in our products.


SKU: 516447156
SKU 516447156
Department Uppers
Brand Palmetto State Armory
Daily Deal N/A
Daily Deal Expires N/A
Unit Price N/A
Youtube Video N/A
Free Shipping? No
Free Shipping Qty Label N/A
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SKU: 516447156

Questions and Answers

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Browse 4 questions Browse 4 questions
When will this item be back in stock?
Andrew B on Jan 10, 2019
Is there a union strike at the plant? Has there been a massive fire that has destroyed your manufacturing capabilities? I ask because I bought a lower 6 months ago and have been waiting on a specific upper to come back into stock.
shane r on Nov 12, 2018
So all joking aside, when are you going to get these back in stock?
Darren G on Mar 31, 2019
When will this upper be back in stock? I bought a lower recently but the upper I need has been out of stock for months.
chris t on Jul 28, 2019


4.5 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Solid build with impressive accuracy! Three shooter shot less than 1MOA group.
February 1, 2019
1 year ago
Good BANG for your buck!
Best bargain on an AR10 upper. Shoots MOA or better
January 10, 2019
1 year ago
Great value, but be careful about what lower you use
I have gotten most of my build stuff through Palmetto, as they have high quality gear at reasonable prices, and this is the third upper assembly I have purchased from them (the other two being AR-15s). Just a not of caution, when they recommend that you use only Palmetto lowers for their uppers they mean it. I milled out a DPMS Gen 1 patterned 80% lower for this upper, and I had to modify the upper to get them to mate (I had to order a different front pivot pin than what was in the PSA build kit, and I had to grind off some of the housing where the buffer tube screws in to get it to fit under the charge handle). Still, this upper was about half the price of comparable assemblies, so I'm pretty happy. Waiting for my scope to show up so I can go shoot with it.
User submitted image
Added Nov 30, 2018
November 30, 2018
1 year ago
Accurate reliable great price
Accurate reliable gas system..good fit and finish..keymod is sweet...pretty heavy next upper will be light weight 18"
July 8, 2018
1 year ago
Very Pleased
A little on the heavy end, but quality upper all the way around, >1" group up to 300m. With tables and drop compensation, very accurate out to 1000m (6 inch metal target)
Magpul PRS gen3 stock and custom grip
Magpul PRS gen3 stock and custom grip
June 22, 2018
1 year ago
Great shooter and affordable
I Picked this gun up online and a matching lower for the specific use of groundhogs at long distance.
The pros are with my hand loads using 175 and 180 gr smk and LC brass the gun will group half to 3/4 in with a 6-24 horus scope at 100 yards. So far the longest distance I have killed a chuck at was 576 yards.
The gun has been 100 percent reliable after adj gas block was installed.
The cons. The hand guard was loose and the gun was over gassed. The rifle has some sharp edges on the barrel ext that is hard on the brass. Once these were fixed I am totally satisfied. I liked it so much I bought an upper in 556 and will be getting a lower for the 556 this fall. Overall a good price for what you get. I will be getting another one next year as well. The QC needs a little work at the factory though. Otherwise I would rate it 5/5.
June 10, 2018
1 year ago

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