PSA Gen2 PA-10 20" Rifle Length .308 WIN 1:10 Stainless 15" Lightweight M-Lok Upper w/ BCG & CH

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PSA Gen2 PA-10 20" Rifle Length .308 WIN 1:10 Stainless 15" Lightweight M-Lok Upper w/ BCG & CH


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SKU: 516447385
UPC: 516447385
MFR#: 516447385

Barrel Length: 20"
Gas System: Rifle-Length
Barrel Profile: Heavy Profile
Barrel Steel: 416R Stainless Steel 
Barrel Finish: Stainless Steel
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" Lightweight 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 416R Stainless Steel barrel.  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" Lightweight 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: 516447385
SKU 516447385
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: 516447385

Questions and Answers

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Browse 30 questions Browse 30 questions and 94 answers
What is the weight of this complete upper ?
Freddy L on Sep 27, 2018
Does a heavy profile barrel meet Maryland heavy barrel requirements ?
Chipp on Jun 30, 2018
BEST ANSWER: The MD HBAR requirement only applies to direct impingement AR-15 pattern rifles chambered in 5.56 or .223 (Rem or Wylde). Since this is for an AR-10 pattern rifle and it's not 5.56/.223 it is exempt from the "copycat" definition that Maryland made up.
Will this upper support 7.62 nato ammo? Or just .308 win?
Ryan F on Dec 27, 2018
Compatible with 80 Percent Arms Lowers?
Kenobi Prime on Jul 23, 2018
BEST ANSWER: Mostly Yes, slightly No. An AR 10 is not like and AR 15 in that you get a lot more variation in the AR10, where an AR 15 is almost always interchangeable parts. Now since your are making this 80% lower for the AR 10, this makes you the manufacturer of the lower and you can make your AR10 fit whatever you want it too. This being said if I were you I would buy this upper and then make my lower match it. I lover this upper and now so do 2 of my friends who also bought this upper. I would build to fit this upper.
Is headspace already verified on these completed uppers?
Bibnutz on Jun 16, 2018
BEST ANSWER: Yes, but be careful of what lower you use.
The one I have had a few alignment problems I had deal with.
Does anyone see any reason this .308 upper would NOT fit on a Noreen .308 lower? I know my lower is a DPMS Gen1 pattern, but i haven't been able to 100% confirm that this PSA "Gen2" upper will fit. All signs point to yes, but i'd like to know before i spend the money.
Alex N on Sep 25, 2018
BEST ANSWER: Yes, AR-10s are not "mil spec" thus, there is no universal interchangeability between brands. Let the buyer beware!
I’m still need to the whole ar market, I bought a bushmaster carbon-15 from a friend , will this upper work with that that lower ? Also what else would I need to switch from .223 to this .308? Thank you. We all start somewhere
Ben M on Dec 12, 2018
BEST ANSWER: A .223/5.56 lower will not work with a .308 upper. You would need a complete .308 lower to go with a .308 upper. Very few parts will interchange between a .223/5.56 platform and a AR-10 or SR-25 .308 platform. This also raises the issue that there are two different .308 AR platforms. The ones Palmetto State has are the more common "DPMS" style while some companies, such as Rock River Arms, use another style. The main difference between those is in the lower receiver and how the magazine release is configured and the fact that magazines will not interchange between one platform to another. Stick with the type Palmetto sells if you want easier availability to parts down the road.
does this have an adjustable gas block?
d b on Jul 30, 2018
BEST ANSWER: Nope, but you could easily change it out to the adjustable block of your choice.
When will these be restocked?
William G on Oct 18, 2018
Is the muzzle break interchangeable?
Wesley M on Dec 4, 2018
BEST ANSWER: Yes, the muzzle is threaded (5/8-24)
Can a bi-pod be mounted to this upper?
Randy B on Sep 19, 2018
BEST ANSWER: That should be no problem. You might just need a little m-lok attachment to connect it to. M-lok accessories are easy to come by.
What type of scope are yall pairing this upper with?
Bryan H on Sep 10, 2018
BEST ANSWER: I mounted an SWFA 10 power scope, it's a great scope, but I'm looking for a bolder reticle. I'll be checking with tyborasaurus rex to see what he gives an A or B rating to. That's where you should start. Anything else is a reviewer's hype.
Is this upper compatible with dpms barrels?
Matthew G on Jul 16, 2018
BEST ANSWER: When I emailed them, the answer I got was "While the PA-10 platform is loosely based on the DPMS gen1 profile, we can only guarantee the fit and function of PA-10 parts to other PA-10 parts." So far, I haven't tried anything else, but DPMS style mags fit and function.
I have a Aero Precision M5 lower. Will your upper fit on it?
KarlSan on Oct 26, 2018
BEST ANSWER: I don’t think so. You want to stick to same manufacturer on a 308. Not nearly as interchangeable as AR 15 parts.
Can I switch the barrel out and make this a 6.5 creedmoor?
Colby on Sep 23, 2018
BEST ANSWER: Sure, but you might have to change magazines and/or buffers.
Can you fire m8o ball ammo with this upper?*8
Harvey S on Sep 20, 2018
BEST ANSWER: Yes, M80 ball ammo works fine.
Is this upper compatible with a aero m5 .308 lower?
Randy C on Jul 31, 2018
BEST ANSWER: I didn't realize the AR-10s aren't mil-spec like the AR-15s until after I bought this upper. I tried this upper on 3 different lowers that my local gunshop owner had and none of them were compatible so I ended up ordering a PSA lower and it worked perfect. Very satisfied with the gun.
Do you know if this or other uppers are NJ compliance?
Adam B on Jul 30, 2018
BEST ANSWER: Does NJ allow for an unstaked flash suppressor [allows for muzzle break or suppressor ]?
will an ar 15 armorers wrench work to remove the barrel nut for this?
Jim M on Jul 10, 2018
BEST ANSWER: Yes there is one wrench with multiple sizes that you can get , i wanted to do the same to put a lighter barrel myself.
will this fit under m-lok rail on pa10? Does not indicate the amount of space needed to fit under handrail. Thanks
Nowoodenickels on Dec 24, 2018
PSA Gen2 PA-10 20
PSA Gen2 PA-10 20" Rifle Length .308 WIN 1:10 Stainless 15" Lightweight M-Lok Upper w/ BCG & CH
PSA Custom .750 Diameter Adjustable Gas Block - 116001
PSA Custom .750 Diameter Adjustable Gas Block - 116001
BEST ANSWER: This will fit, although it already comes with one just like it
With this upper work with a blitzkrieg tactical ar10 lower?
d c on Nov 19, 2018
BEST ANSWER: No pa-10 uppers are proprietary to their lowers per take down pins
Has anyone tried pairing the nikon p-series mounts with this upper, if so do they fit or are they too tight to even slide on as I have read that they are with many other uppers?
DJordan on Nov 5, 2018
BEST ANSWER: No problem with the 'P' series. I did switch to the 'M' series to get a 20 MOA slope mount.
Are both lower and upper receiver California legal?
Gilbert T on Sep 28, 2018
BEST ANSWER: Ask somebody from Comifornia and stop wasting time of people from free states.
I have ask this before with no response, can I get one of your 308 upper and change the barrel to a 7mm-08 and everything else function normal ? In other words is this all I need to do to get a 7mm-08 ? Thanks
Freddy L on Sep 25, 2018
BEST ANSWER: Buy a 7-08 barrel and swap it. As long as check head space and have tool to change it want be a problem.
Does this upper work with a polymer 80 lower?
James G on Dec 31, 2018
just receiver ar10 upper and lower. fit well, but trap door wont close. spring pin moves freely. can I fix this?? also can you tell me which picatinny adapter fits on bottom of hand guard, so I can mount a bipod. 20" barrel kind of heavy for off hand shooting. thanks
Dennis G on Dec 27, 2018
What is the Shipping Weight of these Beautiful Beasts ?
Roger B on Dec 17, 2018
Where can I buy PSA 15" Lightweight M-Lok Free Float Rail only? I would love to build another upper for my PA10 lower.
OlyMike on Nov 2, 2018
DONALD H on Oct 30, 2018
I have a PSA PA10 .308 Complete Classic Lower Receiver I bought in 2015. Will this upper fit is with no issues? Thanks!
Brett G on Sep 10, 2018
BEST ANSWER: Yes, if it's a Gen1 lower it might not be as pretty as a Gen2 but it will work just fine. If you don't have a 20" PA10, you need one. I have three.


4.8 / 5.0
87 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Tack Drivers!
As usual, my PSA PA-10 upper and the lower I purchased are AWESOME! 5 shot - 100 yard groups with hand loads go an inch to an inch and a quarter. Even shoots Hornady factory loads into inch and a quarter at 100 yards. Prefers the 150 grain loads. I have built many AR-10 and AR-15 rifles from PSA and all have been good shooters.
Cerakoted in Burnt Bronze
User submitted image
December 29, 2018
2 months ago
Great Deal
My gun club has steel at 200 and 300 yds. Had no problem hitting 6 in gong at 300 yds.........that would be 2 moa. Really nice gun PSA Upper on a PSA lower
December 24, 2018
2 months ago
Accurate but gassy
Solid 1 MAO upper but you can tell it's a $400 upper. It shoots reliably, but the charging handle feels very cheep and sloppy and it's over gassed to where it dent's most of the brass. Even upgrading to an adjustable gas block and raptor charging handle I'll be under 1k for a 1 MOA AR10. Works for me!
December 20, 2018
9 months ago
Like the new style lightweight hand guards
Hand guard feels good and smooth. Haven't shot it yet but sure is pretty
December 10, 2018
2 months ago
Like the new style lightweight hand guards
Hand guard feels good and smooth. Haven't shot it yet but sure is pretty
December 10, 2018
2 months ago
Great product
Awesome great fit and finish made one sexy rifle
Just need optics
Just need optics
November 25, 2018
2 months ago
Don't pass one of these up!
I purchased the complete upper and the complete lower, I caught the complete Magpul lower on sale from Palmetto, I mounted a 3X9 scope on it and went to the range... I love this setup! I should have done this long ago. The thing I have modified on this rifle is, I added a zero impulse muzzle brake. This rifle is a blast to shoot, Do yourself a favor and buy one while they are affordable... I'm hopeful Palmetto will offer this in a .243 version...
Great job!!!
Awesome looking rifle!
A real blast to shoot...
Awesome looking rifle! A real blast to shoot...
November 24, 2018
4 months ago
Better than and more accurate than almost any other and half the price.
Absolutely awesome! The fit and finish are great. No difference in color from upper, hand guard and pa10 lower. Shoots 1 min at 200 yards with good ammo. Is over gassed like others have said. All shells at 2 o'clock and every single one has small dent about halfway up case where they are hitting, and because of the barrel being so big the qd point on hand guard is useless qd hits before it goes in. Love it ordered another one.
User submitted image
Added Nov 23, 2018
November 23, 2018
Read the details.
Exactly as advertised. Well made, I tried to mate up to gen 1 lower, didn't match up, my bad.
November 18, 2018
11 months ago
Great product no complaints
I purchased this for 419 and really like the look and finish. Have now shot over 100 rounds and am pleased with the results. Shoots accurately fitted to PSA lower. This is my 3rd psa ar style rifle and have nothing but good things to say about there products. Excellent price and great quality what more could you ask for
November 18, 2018
4 months ago

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