PSA Gen2 PA-10 20" Rifle-Length .308 WIN 1:10 Stainless Steel 15" M-lok Upper with BCG and CH - 5165447551

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PSA Gen2 PA-10 20" Rifle-Length .308 WIN 1:10 Stainless Steel 15" M-lok Upper with BCG and CH - 5165447551

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Regular Price: $ 719.99

Special Price $ 499.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 5165447551
UPC: 5165447551
MFR#: 5165447551

Barrel Length: 20"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R Stainless Steel
Barrel Finish: Stainless
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 308 WIN
Twist Rate: 1:10
Barrel Extension: M4-style
Diameter at Gas Block: .750
Gas Block Type: Low-profile gas block
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: PA10
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: 416R Stainless Steel, chambered in 308 WIN with a 1/10 twist, rifle-length gas. 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.  Gen1 lowers will be available in the future for those who want a cosmetic match. 

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: 5165447551
SKU 5165447551
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 5165447551

Questions and Answers

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Browse 9 questions Browse 9 questions and 22 answers
What is the weight for this complete upper assembly?
Guest on Apr 20, 2018
I am going to be doing an 80% build and was curious if your uppers are compatible?
Kate S on Apr 12, 2018
BEST ANSWER: As there are no standard specifications for the AR-10 platform, as there are for AR-15, PSA recommends using PA-10 uppers with their lowers, and vice versa. That is the only way to guarantee functionality.
Is the barrel 20” and the compensator, making it 22” ? Or 20” all together?
Matthew H on Apr 23, 2018
BEST ANSWER: A Muzzle device is only counted toward barrel length if it is permanently attached. According to Federal government rules. To correctly measure measure from breach block face to end of barrel or muzzle device if permanently attached.
Would this format fall under armalite 308, LR308, DPMS, or none of the above?
Hendersonb3149 on Jun 4, 2018
BEST ANSWER: Fundamentally based on DPMS, yet not all parts are interchangeable. There’s info on the site to explain this in more detail.
What kind of accuracy can I expect from this upper out of the box? Owners of the 18" are claiming 1-2 MOA. Is this one any better?
Hilge on May 11, 2018
BEST ANSWER: The accuracy is different with all ammunition but I found that Iike federal ammo at 150 gr.
Is this one DPMS compatible?
Michael T on Jun 10, 2018
BEST ANSWER: I'm to understand that it is. As far as the bolt and such, it is DPMS compatible. Regarding the lower, I'm told yes, but have also seen people have clearance issues with the charging handle.
Is the "PSA 15" Lightweight M-Lok Free Float Rail" aluminum or steel?
deric c on Jun 29, 2018
I have not purchased that product and cannot answer the question. I bought PA10
Is the gas block adjustable? Can it be turned completely off?
Gahnew on Jun 10, 2018
BEST ANSWER: Gas block is completely adjustable. A great upper! Have not however tried to close off gas block completly. Have purchased the upper in 6.5 Creedmore and 308 Win.
Hi I bought the PA10 lower for .308 I’m waiting on the 20 inch upper with the inodized steel barrel, any info on when it will be available again?? Thanks
joe g on Jun 5, 2018


4.5 / 5.0
32 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
ar 10 upper
It is a little heavy but can be expected for 308. I shot mine today and I am very pleased with how it feeds the bullets. It is very accurate with 165 nosler handload. I was able to keep it in 10 ring at 100 yards. I really like the fit and finish and accuracy of this weapon! The value is outstanding.
August 14, 2018
3 months ago
Reliable & Accurate!
I haven't had even one, single, solitary problem with this rifle. It has run smoothly & flawlessly over the past 300 rounds. I've read a lot of comments on-line about this particular rifle; some bad, most good. As for my own personal experience, I couldn't be more pleased. I killed 2 deer with it last year in as many, there ya go.
July 25, 2018
Became a fan
I've never been a big .308 fan but my son wanted to build one. This was a quick setup when I paired this with the PSA Gen2 PA10 ACS-L EPT .308 Lower With Overmold Grip, Black. Both were on sale and had the features my son was looking for. The fit and finish were great together. Received it, cleaned it, scoped it and shot it. quickly zeroed at 100yds. I was impressed with the accuracy. We'll be hunting with this rifle this fall for sure. For the money, this is a great setup.
July 17, 2018
2 months ago
Extremely easy and on time
First firearm from PSA. Extremely pleased with the service. Can’t wait to buy another one.
Ready to get out there. Solid rifle.
Ready to get out there. Solid rifle.
July 14, 2018
3 months ago
Excellent product!
Works well with Aero precision lower, has minor gap in between lower and upper. However I did read the disclaimer and knew what I would be expecting.
AR-10 .308 with PSA upper, with Aero Percision lower!
AR-10 .308 with PSA upper, with Aero Percision lower!
July 14, 2018
3 months ago
Gen2 Upper is Awesome.
Love the upper the components seem to be operating as they should! I'm happy with the purchase and will be buying another one in the near future.
July 12, 2018
3 months ago
Gen2 PA10 20" Stainless Steel Upper and G2 PA10 Lower
I don't know what to say other than I love this gun! When I first received it I took it to the range and had significant feed issues. I contacted support (I was the first in line) and talked to a very nice and knowledgeable young lady who told me that I should return the upper and lower for their technicians to look at, which I did. 10 days later I received my parts back. After inquiry, I was told that the upper had bad feed ramps and was replaced. Once received, I immediately took the gun back to the range and it performed perfectly. From beginning to end, I am very happy with the product and support. Support had been a concern since there are a few people out there that, for one reason or another, promulgated a lot of negativity. My experience was totally different and, I suspect this is their normal service. I can't recommend PSA enough.

I've made some modifications to the gun but believe that the base gun performs excellently and was a very good value.

The only recommendations I would have for Palmetto is that their communication improve a little. It would be nice to know when returns are received with an estimate of completion and an email indicating that the item had been shipped with tracking information along with what was the issue with the rifle and what the fix was.

Overall, great gun, good service and not a pocket book breaker. I did that all by myself with the additions.
Precision Armament M4-72 Severe Duty Compensator 7.62mm/.308
Vortex Diamondback Tactocal 3-9x40 Scope
Burris P.E.P.R. scope mount
Nikon P-Series Rings
Luth MBA-3 BLK Stock Set
Other additions
Velocity Triggers Drop in Trigger 3 lb Curved 
BCMGUNFIGHTER Charging Handle AR-308
July 10, 2018
3 months ago
It would get 0 stars if that was possible
There is only one problem with the upper: the hole for the rear take down pin is so large the upper rocks up and down on the lower (a PSA lower) like a see saw in a child's playground. The bolt carrier group might not even fit into the buffer tube in some positions.
The return process seeking a replacement started fairly professionally but has vanished into thin air. The upper was delivered to PSA unused (it was unusable) in the original packaging and with the documentation they requested over ten days ago now and I have heard and seen nothing since. I even sent PSA an email more than three days ago now say that if it was too difficult for them to send me a replacement could they just send me a refund. They haven't replied, nothing, they have disappeared. How does PSA earn even one star for this performance?
July 8, 2018
2 months ago
Response from Palmetto State Armory
We do apologize for that. We checked our system and see that your latest correspondence was dated on 6/19 using this email. Our repairs team has finished with their processes and have sent your upper back to you. It is currently in transit. it is scheduled to arrive to you Friday, 07/13/2018 , By End of Day
July 9, 2018
Casey S
Great value for a fun rifle.
1.5 inch groups at 100 yards after sighting in with the Vortex Viper at around 12x magnification even using cheap steel ammo. Felt recoil wasn’t too bad. It’s a heavy rifle compared to any AR15 or even the 18 inch PA10. Great value for the price. It’s my first PA10. Fun to shoot.
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July 6, 2018
2 months ago
Biggest mistake I've ever purchased
Rifle is terribly over gasses so far I've logged over three hours in 1 call and 2 hrs in another. Had problems since the beginning. they have sent me one replacement buffer didn't fix gas problems waiting on the one that I ask for don't ever expect to get it fixed. I should have read more of the reviews before buying.
July 6, 2018
2 months ago

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