PSA Gen2 PA10 18" Midlength Stainless Steel .308 WIN 1:10 Rifle Kit - 503654

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PSA Gen2 PA10 18" Midlength Stainless Steel .308 WIN 1:10 Rifle Kit - 503654


Quick Overview

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SKU: 503654
UPC: 503654
MFR#: 503654
  • Gas System: Midlength
  • 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
  • Diameter at Gas Block: .750
  • Gas Block Type: Front Sight Base
  • Muzzle Device: A2 Style Flash Hider 
  • Receiver Material: Forged 7075 T6
  • Receiver Type: PA10
  • Hand guard Type: Classic Midlength Handguards
  • Bolt Carrier Group Included: Yes
  • Charging Handle included: Yes
  • PA10 Classic Lower Build Kit

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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.  

 PSA PA10 18" Mid-length Stainless Steel .308 WIN 1:10 Rifle Kit- 503654

Barrel: machined from 416R stainless steel, chambered in .308 WIN with a 1/10 twist & mid-length gas system.   Upper has a front sight post gas block, Classic Midlength Handguard, and a  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.

Lower Build Kit: PSA PA10 Classic lower build kit.  Everything you need to turn your PSA PA10 stripped lower into a complete lower.

  • 7075-T6 Forged aluminum receiver
  • 18" 416R Stainless Steel barrel
  • .308 WIN Chamber
  • 1 in 10 twist rate
  • Mid-length Gas system
  • A2-style muzzle device
  • 5/8-24 muzzle thread
  • Nitride BCG & Charging handle
  • PA10 Classic Lower Build Kit

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. 



SKU: 503654
SKU 503654
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 503654

Questions and Answers

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Browse 5 questions Browse 5 questions and 9 answers
I realize that not all uppers fit all lowers... depending upon the brand of the lower. Will this PA10 upper fit a polymer 80 frame..without modifications? Has anyone put this PA10 upper on a Polymer 80 plastic frame?
diesel on May 7, 2018
BEST ANSWER: Also, some of the lower parts in this rifle kit do not fit the Polymer80 lower. You should order the Polymer80 LPK for the lower receiver. I had to. I know, extra money, but it's the only way to get it to work. Most of the lower parts in this rifle kit only work in the PSA lower.
Will this fit on a aero precision m5 308 lower?
Adobo on May 29, 2018
BEST ANSWER: I’ve seen on PSA website where they suggest matching their upper assemblies with a matching PSA lower. Will it work with an AP? Maybe. Would you be better off ordering a PSA lower? Yeah.
Am I correct here? If I purchased this item to build an AR-10, the only missing from the kit is the lower frame, so I could purchase item 516445318 when available and would have everything needed for a functional rifle?
Mark B on Jun 4, 2018
PSA Gen2 PA10 18
PSA Gen2 PA10 18" Midlength Stainless Steel .308 WIN 1:10 Rifle Kit - 503654
PSA GEN2 PA10 .308 Stripped Lower Receiver - 516445318
PSA GEN2 PA10 .308 Stripped Lower Receiver - 516445318
BEST ANSWER: A magazine and ammo and your gonna need a rear sight or some sort of optics. And there you go
Is this an 80% kit?
Billy D on May 9, 2018
BEST ANSWER: No, this is not an "80% kit" as the modern lingo goes. This is a build kit that is a complete weapon minus the lower receiver which holds the serial number. An 80% kit would be a full set of parts for a weapon which requires some level of machining to finish the main component (which in an AR type rifle would be the lower receiver).
Is it safe to spot nato 7x62 Millayo in this 308 win barrel ?
Carl B on Apr 19, 2018
BEST ANSWER: I have a 308 barrel AR10 and use 7.62 ammo all the time when shooting for fun. When I need accuracy I use 168 gr 308 HPBT


4.5 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
I am very happy with the kit that I purchased, very good craftsmanship and went together without a flaw, I have now purchased 2 more kits, they are a blast to assemble, thank you Palmetto!!
June 10, 2018
1 month ago
Ok for the money
Have only shot 30 rounds through it and have two light primer strikes.
May 5, 2018
2 months ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, if you have any issues arise from the craftsmanship of the product, we can either have select parts sent to you for you to replace, or we can have the item brought in, at no cost to you, so we can repair or replace the defective product. Please contact Customer Service so we may resolve this issue.
May 7, 2018
Casey S
Rifle kit 503654
Most of the parts fit together like they should. However, three small parts of the lower build kit didn't fit the lower I purchased from another vendor. 1. this kit came with a roll pin to attach the bolt latch and the lower uses a bolt latch screw. 2 and 3. both takedown pins were to short for the lower. For this reason, I give it 4 out of 5 stars.
April 30, 2018
2 months ago
First AR Build
Assembled easily. Fit with Gen 2 lower was tight with no gaps or loose fit between take down pins.
April 28, 2018
2 months ago
Great kit at any price!
AR-10 rifles are notoriously high-priced, but this kit offers the buyer a chance to get into the market reasonably. The fit and finish of the parts is good. The kit is complete and well-packaged. Don't bother with this if you can't put things together or have access to someone who knows what they are doing, but if you have the ability, then this is a great way to get into a rifle.
April 27, 2018
Great rifle kit and fantastic service
I ordered 2 of these kits one fits and fires flawlessly. The other fits well but had a problem with a tight chamber where only about 1/3 of factory rounds would chamber completely. I sent the upper back and in record time received a replacement along with a nice letter of how yes it was a tight chamber and the new upper was tested extensively to make sure there were no problems. Awesome rifles awesome company
July 7, 2017
had problems
I bought this kit and had read the disclaimer in red on the page that this kit might not play nice with other non-psa components. My DPMS compatible lower did not play nice with this kit but I knew that might be a possibility so that's no fault of PSA. The PSA barrel & upper centerline is lower than the DPMS one meaning the bolt will hit the lower on the lower portion of the buffer tube ring on the lower. Even though these were created problems in my setup the PSA kit had it's own problems too.

The bolt didn't want to close well which gave me a few rounds that didn't lock up. I had to use the FA to close the bolt. I had a few failures to feed. All my cases had scratches on them from the chamber which makes me think there are burrs in there and/or it's too tight. The extractor didn't want to pull out unfired cases. The extractor also marred up the rim of cases. Lastly the gas block leaked out onto the barrel.

PSA sent me an RMA so we'll see how it comes back.

One the plus side the trigger in the LPK is the best trigger I have ever owned. All my PSA LPK triggers have varied in feel. Some I've polished so they work decently well. This one right out of the bag is fantastic. It has a heavy enough pull but it doesn't creep nor grind. It just snaps after a very short pull and is really fantastic. I'm thinking it might be luck of the draw but it is very nice.
December 21, 2015
Great kit
Great product. Will continue buying from P.S.A. Shipping was fast And after putting this Pa 10 together with ease. The performance is at 100 percent. Very accurate. Just a great product.
August 13, 2015
Fast delivery and awesome rifle?.
I received my lower in three days (very nice craftsmanship)the upper assy came in about 10 evan though the add said to give them 15 days to ship again real happy.I took that night to assy.but did not have chance to fire until today.I was thinking new tight ready for a jam but evan after 100 rounds it performed flawlessly.bottom line can't wait to build another different cal of course.
July 19, 2015
No Complaints here. Good rifle.
Shipping on this rifle was a little quicker then expected. As always when receiving a rifle kit it gets a complete tear down and cleaning. All parts fit tightly and lubed up nicely. Took it to the local outdoor range and sighted it in on a red dot scope. I loaded with PMC 149 gr. FMJBT and could hold a 1 inch group with not much effort. Like my other .308's it changes a little with the verity of ammo. Figure out what you want to run through the rifle and stick with it. Thanks to PSA and crew for another fine product for my collection.
July 3, 2015

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