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

In stock

Regular Price: $ 899.99

Special Price $ 499.99

Quick Overview

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

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
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 503654

Questions and Answers

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Browse 14 questions Browse 14 questions and 39 answers
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 Stripped Lower Receiver - 516445318
PSA GEN2 PA10 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
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.
Can this be ordered without the fixed front sight?
Tin G on Aug 31, 2018
Will this fit on a aero precision m5 308 lower?
Adobo on May 29, 2018
BEST ANSWER: No , Tried to pin on PSA Gen 2 upper to same aero precision lower and would not fit.
Will AR-15 lower fit a .308 upper?
Hacksaw on Nov 11, 2018
You need the PSA .308 Lower, or an 80% Lower with matching LPK. The PSA LPK will not fit any other .308 Lower Receiver except for the Hammer, Trigger and Safety
Can the front sight be removed is it on there permanently?
DS1992 on Feb 10, 2019
BEST ANSWER: It can be removed by driving out the 2 tapered pins. However it is also the gas block, so if you remove the sight you will have to replace the gas block with a different type
Will this kit work with an Anderson stripped lower?
Gabriel G on Dec 25, 2018
BEST ANSWER: Only if it is a 308 AM-10 lower. Apparently Anderson no longer sells AM-10 stripped lowers.If you have one it should work. PSA has stripped 308 lowers and will work with the PSA rifle kit.
Is this kit compatible with a 308 lower (DPMS gen 1) from 80percentarms?
Stanley W on Jan 28, 2019
BEST ANSWER: Unlike AR-15 the AR-10 may have slight differences between manufacturers for this reason I would only recommend using PSA uppers and PSA lowers for the AR-10 together. They are not all standardized like the AR-15.
Does it have a heavy barrel ?
Is it piston driven ?
Is it a gas block ? If so does the block have a pin to keep it permanently fix ?
I m I using the correct terminology ? Did you get the meaning or understand the questions ?
Thank you in advance , sounds like a pretty good deal
I may buy in a few days
Tyrell M on Aug 27, 2018
BEST ANSWER: This kit is not piston driven, it has a gas block and gas tube, and the gas block has a roll pin to hold the gas tube in place, and set screws to hold the gas block in place.
I had a thread cap and screw come with my psa ar10, what is is for?
Gregory R on Jul 24, 2018
BEST ANSWER: Would that be the small screw for the bolt catch pin? Most AR10 have threaded bolt catch pins instead of roll pins like AR15
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
Is there a carry handle/sight assembly compatible with this rifle available? My DPMS carry handle doesn’t match up.
David J on Nov 16, 2018
Will this work with a Colfax tactical CT-308 lower receiver?
David N on Sep 8, 2018


4.7 / 5.0
17 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great build
I have wanted a semi-auto .308 for a long time, but did not want to have to sell my first born to be able to afford one. After acquiring one of your lowers I ordered this upper kit and assembled the rifle. I have to report that the rifle functioned flawlessly and was easy to sight in. I first sighted in fixed sights and then a Bushnell 4-18 AR series scope. The results were satisfactory under less than ideal conditions. The main thing is the increase in power over the .223 counterpart on the same basic platform. Once I have time to tinker with this rifle, I’m sure my results will improve. I am very happy with this product and the increased firepower the .308 platform provides. Palmetto offers great products at affordable prices so more people can enjoy owning and shooting the AR platform in a variety of calibers. Thanks boys and girls!
August 1, 2018
9 months ago
Very impressed with the functionality and accuracy
July 1, 2018
9 months ago
Excellent Value For The Money!
Great Shooting Gun! Cannot Be Beat!
June 22, 2018
10 months ago
Very impressive Rifle. Thoroughly enjoy it in my collection!
Favorite product I have received so far!
June 18, 2018
10 months ago
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
10 months ago
Ok for the money
Have only shot 30 rounds through it and have two light primer strikes.
May 5, 2018
11 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
11 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
12 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

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