PSA Gen2 PA10 18" Midlength Nitride .308 WIN 1:10 Upper With BCG and Charging Handle - 516445313

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PSA Gen2 PA10 18" Midlength Nitride .308 WIN 1:10 Upper With BCG and Charging Handle - 516445313


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: 516445313
UPC: 516445313
MFR#: 516445313
  • Barrel Length: 18"
  • Gas System: Midlength
  • Barrel Profile: A2 Style
  • Barrel Steel: 4150V Chrome-Moly Vanadium
  • Barrel Finish: Nitride
  • 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 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

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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 Nitride .308 WIN 1:10 Upper - With BCG and Charging Handle - 516445313

Barrel: machined from 4150V steel, chambered in .308 WIN with a 1/10 twist, mid-length gas, and nitride treated for accuracy and durability.   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.

  • 7075-T6 Forged aluminum receiver
  • 18" 4150v Chrome moly vanadium 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

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: 516445313
SKU 516445313
Department Uppers
Manufacturer Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label N/A
Free Shipping Qty N/A
SKU: 516445313

Questions and Answers

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Browse 23 questions Browse 23 questions and 53 answers
Is this compatible with the 308 80% Arms Lower which is DPMS compatible?
Robert K on Jul 26, 2018
BEST ANSWER: yes but is not as long as upper ar10's
When will you get this back in stock?
Ronnie T on Jan 19, 2019
Will a PSA Mil Spec carry handle fit on this upper?
Ivav V on Jun 17, 2018
BEST ANSWER: The 308 receiver is longer but the mil spec carry handle will attach and function perfectly. If attached to the rear of the receiver, there will be 2 slots remaining in the front.
I want to change the hand guard to a free float one. what thread pattern and rail height do i need?
terry on Oct 10, 2018
which upper will be more accurate, and last longer, this Stainless Steel one, or the 4150V Chrome-Moly Vanadium black nitrate?
D. Graves on Jul 17, 2018
PSA Gen2 PA10 18
PSA Gen2 PA10 18" Midlength Nitride .308 WIN 1:10 Upper With BCG and Charging Handle - 516445313
PSA Gen2 PA10 18
PSA Gen2 PA10 18" Midlength Stainless Steel .308 WIN 1:10 Upper With BCG and CH - 516445344
BEST ANSWER: You will see about the same for round count durability. The stainless accuracy will fall off quickly when the barrel wears out as the vanadium will lose accuracy slowly over time. With proper care either will last a minimum of 8 to 10 thousand rounds. Accuracy should be about the same for both.
Why is this taking so long to get in? I've been waiting since March 2019 and they haven't been in stock. Is Palmetto discontinuing this particular product?
Richard on May 30, 2019
BEST ANSWER: Why hasn’t Palmetto answered?
I’m in the same situation???
Does this upper have a round or triangle endcap?
HERB G on Aug 13, 2018
BEST ANSWER: They have a triangle end cap.
When will this upper be back in stock?
Zachary C on Oct 9, 2018
Is the upper a high or low profile?
Calieb S on Aug 30, 2018
BEST ANSWER: Mine is low profile. Unless they made changes this also be low profile.
Will a gen 1 lower fit this gen 2 upper?
Don M on Aug 13, 2018
BEST ANSWER: When i bought my gen 2 on their desription it stated wthat the lower would work on gen 2 upper but recommend getting a gen 2 lower do to the cosmedics of the gen 2 upper. I pesonaly did not see if they would match up as i sold my gen 1 rifle..
Is the FSB pinned or does it use set screws?
Jason G on Oct 14, 2018
BEST ANSWER: Mine I bought 11 months ago has tapered pins like their suppose to have.
What is the muzzle diameter behind the threads? Needed info for muzzle break.
MuzzleBreak on Dec 27, 2018
BEST ANSWER: As measured with vernier caliper on my upper that has the PSA provided flash hider installed, the the first 19/32 of barrel length behind the crush washer measures .689 inch. The next 5.5 inches of barrel length up to the FSB measures .745 inch.
What quad rail will fit?
Mark W on Dec 25, 2018
BEST ANSWER: Anything labeled for the Winchester .308 should fit. you will also need a low-profile .750 gas block. I bought a .308 15" quad rail for my gen II and it fits nicely.
Can the front site be removed?
Michael on Dec 7, 2018
BEST ANSWER: Yes A2 front sights are pinned you tube has many videos on how to remove
What is diameter of holes where it pins to lower?
Lynn on Dec 23, 2018
BEST ANSWER: Dpms configuration is .154”. Some other brands have larger holes or won’t work with dpms style receivers
Is this compatible with a dpms oracle 308?
Dave G on Jan 13, 2019
BEST ANSWER: This is the dpms pattern. I believe the oracle is an AR 15 lower. This is for AR 10/308 lowers.
I have a 16inch DPMS Oracle. Will the upper fit and function on the Oracle lower?
MikeS on Oct 11, 2018
BEST ANSWER: There’s really not a mil spec 308, I’d stick with a palmetto lower and not risk it
Will the PSA GEN2 PA10 upper fit on a Aero Precision lower?
Darryl B on Aug 19, 2018
BEST ANSWER: If the aero precision lower is a DPMS pattern it will .
Is the gen 2 upper the dpms low or high profile?? For matching free float handguards.
Adam on Aug 14, 2018
BEST ANSWER: I remember it being high profile however I had issues with this upper when re-racking. Would not sit properly and would damage round. I'd say buy their 20in stainless uppers..
Will the bolt carrier and charging handle out of this upper fit a AERO Precision M5 upper?
Mark F on Dec 11, 2018
Can this fit on a CMMG lower?
Alec A on Dec 8, 2018
What length quadrail would this take?
dolphgheist on Dec 6, 2018
Does this come with the flat dark earth handguard to match the lower?
Vincent D on Sep 19, 2018


4.7 / 5.0
62 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Impulse satisfied!
Rode down to Mt. Pleasant store to get AR parts for a build and got to talking to Ken, who I deal with a lot. He asked me if I was still looking to build a 308 and I said of course, what 've you got? He informed me He had a billet lower Gen2 EPT A2 left that was on sale online and an upper on sale as well. I said let's look at them and He pulled them out. The billet lower was impressive, well machined and a nice rubber PSA grip, which I prefer over the Magpul.The EPT was slick, as usual, and I use them on all my guns! The upper was outstanding as well.basic AR 10 with F2 front sight delta ring and stock but a really nice nitrided barrel. FYI, when PSA says nitrided, it seems to be the QPQ process as opposed to their Melonite (which is a brand name process).The Melonite is a duller, gray/black while the Nitrided is a satin black (much nicer, imho) Ken was gracious enough to match the online prices,so I left with the lower for 179.99 and the upper for 279.99. Got it home and put a Magpul mid-length MOE handguard on it and a Magpul Pro rear sight. Using Armscor 168 gr. FMJBT, I got it zeroed at 75 yards, hitting center mass of a 9' foam pie plate. It shoots an average 2.5 inches with iron sights! Insignificantly better, like 2 inches, with a Romeo5 red dot. With better ammo and a real scope, this thing should be a bear! Pretty work, PSA,pretty work! Semper Fi.
September 14, 2019
Another great buy from PSA
Works Flawlessly no issues
August 13, 2019
8 months ago
Another great buy from PSA
Works Flawlessly no issues
August 13, 2019
8 months ago
308 upper
performs very well with my Gen 2 lower.
August 9, 2019
1 year ago
Put it on my Palmetto lower. Runs perfect.
User submitted image
User submitted image
July 10, 2019
1 year ago
Great price, fast shipping and smooth running, Thanks~Savagerrray
June 17, 2019
1 year ago
Never in stock!
I would buy one if they ever decided to stock them again, STILL WAITING! (Been MONTHS!)
June 14, 2019
get you one
no issues whatsoever have taken 2 deer and multiple pigs with it, shot sub moa at 100y with federal fusion 165grn.
April 23, 2019
1 year ago
Best price around for an AR308
I love mine, got it for $299. Stuck it on a PSA gen 2 lower with Magpul stock I got for $199. $500 AR308!
March 20, 2019
8 months ago
Just Buy It, Can't Go Wrong
Great Price, Excellent Quality, Functions Perfectly.
March 18, 2019
9 months ago