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

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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
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
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 51 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
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.
When will you get this back in stock?
Ronnie T on Jan 19, 2019
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.
Does this upper have a round or triangle endcap?
HERB G on Aug 13, 2018
BEST ANSWER: They have a triangle end cap.
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..
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
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
When will this upper be back in stock?
Zachary C on Oct 9, 2018
Does this come with the flat dark earth handguard to match the lower?
Vincent D on Sep 19, 2018


4.7 / 5.0
57 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
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
10 months 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
5 months ago
Just Buy It, Can't Go Wrong
Great Price, Excellent Quality, Functions Perfectly.
March 18, 2019
6 months ago
Last year I built my first AR15 from components supplied by PSA and it turned out great! It is in 5.56 NATO and it shoots great! Gophers here in Montana taken at 250 yards with it really put a smile on my face, probably not so much for the gopher!

This year I wanted to build a matching AR10 in 308 Winchester and when my new upper combo arrived I was very pleased with the massive strength of the unit.

I am not finished with the build as of yet but I am very confident it will preform every bit as good as my AR15. I can hardly wait to rip through a 30 rnd magazine of 308's with it!
February 20, 2019
6 months ago
PA10 Upper Mated to a Polymer80 Lower
Gotta love that .308 Winchester round! Your PA10 upper fit perfect for my build! I like that old school iron sights look. Brings back memories of Iraq in the early days before all the optics entered the scene.
User submitted image
Added Dec 24, 2018
December 24, 2018
PSA ar 10 build
When I bought the lower, parts were not as available as i would have wished. I found a Stoner LPK for ar 10's which worked well with a little fitting. Finding a correct buffer for a fixed stock was no fun. I had a vintage m16 butt The finished rifle stock ( no trap) on hand. The upper went on with no trouble. the finished rifle was surprisingly accurate and easy to shot. However it remains a work in progress.
November 19, 2018
9 months ago
Big Bang for the Buck!
Paired this upper with a A2 style pa10 gen2 lower added a magpul 25 round magazine and tula steel cased 308. oh what fun it is laugh and sing at the rifle range tonight...... when on sale, this set up is under 500 bucks. i also like the 18 inch barrel which keeps the weight down a little and the mid length lets you have a decent sight radius for a longer distance caliber. i want to add that i have several hundred rounds down the barrel and no failures. Just wipe down then a light lube on the bcg and pull a snake through the barrel to shoot. also flat top allows the gamut of rear sights and optics, i use a 1-4 power bushnell with the throw lever.
Nothing else in the 308 caliber can compare on price with performance and breaks the back of m1a and hibuck m110 wannabees. only rra oracle competes on price and performance but they are still more money cannot buy upper separate and no a2 front sight gas block which eliminates them in my book. PSA hit a grand slam with this upper and resulting rifle set up.
November 18, 2018
9 months ago
PSA Gen2 PA10 18" Midlength
decent quality , but fits a little sloppy on pa-10 lower I purchased separately. fit could be better.
November 2, 2018
9 months ago

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